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 January 27, Tuesday	22	16.3 61	741.4 29.19 988.45 988.45	764.9 30.11 1019.78 1019.78	0.7 0.03 0.93 0.93	86	Calm, no wind	Calm			100%. 10/10. 8 oktas						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	14.0 57
	19	17.4 63	740.7 29.16 987.52 987.52	763.9 30.07 1018.45 1018.45	0.8 0.03 1.07 1.07	82	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					20.4 69	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	14.2 58	Trace of precipitation Trace of precipitation	24
	16	20.3 69	739.9 29.13 986.45 986.45	762.9 30.04 1017.12 1017.12	-1.4 -0.06 -1.87 -1.87	70	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	no clouds no clouds no clouds	2500 or more, or no clouds. 8202 or more, or no clouds.	No Altocumulus, Altostratus or Nimbostratus.	Cirrostratus not progressively invading the sky and not entirely covering it.	15.0 9.3	14.6 58
	13	17.4 63	741.3 29.19 988.32 988.32	764.5 30.1 1019.25 1019.25	-1.4 -0.06 -1.87 -1.87	81	Wind blowing from the north	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			100%. 10/10. 8 oktas	State of sky on the whole unchanged.	Drizzle.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Cumulus humilis or Cumulus fractus other than of bad weather, or both.	70 – 80%. 7/10 – 8/10. 6 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		15.0 9.3	14.0 57	Trace of precipitation Trace of precipitation	18
	10	15.7 60	742.7 29.24 990.19 990.19	766.2 30.17 1021.52 1021.52	1.5 0.06 2 2	90	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	State of sky on the whole unchanged.	Drizzle.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			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	14.1 57
	07	14.0 57	741.2 29.18 988.19 988.19	763.5 30.06 1017.92 1017.92	1.0 0.04 1.33 1.33	97	Calm, no wind	Calm			100%. 10/10. 8 oktas	Drizzle, not freezing, continuous, slight at time of observation.	Drizzle.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	14.0 57		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.		4.0 2.5	13.6 56	Trace of precipitation Trace of precipitation	12
	04	15.2 59	740.2 29.14 986.85 986.85	763.5 30.06 1017.92 1017.92	0.0 0 0 0	94	Calm, no wind	Calm			100%. 10/10. 8 oktas						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	14.3 58
	01	17.0 63	740.2 29.14 986.85 986.85	763.3 30.05 1017.65 1017.65	-0.3 -0.01 -0.4 -0.4	93	Calm, no wind	Calm			100%. 10/10. 8 oktas	State of sky on the whole unchanged.	Drizzle.	Cloud covering more than 1/2 of the sky throughout the appropriate 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	15.9 61	Trace of precipitation Trace of precipitation	6