Weather archive in Grimsstadir
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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 September 12, Saturday | 09 | 0.3 33 | 711.8 28.02 948.99 948.99 | 746.8 29.4 995.65 995.65 | 93 | Wind blowing from the west-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. | Precipitation within sight, reaching the ground or the surface of the sea, near to, but not at the station. | Rain and snow or other types of solid precipitation | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -0.1 32 | 5.0 41 | Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. | Less than 50 Less than 50 | 14.0 8.7 | -0.7 31 | 2.0 0.08 | 15 | ||||||||||
| September 11, Friday | 18 | 4.4 40 | 703.2 27.69 937.52 937.52 | 737.2 29.02 982.85 982.85 | 85 | Wind blowing from the south | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 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. | 4.2 40 | 9.2 49 | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 40%. 4/10. 3 oktas | 300-600 984-1968 | Altostratus opacus or Nimbostratus. | 60.0 37.3 | 2.1 36 | 0.9 0.04 | 9 | ||||||||
12 | 8.0 46 | 705.5 27.78 940.59 940.59 | 739.2 29.1 985.52 985.52 | 59 | Wind blowing from the south-west | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 40%. 4/10. 3 oktas | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 40%. 4/10. 3 oktas | 2000-2500 6562-8202 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 71.0 44.1 | 0.5 33 | |||||||||||||||