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 September 23, Wednesday	04	24.7 76	735.2 28.94 980.19 980.19	757.8 29.83 1010.32 1010.32	-0.3 -0.01 -0.4 -0.4	95	Calm, no wind	Calm			no clouds no clouds no clouds											10.0 6.2	23.9 75
2026 September 23, Wednesday	01	25.4 78	735.5 28.96 980.59 980.59	757.9 29.84 1010.45 1010.45		91	Calm, no wind	Calm			no clouds no clouds no clouds											10.0 6.2	23.9 75
September 22, Tuesday	19	28.0 82	734.5 28.92 979.25 979.25	756.8 29.8 1008.98 1008.98		81	Calm, no wind	Calm			40%. 4/10. 3 oktas					33.7 93	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.	10.0 6.2	24.5 76
	13	32.8 91	735.1 28.94 980.05 980.05	757.0 29.8 1009.25 1009.25	-1.9 -0.07 -2.53 -2.53	56	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Clouds generally forming or developing.	Fog or ice fog or thick haze.	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	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	15.0 9.3	22.9 73
	10	30.3 87	737.0 29.02 982.59 982.59	759.2 29.89 1012.18 1012.18	0.6 0.02 0.8 0.8	66	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Clouds generally forming or developing.	Fog or ice fog or thick haze.	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	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	15.0 9.3	23.3 74
	07	22.7 73	736.4 28.99 981.79 981.79	759.1 29.89 1012.05 1012.05	1.2 0.05 1.6 1.6	97	Calm, no wind	Calm			no clouds no clouds no clouds	Fog or ice fog, sky visible, no appreciable change during the preceding hour.	Fog or ice fog or thick haze.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	22.0 72							0.5 0.3	22.2 72
	04	23.5 74	735.2 28.94 980.19 980.19	759.1 29.89 1012.05 1012.05	0.0 0 0 0	92	Calm, no wind	Calm			no clouds no clouds no clouds											10.0 6.2	22.2 72