Weather archive in Chiang Rai

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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 July 22, Wednesday	19	25.4 78	721.3 28.4 961.65 961.65	754.0 29.69 1005.25 1005.25	-0.1 -0 -0.13 -0.13	98	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Clouds generally forming or developing.	Thunderstorm(s) with or without precipitation.	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.		31.4 89	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	50%. 5/10. 4 oktas	600-1000 1968-3281	Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	10.0 6.2	25.0 77	4.0 0.16	12
	18	25.7 78	721.5 28.41 961.92 961.92	753.1 29.65 1004.05 1004.05			Wind blowing from the north-west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							23.7 75	31.3 88								2.0 0.08	1
	17	25.8 78	721.3 28.4 961.65 961.65	753.0 29.65 1003.92 1003.92			Wind blowing from the north-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							23.7 75	31.3 88								2.0 0.08	1
	16	27.2 81	721.4 28.4 961.79 961.79	754.0 29.69 1005.25 1005.25	-1.4 -0.06 -1.87 -1.87	94	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation.	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.	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.			Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	40%. 4/10. 3 oktas	600-1000 1968-3281	Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	10.0 6.2	26.2 79	0.8 0.03	1
	14	29.7 85				75	Wind blowing from the south-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							23.7 75	31.3 88							24.8 77
	13	30.4 87	722.8 28.46 963.65 963.65	755.0 29.72 1006.58 1006.58	-0.9 -0.04 -1.2 -1.2	68	Wind blowing from the south-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	10.0 6.2	23.9 75
	12	29.3 85				73	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							23.7 75	29.7 85							24.0 75
	10	27.3 81	723.7 28.49 964.85 964.85	756.3 29.78 1008.32 1008.32	0.1 0 0.13 0.13	85	Wind blowing from the south-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas						Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	50%. 5/10. 4 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	10.0 6.2	24.6 76
	09	26.3 79				86	Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							23.7 75	28.2 83							23.8 75
	08	25.7 78	723.8 28.5 964.99 964.99	755.5 29.74 1007.25 1007.25			Wind blowing from the south-southwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							23.7 75									No precipitation No precipitation	1
	07	24.3 76	723.6 28.49 964.72 964.72	756.4 29.78 1008.45 1008.45	0.3 0.01 0.4 0.4	98	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				23.7 75		Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	50%. 5/10. 4 oktas	600-1000 1968-3281	Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	10.0 6.2	23.9 75
	05	23.8 75	723.4 28.48 964.45 964.45	755.1 29.73 1006.72 1006.72				Calm							23.5 74	28.2 83								No precipitation No precipitation	1
	04	24.0 75	723.3 28.48 964.32 964.32	756.2 29.77 1008.18 1008.18	-0.1 -0 -0.13 -0.13	98	Calm, no wind	Calm			50%. 5/10. 4 oktas						Stratocumulus other than Stratocumulus cumulogenitus.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	10.0 6.2	23.7 75
	03	24.0 75	723.2 28.47 964.19 964.19	754.9 29.72 1006.45 1006.45			Wind blowing from the south-west	Calm							23.5 74	28.2 83								No precipitation No precipitation	1
	02	24.1 75	723.2 28.47 964.19 964.19	754.9 29.72 1006.45 1006.45			Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							23.5 74	28.2 83								No precipitation No precipitation	1
	01	24.3 76	723.4 28.48 964.45 964.45	756.3 29.78 1008.32 1008.32	-0.3 -0.01 -0.4 -0.4	98	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas						Stratocumulus other than Stratocumulus cumulogenitus.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	10.0 6.2	24.0 75
	00	24.1 75	723.6 28.49 964.72 964.72	755.2 29.73 1006.85 1006.85				Calm							23.5 74	28.2 83								No precipitation No precipitation	1
July 21, Tuesday	23	24.0 75	724.0 28.5 965.25 965.25	755.6 29.75 1007.38 1007.38			Wind blowing from the south	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							23.5 74	28.2 83								No precipitation No precipitation	1
	22	23.8 75	723.7 28.49 964.85 964.85	756.7 29.79 1008.85 1008.85	0.9 0.04 1.2 1.2	98	Calm, no wind	Calm			40%. 4/10. 3 oktas						Stratocumulus other than Stratocumulus cumulogenitus.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	10.0 6.2	23.4 74
	21	24.1 75	723.4 28.48 964.45 964.45	755.1 29.73 1006.72 1006.72			Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							23.5 74	28.2 83								No precipitation No precipitation	1
	20	24.2 76	723.2 28.47 964.19 964.19	754.9 29.72 1006.45 1006.45			Wind blowing from the south-southwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)							23.5 74	28.2 83								No precipitation No precipitation	1
	19	24.7 76	722.8 28.46 963.65 963.65	755.5 29.74 1007.25 1007.25	0.9 0.04 1.2 1.2	96	Calm, no wind	Calm			40%. 4/10. 3 oktas	Clouds generally dissolving or becoming less developed.	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.		28.5 83	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	Altocumulus translucidus at a single level.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	10.0 6.2	24.0 75	1.0 0.04	12