Weather archive in Keflavik (airport)

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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 May 9, Saturday	00	4.6 40	764.0 30.08 1018.58 1018.58	769.4 30.29 1025.78 1025.78	0.5 0.02 0.67 0.67	77	Wind blowing from the north-west	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						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	60%. 6/10. 5 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.	No Cirrus, Cirrocumulus or Cirrostratus.	60.0 37.3	0.9 34
May 8, Friday	21	4.8 41	763.5 30.06 1017.92 1017.92	768.9 30.27 1025.12 1025.12		84	Wind blowing from the west	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.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	1000-1500 3281-4921	Altostratus opacus or Nimbostratus.		55.0 34.2	2.3 36
	18	4.8 41	763.4 30.06 1017.78 1017.78	768.8 30.27 1024.98 1024.98	0.1 0 0.13 0.13	82	Wind blowing from the north-west	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	2.5 37	6.9 44	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		45.0 28.0	2.0 36	Trace of precipitation Trace of precipitation	9
	15	5.1 41	763.3 30.05 1017.65 1017.65	768.7 30.26 1024.85 1024.85		65	Wind blowing from the west-northwest	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, intermittent, slight at time of observation.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.			Stratocumulus other than Stratocumulus cumulogenitus.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	60.0 37.3	-1.1 30
	12	4.7 40	763.5 30.06 1017.92 1017.92	768.9 30.27 1025.12 1025.12	0.2 0.01 0.27 0.27	56	Wind blowing from the west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 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	1000-1500 3281-4921	Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole.	No Cirrus, Cirrocumulus or Cirrostratus.	70.0 43.5	-3.4 26
	09	3.3 38	763.3 30.05 1017.65 1017.65	768.7 30.26 1024.85 1024.85		56	Wind blowing from the north-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			60%. 6/10. 5 oktas				-2.6 27	4.4 40	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	40%. 4/10. 3 oktas		Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	No Cirrus, Cirrocumulus or Cirrostratus.	70.0 43.5	-4.8 23	No precipitation No precipitation	1
	06	-0.3 31	763.0 30.04 1017.25 1017.25	768.5 30.26 1024.58 1024.58		66	Wind blowing from the north	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	50%. 5/10. 4 oktas	2000-2500 6562-8202	Altocumulus translucidus at a single level.	No Cirrus, Cirrocumulus or Cirrostratus.	70.0 43.5	-5.9 21
	03	-1.0 30	762.8 30.03 1016.98 1016.98	768.3 30.25 1024.32 1024.32		65	Wind blowing from the north	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0						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	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	70.0 43.5	-6.8 20
	00	0.6 33	762.4 30.02 1016.45 1016.45	767.8 30.23 1023.65 1023.65	0.5 0.02 0.67 0.67	56	Wind blowing from the north	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			20–30%. 2/10–3/10. 2 oktas						Cumulus humilis or Cumulus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas	1000-1500 3281-4921	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	60.0 37.3	-7.2 19