Weather archive in Lang Son

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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 March 30, Monday	10	26.4 80	732.5 28.84 976.59 976.59	754.8 29.72 1006.32 1006.32	1.3 0.05 1.73 1.73	69	Wind blowing from the south-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas						Cumulus humilis or Cumulus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	15.0 9.3	20.3 69
	07	22.9 73	731.2 28.79 974.85 974.85	753.8 29.68 1004.98 1004.98		80	Wind blowing from the south-east	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	State of sky on the whole unchanged.	Thunderstorm(s) with or without precipitation.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	22.9 73		Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	300-600 984-1968			15.0 9.3	19.3 67
	01	23.0 73	731.8 28.81 975.65 975.65	753.8 29.68 1004.98 1004.98	0.2 0.01 0.27 0.27	93	Calm, no wind	Calm			100%. 10/10. 8 oktas	Clouds generally forming or developing.	Thunderstorm(s) with or without precipitation.	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.			Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	100%. 10/10. 8 oktas	300-600 984-1968			10.0 6.2	21.8 71
March 29, Sunday	22	23.2 74	731.6 28.8 975.39 975.39	754.0 29.69 1005.25 1005.25	0.5 0.02 0.67 0.67	89	Calm, no wind	Calm			40%. 4/10. 3 oktas	State of sky on the whole unchanged.	Thunderstorm(s) with or without precipitation.	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.			Stratocumulus other than Stratocumulus cumulogenitus.	40%. 4/10. 3 oktas	1500-2000 4921-6562	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	21.3 70
	19	23.7 75	731.1 28.78 974.72 974.72	753.5 29.67 1004.58 1004.58	0.8 0.03 1.07 1.07	88	Calm, no wind	Calm			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas					26.6 80	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	300-600 984-1968			10.0 6.2	21.5 71	25.0 0.98	24
	16	25.2 77	730.3 28.75 973.65 973.65	752.5 29.63 1003.25 1003.25	-2.1 -0.08 -2.8 -2.8	81	Calm, no wind	Calm			100%. 10/10. 8 oktas						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			15.0 9.3	21.7 71
	13	22.4 72	732.4 28.83 976.45 976.45	755.1 29.73 1006.72 1006.72	-1.5 -0.06 -2 -2	82	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Clouds generally forming or developing.	Thunderstorm(s) with or without precipitation.	Shower(s).			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	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	15.0 9.3	19.1 66	25.0 0.98	18
	10	23.9 75	733.9 28.89 978.45 978.45	756.5 29.78 1008.58 1008.58		89	Calm, no wind	Calm			100%. 10/10. 8 oktas	Thunderstorm, but no precipitation at the time of observation.	Thunderstorm(s) with or without precipitation.	Shower(s).			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	100%. 10/10. 8 oktas	300-600 984-1968			15.0 9.3	21.9 71