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
2024 December 18, Wednesday	16	29.4 85	745.7 29.36 994.19 994.19	758.0 29.84 1010.58 1010.58	-1.7 -0.07 -2.27 -2.27	53	Calm, no wind	Calm			50%. 5/10. 4 oktas	Haze.	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.			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.	7.0 4.4	18.9 66
	15	28.6 83	746.3 29.38 994.99 994.99	758.1 29.85 1010.72 1010.72	-2.4 -0.09 -3.2 -3.2	51	Wind blowing from the south-east	Calm							19.1 66	29.6 85							17.4 63
	14	28.5 83	747.1 29.41 996.05 996.05	758.8 29.87 1011.65 1011.65	-2.6 -0.1 -3.47 -3.47	52	Wind blowing from the north-northeast	Calm							19.1 66	29.6 85							17.5 64
	13	29.8 86	747.4 29.43 996.45 996.45	759.7 29.91 1012.85 1012.85	-2.5 -0.1 -3.33 -3.33	52	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Haze.	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.			Stratocumulus other than Stratocumulus cumulogenitus.	40%. 4/10. 3 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.	7.0 4.4	19.0 66
	12	28.5 83	748.7 29.48 998.18 998.18	760.5 29.94 1013.92 1013.92	-1.7 -0.07 -2.27 -2.27	51	Wind blowing from the east-southeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)							19.1 66	29.6 85							17.3 63
	11	28.2 83	749.7 29.52 999.52 999.52	761.5 29.98 1015.25 1015.25		54	Wind blowing from the east-southeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)							19.1 66	29.6 85							17.9 64
	10	26.5 80	749.9 29.52 999.78 999.78	762.3 30.01 1016.32 1016.32	1.0 0.04 1.33 1.33	64	Wind blowing from the east-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)			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.			Stratocumulus other than Stratocumulus cumulogenitus.	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	19.2 67
	09	24.3 76	750.4 29.54 1000.45 1000.45	762.2 30.01 1016.18 1016.18	1.5 0.06 2 2	73	Wind blowing from the south	Calm							19.1 66								19.2 67
	07	19.5 67	748.9 29.48 998.45 998.45	761.5 29.98 1015.25 1015.25	0.9 0.04 1.2 1.2	93	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.	19.5 67		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	18.4 65
	06	19.2 67	748.9 29.48 998.45 998.45	760.6 29.94 1014.05 1014.05	0.6 0.02 0.8 0.8		Wind blowing from the north-northwest	Calm							18.1 65	29.6 85
	05	19.2 67	748.5 29.47 997.92 997.92	760.3 29.93 1013.65 1013.65	-0.1 -0 -0.13 -0.13		Wind blowing from the north	Calm							18.1 65	29.6 85
	04	19.6 67	748.0 29.45 997.25 997.25	760.7 29.95 1014.18 1014.18	-0.4 -0.02 -0.53 -0.53	94	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	18.6 65
	03	19.6 67	748.3 29.46 997.65 997.65	760.1 29.93 1013.38 1013.38	-0.4 -0.02 -0.53 -0.53		Wind blowing from the north-west	Calm							18.1 65	29.6 85
	02	20.0 68	748.6 29.47 998.05 998.05	760.3 29.93 1013.65 1013.65	-0.1 -0 -0.13 -0.13	90	Wind blowing from the north-west	Calm							18.1 65	29.6 85							18.2 65
	01	20.5 69	748.4 29.46 997.78 997.78	761.1 29.96 1014.72 1014.72	0.1 0 0.13 0.13	91	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Mist.	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.			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	18.9 66
	00	20.7 69	748.7 29.48 998.18 998.18	760.5 29.94 1013.92 1013.92	0.1 0 0.13 0.13	88	Wind blowing from the north-west	Calm							18.1 65	29.6 85							18.6 65
December 17, Tuesday	23	21.0 70	748.7 29.48 998.18 998.18	760.5 29.94 1013.92 1013.92	0.4 0.02 0.53 0.53	87	Wind blowing from the west-northwest	Calm							18.1 65	29.6 85							18.8 66
	22	22.0 72	748.3 29.46 997.65 997.65	760.9 29.96 1014.45 1014.45	0.7 0.03 0.93 0.93	87	Calm, no wind	Calm			40%. 4/10. 3 oktas	Mist.	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.			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	19.7 67
	21	21.6 71	748.6 29.47 998.05 998.05	760.3 29.93 1013.65 1013.65	1.4 0.06 1.87 1.87	85	Wind blowing from the west	Calm							18.1 65	29.6 85							19.0 66
	20	22.5 73	748.3 29.46 997.65 997.65	760.1 29.93 1013.38 1013.38	1.5 0.06 2 2	80	Wind blowing from the west-northwest	Calm							18.1 65	29.6 85							18.9 66
	19	24.4 76	747.6 29.43 996.72 996.72	760.0 29.92 1013.25 1013.25	1.2 0.05 1.6 1.6	76	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Mist.	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.		30.1 86	Stratocumulus other than Stratocumulus cumulogenitus.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole.	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	19.9 68
	18	24.3 76	747.2 29.42 996.18 996.18	759.0 29.88 1011.92 1011.92	0.1 0 0.13 0.13	71	Wind blowing from the south-southwest	Calm							18.1 65	29.6 85							18.7 66
	17	26.5 80	746.8 29.4 995.65 995.65	758.6 29.87 1011.38 1011.38	-0.9 -0.04 -1.2 -1.2	61	Wind blowing from the south-southwest	Calm							18.1 65	29.6 85							18.3 65
	16	29.3 85	746.4 29.39 995.12 995.12	758.7 29.87 1011.52 1011.52	-1.6 -0.06 -2.13 -2.13	53	Calm, no wind	Calm			40%. 4/10. 3 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.			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.	7.0 4.4	18.8 66