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 22, Tuesday	18	7.7 46	715.2 28.16 953.52 953.52	749.4 29.5 999.12 999.12	2.3 0.09 3.07 3.07	68	Wind blowing from the south-west	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				6.7 44	11.9 53	Stratocumulus cumulogenitus.	40%. 4/10. 3 oktas	1500-2000 4921-6562	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.	71.0 44.1	2.2 36
	15	11.5 53	712.9 28.07 950.46 950.46	746.5 29.39 995.25 995.25		61	Wind blowing from the south-west	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)							11.3 52	11.7 53							4.2 40	Trace of precipitation Trace of precipitation	3
	12	10.6 51	711.7 28.02 948.86 948.86	745.4 29.35 993.79 993.79	0.0 0 0 0	64	Wind blowing from the south-southwest	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)							10.2 50	10.7 51							3.9 39	Trace of precipitation Trace of precipitation	3
	09	7.1 45	711.7 28.02 948.86 948.86	745.8 29.36 994.32 994.32		77	Wind blowing from the south-southeast	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				3.0 37	11.9 53	Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	50%. 5/10. 4 oktas	1000-1500 3281-4921	Altocumulus cumulogenitus (or cumulonimbogenitus).		71.0 44.1	3.3 38	No precipitation No precipitation	1
September 21, Monday	21	7.1 45	712.7 28.06 950.19 950.19	746.8 29.4 995.65 995.65		78	Wind blowing from the south-east	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)							6.9 44	7.2 45							3.5 38	Trace of precipitation Trace of precipitation	3
September 21, Monday	18	11.3 52	713.0 28.07 950.59 950.59	746.7 29.4 995.52 995.52	0.5 0.02 0.67 0.67	60	Wind blowing from the south	Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				5.6 42	15.4 60	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	2000-2500 6562-8202	No Altocumulus, 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.	71.0 44.1	3.8 39