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 September 27, Saturday	07	25.4 78	736.9 29.01 982.45 982.45	759.4 29.9 1012.45 1012.45	0.8 0.03 1.07 1.07	95	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas				24.1 75		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	24.5 76	0.8 0.03	12
	04	24.2 76	736.1 28.98 981.39 981.39	758.7 29.87 1011.52 1011.52	-0.4 -0.02 -0.53 -0.53	95	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 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			10.0 6.2	23.4 74
	01	24.2 76	736.5 29 981.92 981.92	759.1 29.89 1012.05 1012.05	-0.7 -0.03 -0.93 -0.93	97	Calm, no wind	Calm			40%. 4/10. 3 oktas	State of sky on the whole unchanged.	Rain.	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 humilis or Cumulus fractus other than of bad weather, or both.	40%. 4/10. 3 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	10.0 6.2	23.7 75	0.8 0.03	6
September 26, Friday	22	24.4 76	737.2 29.02 982.85 982.85	760.0 29.92 1013.25 1013.25	1.6 0.06 2.13 2.13	98	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	State of sky on the whole unchanged.	Rain.	Cloud covering more than 1/2 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.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968			10.0 6.2	24.1 75
	19	24.5 76	735.6 28.96 980.72 980.72	758.2 29.85 1010.85 1010.85	1.0 0.04 1.33 1.33	97	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	State of sky on the whole unchanged.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.		25.7 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	24.0 75	10.0 0.39	24
	16	26.0 79	734.6 28.92 979.39 979.39	757.0 29.8 1009.25 1009.25	-0.8 -0.03 -1.07 -1.07	93	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	Rain (not freezing) not falling as shower(s).	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	60%. 6/10. 5 oktas	300-600 984-1968	Altostratus translucidus.		15.0 9.3	24.7 76
	13	25.4 78	735.4 28.95 980.45 980.45	757.9 29.84 1010.45 1010.45	-0.1 -0 -0.13 -0.13	93	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, continuous, moderate at time of observation.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		4.0 2.5	24.2 76	6.0 0.24	18
	10	25.0 77	735.5 28.96 980.59 980.59	757.9 29.84 1010.45 1010.45	1.0 0.04 1.33 1.33	95	Wind blowing from the north-west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			100%. 10/10. 8 oktas	Rain (not freezing) not falling as shower(s).	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	50%. 5/10. 4 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		15.0 9.3	24.1 75
	07	23.5 74	734.5 28.92 979.25 979.25	757.0 29.8 1009.25 1009.25	1.7 0.07 2.27 2.27	98	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, intermittent, slight at time of observation.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	22.7 73		Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus.	60%. 6/10. 5 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		10.0 6.2	23.2 74	4.0 0.16	12