Weather archive in Santa Rosa
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2026 October 5, Monday | 13 | 19.0 66 | 745.3 29.34 993.65 993.65 | 762.2 30.01 1016.18 1016.18 | -0.9 -0.04 -1.2 -1.2 | 32 | Wind blowing from the east | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 40%. 4/10. 3 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 1.8 35 | |||||||||||||
12 | 17.3 63 | 746.0 29.37 994.59 994.59 | 763.0 30.04 1017.25 1017.25 | 0.3 0.01 0.4 0.4 | 37 | Wind blowing from the south-east | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 60%. 6/10. 5 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 2.5 37 | ||||||||||||||
11 | 15.3 60 | 746.5 29.39 995.25 995.25 | 763.5 30.06 1017.92 1017.92 | 1.2 0.05 1.6 1.6 | 41 | Wind blowing from the south-east | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 20–30%. 2/10–3/10. 2 oktas | 1500-2000 4921-6562 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 2.1 36 | ||||||||||||||
10 | 13.8 57 | 746.2 29.38 994.85 994.85 | 763.3 30.05 1017.65 1017.65 | 1.4 0.06 1.87 1.87 | 44 | Wind blowing from the south-southeast | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 1500-2000 4921-6562 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrostratus covering the whole sky. | 30.0 18.6 | 1.7 35 | ||||||||||||||
09 | 13.3 56 | 745.7 29.36 994.19 994.19 | 762.7 30.03 1016.85 1016.85 | 1.5 0.06 2 2 | 47 | Wind blowing from the south-southeast | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | 10.5 51 | 19.1 66 | Stratocumulus other than Stratocumulus cumulogenitus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 1500-2000 4921-6562 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrostratus covering the whole sky. | 30.0 18.6 | 2.2 36 | Trace of precipitation Trace of precipitation | 24 | ||||||||||
08 | 12.4 54 | 745.3 29.34 993.65 993.65 | 762.2 30.01 1016.18 1016.18 | 1.7 0.07 2.27 2.27 | 66 | Wind blowing from the south-southeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 1500-2000 4921-6562 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrostratus covering the whole sky. | 30.0 18.6 | 6.1 43 | ||||||||||||||
07 | 13.0 55 | 744.8 29.32 992.99 992.99 | 761.7 29.99 1015.52 1015.52 | 1.3 0.05 1.73 1.73 | 56 | Wind blowing from the south-southeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 40%. 4/10. 3 oktas | 1500-2000 4921-6562 | Altostratus translucidus. | Cirrostratus covering the whole sky. | 30.0 18.6 | 4.3 40 | ||||||||||||||
06 | 11.7 53 | 744.2 29.3 992.19 992.19 | 761.1 29.96 1014.72 1014.72 | 0.9 0.04 1.2 1.2 | 76 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.6 46 | ||||||||||||||
05 | 12.3 54 | 743.6 29.28 991.39 991.39 | 760.4 29.94 1013.78 1013.78 | 0.4 0.02 0.53 0.53 | 73 | Wind blowing from the north-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.6 46 | ||||||||||||||
04 | 13.0 55 | 743.5 29.27 991.25 991.25 | 760.3 29.93 1013.65 1013.65 | 0.2 0.01 0.27 0.27 | 69 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.3 45 | ||||||||||||||
03 | 13.6 56 | 743.3 29.26 990.99 990.99 | 760.2 29.93 1013.52 1013.52 | 0.4 0.02 0.53 0.53 | 69 | Wind blowing from the west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 8.0 46 | No precipitation No precipitation | 6 | ||||||||||||
02 | 14.3 58 | 743.2 29.26 990.85 990.85 | 760.0 29.92 1013.25 1013.25 | 1.2 0.05 1.6 1.6 | 66 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.9 46 | ||||||||||||||
01 | 16.2 61 | 743.3 29.26 990.99 990.99 | 760.0 29.92 1013.25 1013.25 | 0.4 0.02 0.53 0.53 | 57 | Wind blowing from the north-northwest | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.7 46 | ||||||||||||||
00 | 17.5 64 | 742.9 29.25 990.45 990.45 | 759.6 29.91 1012.72 1012.72 | 0.6 0.02 0.8 0.8 | 48 | Wind blowing from the north-northwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 1000-1500 3281-4921 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 6.2 43 | ||||||||||||||
