Weather archive in Vientiane (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 25, Monday	16	35.8 96	738.7 29.08 984.85 984.85	752.8 29.64 1003.65 1003.65	-2.0 -0.08 -2.67 -2.67	54	Wind blowing from the west-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas	Mist.	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 1/2 or less of the sky throughout the appropriate period.			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	300-600 984-1968	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.	10.0 6.2	25.2 77
	13	35.4 96	740.7 29.16 987.52 987.52	754.9 29.72 1006.45 1006.45	-1.4 -0.06 -1.87 -1.87	52	Wind blowing from the south-west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 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	300-600 984-1968	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.	10.0 6.2	24.0 75
	10	32.2 90	742.1 29.22 989.39 989.39	756.4 29.78 1008.45 1008.45	1.0 0.04 1.33 1.33	64	Wind blowing from the west-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas	Mist.	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 1/2 or less of the sky throughout the appropriate period.			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	300-600 984-1968	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.	8.0 5.0	24.5 76
	07	27.2 81	741.1 29.18 988.05 988.05	755.7 29.75 1007.52 1007.52		92	Wind blowing from the north	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas	Mist.	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 1/2 or less of the sky throughout the appropriate period.	26.4 80		No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	50%. 5/10. 4 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	No Cirrus, Cirrocumulus or Cirrostratus.	7.0 4.4	25.8 78
	01	27.4 81	740.4 29.15 987.12 987.12	754.9 29.72 1006.45 1006.45	-0.6 -0.02 -0.8 -0.8	81	Wind blowing from the east-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			20–30%. 2/10–3/10. 2 oktas	Mist.	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 1/2 or less of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	20–30%. 2/10–3/10. 2 oktas	1000-1500 3281-4921	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	3.0 1.9	23.9 75
May 24, Sunday	22	28.0 82	741.0 29.17 987.92 987.92	755.4 29.74 1007.12 1007.12	2.1 0.08 2.8 2.8	85	Wind blowing from the south	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			20–30%. 2/10–3/10. 2 oktas	Mist.	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 1/2 or less of the sky throughout the appropriate period.			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	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	4.0 2.5	25.3 78
	19	30.8 87	738.9 29.09 985.12 985.12	753.1 29.65 1004.05 1004.05	-0.2 -0.01 -0.27 -0.27	78	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			60%. 6/10. 5 oktas	Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation.	Thunderstorm(s) with or without precipitation.	Rain.		36.3 97	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	20–30%. 2/10–3/10. 2 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.	No Cirrus, Cirrocumulus or Cirrostratus.	7.0 4.4	26.6 80	1.0 0.04	12
	16	36.0 97	739.1 29.1 985.39 985.39	753.2 29.65 1004.18 1004.18	-2.5 -0.1 -3.33 -3.33	46	Wind blowing from the south-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 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.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	20.0 12.4	22.8 73