Weather archive in Bhumibol Dam

To receive explanations, hover over the appropriate heading

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 May 5, Tuesday	02	24.7 76	745.9 29.37 994.45 994.45	757.6 29.83 1010.05 1010.05			Wind blowing from the south-east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							22.1 72	38.5 101								No precipitation No precipitation	1
	01	25.0 77	745.8 29.36 994.32 994.32	758.2 29.85 1010.85 1010.85	0.5 0.02 0.67 0.67	91	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Mist.	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.			Stratocumulus other than Stratocumulus cumulogenitus.	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.	7.0 4.4	23.5 74	20.0 0.79	18
	00	24.5 76	746.5 29.39 995.25 995.25	758.2 29.85 1010.85 1010.85			Wind blowing from the east	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							22.1 72	38.5 101								No precipitation No precipitation	1
May 4, Monday	23	24.6 76	746.5 29.39 995.25 995.25	758.2 29.85 1010.85 1010.85			Wind blowing from the east-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							22.1 72	38.5 101								No precipitation No precipitation	1
	22	24.7 76	745.3 29.34 993.65 993.65	757.7 29.83 1010.18 1010.18	3.4 0.13 4.53 4.53	91	Calm, no wind	Calm			100%. 10/10. 8 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.	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.	6.0 3.7	23.1 74	20.0 0.79	1
	21	29.1 84				53	Wind blowing from the east-northeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)															18.5 65	No precipitation No precipitation	1
	20	34.0 93				45	Wind blowing from the east-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)															20.3 69	No precipitation No precipitation	1
	19	34.5 94	741.9 29.21 989.12 989.12	753.8 29.68 1004.98 1004.98	0.5 0.02 0.67 0.67	54	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Haze.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.		40.8 105	Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	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.	7.0 4.4	23.8 75
	18	36.7 98				33	Wind blowing from the east-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)															17.7 64	No precipitation No precipitation	1
	17	37.5 100				28	Wind blowing from the east-southeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)															15.8 60	No precipitation No precipitation	1
	16	38.5 101	741.4 29.19 988.45 988.45	753.2 29.65 1004.18 1004.18	-2.8 -0.11 -3.73 -3.73	42	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Haze.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.			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.	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.	7.0 4.4	23.6 74
	15	37.7 100				27	Wind blowing from the east-southeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)															15.8 60	No precipitation No precipitation	1
	14	38.0 100				25	Wind blowing from the south-east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)															14.8 59	No precipitation No precipitation	1
	13	37.7 100	744.2 29.3 992.19 992.19	756.1 29.77 1008.05 1008.05	-1.4 -0.06 -1.87 -1.87	36	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Haze.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.			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.	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.	7.0 4.4	20.4 69
	12	36.4 98				25	Wind blowing from the east-southeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)															13.6 56	No precipitation No precipitation	1
	11	36.5 98				30	Wind blowing from the north-east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)															16.5 62	No precipitation No precipitation	1
	10	34.0 93	745.6 29.35 994.05 994.05	757.6 29.83 1010.05 1010.05	0.6 0.02 0.8 0.8	49	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Haze.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.			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.	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.	7.0 4.4	21.7 71
	09	32.0 90				49	Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)															20.1 68	No precipitation No precipitation	1
	08	30.0 86				57	Wind blowing from the south-southwest	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)															20.7 69	No precipitation No precipitation	1
	07	29.3 85	745.0 29.33 993.25 993.25	757.2 29.81 1009.52 1009.52	1.2 0.05 1.6 1.6	68	Wind blowing from the west	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas	Mist.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	24.8 77		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.	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.	7.0 4.4	22.7 73
	06	28.6 83				62	Wind blowing from the west-southwest	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)															20.6 69	No precipitation No precipitation	1
	05	29.0 84				61	Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)															20.6 69	No precipitation No precipitation	1
	04	29.0 84	743.8 29.28 991.65 991.65	756.1 29.77 1008.05 1008.05	-1.2 -0.05 -1.6 -1.6	68	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Mist.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	Cloud covering 1/2 or less of the sky throughout the appropriate period.			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.	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.	7.0 4.4	22.5 73
	03	29.7 85				59	Wind blowing from the west	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)															20.8 69	No precipitation No precipitation	1
	02	30.6 87				54	Wind blowing from the west-northwest	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)															20.4 69	No precipitation No precipitation	1