Weather archive in London / Heathrow (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 August 21, Friday	16	20.9 70	758.2 29.85 1010.85 1010.85	760.5 29.94 1013.92 1013.92		35	Wind blowing from the north-west				100%. 10/10. 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					4.8 41
	15	20.7 69	758.1 29.85 1010.72 1010.72	760.3 29.93 1013.65 1013.65		37	Wind blowing from the west-northwest				100%. 10/10. 8 oktas							70 – 80%. 7/10 – 8/10. 6 oktas					5.6 42
	14	20.0 68	758.2 29.85 1010.85 1010.85	760.4 29.94 1013.78 1013.78		40	Wind blowing from the north-northwest				100%. 10/10. 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					6.1 43
	13	20.0 68	758.2 29.85 1010.85 1010.85	760.5 29.94 1013.92 1013.92		43	Wind blowing from the north-northwest				100%. 10/10. 8 oktas							70 – 80%. 7/10 – 8/10. 6 oktas					7.0 45
	12	20.2 68	758.2 29.85 1010.85 1010.85	760.3 29.93 1013.65 1013.65		48	Wind blowing from the north-northeast				100%. 10/10. 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					8.7 48
	11	18.6 65	758.1 29.85 1010.72 1010.72	760.3 29.93 1013.65 1013.65		51	Wind blowing from the north-northeast				100%. 10/10. 8 oktas							60%. 6/10. 5 oktas					8.3 47
	10	18.3 65	757.8 29.83 1010.32 1010.32	760.0 29.92 1013.25 1013.25		55	Wind blowing from the north-east				100%. 10/10. 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					9.0 48
	09	17.4 63	757.5 29.82 1009.92 1009.92	759.7 29.91 1012.85 1012.85		63	Wind blowing from the north-northeast				100%. 10/10. 8 oktas							100%. 10/10. 8 oktas					10.3 51
	08	15.2 59	757.1 29.81 1009.38 1009.38	759.4 29.9 1012.45 1012.45		74	Wind blowing from the north-northeast											100%. 10/10. 8 oktas					10.5 51
	07	14.5 58	756.8 29.8 1008.98 1008.98	759.1 29.89 1012.05 1012.05		78	Wind blowing from the north-northeast				100%. 10/10. 8 oktas							100%. 10/10. 8 oktas					10.6 51
	06	14.1 57	756.4 29.78 1008.45 1008.45	758.6 29.87 1011.38 1011.38		79	Wind blowing from the north				100%. 10/10. 8 oktas							100%. 10/10. 8 oktas					10.5 51
	05	14.3 58	756.3 29.78 1008.32 1008.32	758.5 29.86 1011.25 1011.25		79	Wind blowing from the north				100%. 10/10. 8 oktas							90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					10.6 51
	04	14.4 58	756.3 29.78 1008.32 1008.32	758.5 29.86 1011.25 1011.25		79	Wind blowing from the north-northwest				100%. 10/10. 8 oktas							70 – 80%. 7/10 – 8/10. 6 oktas					10.8 51
	03	14.6 58	756.2 29.77 1008.18 1008.18	758.5 29.86 1011.25 1011.25		78	Wind blowing from the north				100%. 10/10. 8 oktas							100%. 10/10. 8 oktas					10.8 51
	02	15.1 59	756.0 29.76 1007.92 1007.92	758.2 29.85 1010.85 1010.85		76	Wind blowing from the north				100%. 10/10. 8 oktas							100%. 10/10. 8 oktas					10.9 52
	01	15.5 60	755.7 29.75 1007.52 1007.52	757.9 29.84 1010.45 1010.45		76	Wind blowing from the north				100%. 10/10. 8 oktas							50%. 5/10. 4 oktas					11.2 52
	00	15.5 60	755.3 29.74 1006.98 1006.98	757.6 29.83 1010.05 1010.05		75	Wind blowing from the north				100%. 10/10. 8 oktas							40%. 4/10. 3 oktas					11.0 52
August 20, Thursday	23	16.2 61	755.2 29.73 1006.85 1006.85	757.4 29.82 1009.78 1009.78		77	Calm, no wind	Calm			100%. 10/10. 8 oktas	Drizzle (not freezing) or snow grains.						100%. 10/10. 8 oktas					12.1 54
	22	16.7 62	754.8 29.72 1006.32 1006.32	757.0 29.8 1009.25 1009.25		75	Wind blowing from the north				100%. 10/10. 8 oktas							50%. 5/10. 4 oktas					12.2 54
	21	16.9 62	754.4 29.7 1005.78 1005.78	756.6 29.79 1008.72 1008.72		74	Wind blowing from the north-northwest				70 – 80%. 7/10 – 8/10. 6 oktas							50%. 5/10. 4 oktas					12.1 54
	20	17.8 64	753.7 29.67 1004.85 1004.85	755.9 29.76 1007.78 1007.78		69	Wind blowing from the west-northwest											20–30%. 2/10–3/10. 2 oktas					11.9 53
	19	18.9 66	753.1 29.65 1004.05 1004.05	755.2 29.73 1006.85 1006.85		62	Wind blowing from the west-northwest				60%. 6/10. 5 oktas	Rain (not freezing).						20–30%. 2/10–3/10. 2 oktas					11.4 53
	18	18.1 65	752.7 29.63 1003.52 1003.52	754.9 29.72 1006.45 1006.45		71	Wind blowing from the west-northwest				100%. 10/10. 8 oktas	Rain, not freezing, slight.						90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					12.8 55
	17	20.5 69	752.2 29.61 1002.85 1002.85	754.3 29.7 1005.65 1005.65		61	Wind blowing from the west-northwest											100%. 10/10. 8 oktas					12.6 55
	16	18.9 66	751.9 29.6 1002.45 1002.45	754.0 29.69 1005.25 1005.25		69	Wind blowing from the west-southwest				100%. 10/10. 8 oktas	Rain.						50%. 5/10. 4 oktas					13.0 55