Weather archive in Viterbo (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	20	26.0 79	732.7 28.85 976.85 976.85	758.7 29.87 1011.52 1011.52		67	Wind blowing from the south-west	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			50%. 5/10. 4 oktas					31.9 89	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	40%. 4/10. 3 oktas		Altocumulus cumulogenitus (or cumulonimbogenitus).	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	20.0 12.4	19.4 67	No precipitation No precipitation	12
	19	26.8 80	732.7 28.85 976.85 976.85	758.7 29.87 1011.52 1011.52		67	Wind blowing from the south-west	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			50%. 5/10. 4 oktas						Cumulus humilis or Cumulus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	1000-1500 3281-4921	Altocumulus cumulogenitus (or cumulonimbogenitus).	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	20.0 12.4	20.1 68
	18	27.0 81	732.7 28.85 976.85 976.85	758.6 29.87 1011.38 1011.38		58	Wind blowing from the west-southwest	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 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	1000-1500 3281-4921	Altocumulus cumulogenitus (or cumulonimbogenitus).	Cirrus spissatus cumulonimbogenitus.	20.0 12.4	18.0 64
	17	28.0 82	732.7 28.85 976.85 976.85	758.5 29.86 1011.25 1011.25		61	Wind blowing from the south-west	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Lightning visible, no thunder heard.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	50%. 5/10. 4 oktas	600-1000 1968-3281	Altocumulus cumulogenitus (or cumulonimbogenitus).	Cirrus spissatus cumulonimbogenitus.	15.0 9.3	19.8 68
	16	28.8 84	732.7 28.85 976.85 976.85	758.5 29.86 1011.25 1011.25		57	Wind blowing from the south-west	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			70 – 80%. 7/10 – 8/10. 6 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	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 cumulonimbogenitus.	20.0 12.4	19.4 67
	15	31.0 88	732.7 28.85 976.85 976.85	758.2 29.85 1010.85 1010.85		47	Wind blowing from the south-west	Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft)			60%. 6/10. 5 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	1000-1500 3281-4921	Altocumulus translucidus at a single level.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	20.0 12.4	18.4 65
	14	30.4 87	732.9 28.85 977.12 977.12	758.5 29.86 1011.25 1011.25		50	Wind blowing from the south-west	Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	50%. 5/10. 4 oktas	1000-1500 3281-4921	Altocumulus translucidus at a single level.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	20.0 12.4	18.8 66	No precipitation No precipitation	6
	13	31.0 88	732.9 28.85 977.12 977.12	758.5 29.86 1011.25 1011.25		53	Wind blowing from the south-southwest	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			60%. 6/10. 5 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	600-1000 1968-3281	Altocumulus translucidus at a single level.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	20.3 69
	12	30.0 86	733.3 28.87 977.65 977.65	759.0 29.88 1011.92 1011.92		62	Wind blowing from the south	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			50%. 5/10. 4 oktas						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	50%. 5/10. 4 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	21.9 71
	11	26.8 80	733.3 28.87 977.65 977.65	759.3 29.89 1012.32 1012.32		73	Wind blowing from the south	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas						Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.	40%. 4/10. 3 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.	18.0 11.2	21.6 71
	10	24.2 76	733.3 28.87 977.65 977.65	759.5 29.9 1012.58 1012.58		72	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						Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	20–30%. 2/10–3/10. 2 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.	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.	15.0 9.3	18.8 66
	09	21.2 70	733.4 28.87 977.79 977.79	759.9 29.92 1013.12 1013.12		87	Wind blowing from the south-southwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 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 mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	20–30%. 2/10–3/10. 2 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.	15.0 9.3	19.0 66
	08	19.0 66	733.4 28.87 977.79 977.79	760.1 29.93 1013.38 1013.38		93	Wind blowing from the north	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				18.6 65		Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	40%. 4/10. 3 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.	12.0 7.5	17.8 64	3.0 0.12	12	Surface of ground wet (standing water in small or large pools on surface).
August 20, Thursday	20	28.0 82	733.6 28.88 978.05 978.05	759.4 29.9 1012.45 1012.45		75	Wind blowing from the south-southwest	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			60%. 6/10. 5 oktas					34.1 93	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	40%. 4/10. 3 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	10.0 6.2	23.2 74	No precipitation No precipitation	12