| October 4, Sunday | 23 | 18.4 65 | 742.0 29.21 989.25 989.25 | 758.8 29.87 1011.65 1011.65 | 0.2 0.01 0.27 0.27 | 42 | Wind blowing from the north-northeast | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 100%. 10/10. 8 oktas | Dust or sand raised by wind at or near the station at the time of observation, but no well-developed dust whirl(s) or sand whirl(s), and no duststorm or sandstorm seen; or, in the case of ships, blowing spray at the station. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Stratocumulus other than Stratocumulus cumulogenitus. | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 12.0 7.5 | 5.1 41 | ||||||||||
22 | 16.9 62 | 742.9 29.25 990.45 990.45 | 759.7 29.91 1012.85 1012.85 | 1.4 0.06 1.87 1.87 | 52 | Wind blowing from the north-northwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Stratocumulus other than Stratocumulus cumulogenitus. | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 6.9 44 | ||||||||||||||
21 | 16.6 62 | 742.3 29.22 989.65 989.65 | 759.2 29.89 1012.18 1012.18 | 1.1 0.04 1.47 1.47 | 56 | Wind blowing from the north-northwest | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 oktas | Clouds generally forming or developing. | Rain. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 15.0 59 | 23.7 75 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 60%. 6/10. 5 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.8 46 | Trace of precipitation Trace of precipitation | 6 | |||||||
20 | 18.7 66 | 741.8 29.2 988.99 988.99 | 758.8 29.87 1011.65 1011.65 | 0.7 0.03 0.93 0.93 | 45 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 6.6 44 | ||||||||||||||
19 | 20.9 70 | 741.5 29.19 988.59 988.59 | 758.5 29.86 1011.25 1011.25 | 0.4 0.02 0.53 0.53 | 36 | Wind blowing from the north | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Clouds generally dissolving or becoming less developed. | Rain. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. 4/10. 3 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 5.3 42 | |||||||||||
18 | 21.8 71 | 741.2 29.18 988.19 988.19 | 758.2 29.85 1010.85 1010.85 | -0.5 -0.02 -0.67 -0.67 | 42 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Rain (not freezing) not falling as shower(s). | Rain. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 60%. 6/10. 5 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 8.3 47 | |||||||||||
17 | 22.7 73 | 741.1 29.18 988.05 988.05 | 757.9 29.84 1010.45 1010.45 | -1.2 -0.05 -1.6 -1.6 | 34 | Wind blowing from the south-southeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2000-2500 6562-8202 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 6.2 43 | ||||||||||||||
16 | 22.6 73 | 741.1 29.18 988.05 988.05 | 758.0 29.84 1010.58 1010.58 | -1.8 -0.07 -2.4 -2.4 | 33 | Wind blowing from the north-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 5.5 42 | ||||||||||||||
15 | 22.7 73 | 741.7 29.2 988.85 988.85 | 758.5 29.86 1011.25 1011.25 | -1.6 -0.06 -2.13 -2.13 | 36 | Wind blowing from the south-southeast | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 40%. 4/10. 3 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 7.0 45 | No precipitation No precipitation | 6 | ||||||||||||
14 | 22.1 72 | 742.3 29.22 989.65 989.65 | 759.2 29.89 1012.18 1012.18 | -1.5 -0.06 -2 -2 | 37 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 6.6 44 | ||||||||||||||
13 | 21.6 71 | 742.9 29.25 990.45 990.45 | 759.9 29.92 1013.12 1013.12 | -1.3 -0.05 -1.73 -1.73 | 37 | Wind blowing from the west-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 60%. 6/10. 5 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 2000-2500 6562-8202 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 30.0 18.6 | 6.4 44 | ||||||||||||||