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
2025 December 10, Wednesday	19	18.8 66	737.8 29.05 983.65 983.65	760.9 29.96 1014.45 1014.45	1.2 0.05 1.6 1.6	81	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas					25.6 78	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			10.0 6.2	15.4 60
	16	25.6 78	736.6 29 982.05 982.05	759.1 29.89 1012.05 1012.05	-1.1 -0.04 -1.47 -1.47	47	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas						Cumulus humilis or Cumulus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrostratus not progressively invading the sky and not entirely covering it.	15.0 9.3	13.3 56
	13	24.1 75	737.7 29.04 983.52 983.52	760.4 29.94 1013.78 1013.78	-2.2 -0.09 -2.93 -2.93	52	Wind blowing from the south	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	State of sky on the whole unchanged.	Fog or ice fog or thick haze.	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.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			15.0 9.3	13.7 57
	10	19.2 67	739.9 29.13 986.45 986.45	763.0 30.04 1017.25 1017.25	0.7 0.03 0.93 0.93	79	Wind blowing from the north	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			no clouds no clouds no clouds	State of sky on the whole unchanged.	Fog or ice fog or thick haze.	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.								10.0 6.2	15.4 60
	07	12.4 54	739.2 29.1 985.52 985.52	762.8 30.03 1016.98 1016.98	1.4 0.06 1.87 1.87	99	Calm, no wind	Calm			Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena.	Fog or ice fog, sky invisible, no appreciable change during the preceding hour.	Fog or ice fog or thick haze.	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.	12.3 54							0.5 0.3	12.2 54
	04	13.8 57	737.8 29.05 983.65 983.65	761.3 29.97 1014.98 1014.98	-0.6 -0.02 -0.8 -0.8	97	Calm, no wind	Calm			no clouds no clouds no clouds											10.0 6.2	13.4 56
	01	13.5 56	738.4 29.07 984.45 984.45	761.9 30 1015.78 1015.78	-1.5 -0.06 -2 -2	97	Calm, no wind	Calm			no clouds no clouds no clouds											10.0 6.2	13.1 56
December 9, Tuesday	22	15.7 60	739.9 29.13 986.45 986.45	763.3 30.05 1017.65 1017.65	1.5 0.06 2 2	93	Calm, no wind	Calm			no clouds no clouds no clouds											10.0 6.2	14.6 58
December 9, Tuesday	19	18.0 64	738.4 29.07 984.45 984.45	761.5 29.98 1015.25 1015.25	0.6 0.02 0.8 0.8	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					24.0 75	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	15.9 61