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 August 23, Sunday	22	26.0 79	726.8 28.61 968.99 968.99	749.0 29.49 998.58 998.58	-5.5 -0.22 -7.33 -7.33	94	Wind blowing from the north-west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 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.	Rain.	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			10.0 6.2	25.0 77
	19	25.8 78	732.3 28.83 976.32 976.32	747.6 29.43 996.72 996.72	7.1 0.28 9.47 9.47	98	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight at time of observation.	Rain.	Rain.		26.1 79	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.		10.0 6.2	25.5 78	107.0 4.21	24
	16	26.1 79	725.2 28.55 966.85 966.85	747.2 29.42 996.18 996.18	-1.2 -0.05 -1.6 -1.6	94	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, intermittent, slight at time of observation.	Rain.	Rain.			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.		10.0 6.2	25.1 77
	13	25.7 78	726.4 28.6 968.45 968.45	748.6 29.47 998.05 998.05		95	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, continuous, moderate at time of observation.	Rain.	Rain.			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	24.8 77	99.0 3.9	18
	07	25.0 77	727.0 28.62 969.25 969.25	749.2 29.5 998.85 998.85	1.5 0.06 2 2	94	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, continuous, slight at time of observation.	Rain.	Rain.	24.5 76		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.		10.0 6.2	23.9 75	71.0 2.8	12
	04	25.0 77	725.5 28.56 967.25 967.25	747.6 29.43 996.72 996.72	-0.7 -0.03 -0.93 -0.93	97	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, continuous, slight 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.		10.0 6.2	24.5 76
	01	25.0 77	726.2 28.59 968.19 968.19	748.4 29.46 997.78 997.78	-1.1 -0.04 -1.47 -1.47	98	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, continuous, moderate at time of observation.	Thunderstorm(s) with or without precipitation.	Rain.			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			4.0 2.5	24.7 76	64.0 2.52	6
August 22, Saturday	22	25.4 78	727.3 28.63 969.65 969.65	749.5 29.51 999.25 999.25	1.0 0.04 1.33 1.33	98	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, continuous, moderate at time of observation.	Rain.	Rain.			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	25.1 77