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 January 20, Tuesday	21	2.0 36	746.8 29.4 995.65 995.65	752.1 29.61 1002.72 1002.72	-0.4 -0.02 -0.53 -0.53	83	Wind blowing from the north-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			20–30%. 2/10–3/10. 2 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	600-1000 1968-3281	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	70.0 43.5	-0.6 31
	18	2.6 37	747.2 29.42 996.18 996.18	752.5 29.63 1003.25 1003.25	0.3 0.01 0.4 0.4	83	Wind blowing from the east-northeast	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			20–30%. 2/10–3/10. 2 oktas				2.4 36	4.9 41	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	600-1000 1968-3281	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 spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	60.0 37.3	0.0 32	0.2 0.01	9
	15	3.5 38	746.9 29.41 995.79 995.79	752.2 29.61 1002.85 1002.85	-0.1 -0 -0.13 -0.13	87	Wind blowing from the east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas						Stratocumulus other than Stratocumulus cumulogenitus.	40%. 4/10. 3 oktas	1000-1500 3281-4921	No Altocumulus, Altostratus or Nimbostratus.	Cirrostratus not progressively invading the sky and not entirely covering it.	45.0 28.0	1.5 35
	12	4.3 40	747.0 29.41 995.92 995.92	752.3 29.62 1002.98 1002.98	1.3 0.05 1.73 1.73	87	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	State of sky on the whole unchanged.	Drizzle.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	60%. 6/10. 5 oktas	600-1000 1968-3281	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 not progressively invading the sky and not entirely covering it.	40.0 24.9	2.3 36
	09	3.5 38	745.7 29.36 994.19 994.19	751.0 29.57 1001.25 1001.25	0.6 0.02 0.8 0.8	88	Wind blowing from the south-east	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Drizzle, not freezing, intermittent, slight at time of observation.	Shower(s).	Cloud covering more than 1/2 of the sky throughout the appropriate period.	1.2 34	4.5 40	Stratocumulus cumulogenitus.	60%. 6/10. 5 oktas	600-1000 1968-3281	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.	40.0 24.9	1.6 35	5.0 0.2	15
	06	2.5 37	745.1 29.33 993.39 993.39	750.4 29.54 1000.45 1000.45	-0.1 -0 -0.13 -0.13	87	Wind blowing from the east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Drizzle, not freezing, intermittent, slight at time of observation.	Shower(s).	Drizzle.			Stratocumulus cumulogenitus.	60%. 6/10. 5 oktas	300-600 984-1968	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 not progressively invading the sky and not entirely covering it.	35.0 21.8	0.6 33
	03	1.8 35	745.2 29.34 993.52 993.52	750.5 29.55 1000.58 1000.58	1.3 0.05 1.73 1.73	92	Wind blowing from the south	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Shower(s) of rain and snow mixed, slight.	Shower(s).	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.			Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altocumulus cumulogenitus (or cumulonimbogenitus).	No Cirrus, Cirrocumulus or Cirrostratus.	15.0 9.3	0.6 33
	00	2.0 36	743.9 29.29 991.79 991.79	749.2 29.5 998.85 998.85	2.3 0.09 3.07 3.07	87	Wind blowing from the south	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			50%. 5/10. 4 oktas	Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station.	Shower(s).	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.			Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	40%. 4/10. 3 oktas	600-1000 1968-3281	Altocumulus cumulogenitus (or cumulonimbogenitus).	No Cirrus, Cirrocumulus or Cirrostratus.	40.0 24.9	0.1 32
January 19, Monday	21	3.8 39	741.6 29.2 988.72 988.72	746.8 29.4 995.65 995.65	1.4 0.06 1.87 1.87	81	Wind blowing from the south-southeast	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			40%. 4/10. 3 oktas	Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station.	Shower(s).	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.			Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	40%. 4/10. 3 oktas	300-600 984-1968	Altocumulus cumulogenitus (or cumulonimbogenitus).	No Cirrus, Cirrocumulus or Cirrostratus.	30.0 18.6	0.8 33