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 September 18, Friday	17	27.0 81	743.1 29.26 990.72 990.72	754.9 29.72 1006.45 1006.45				Calm							24.5 76									No precipitation No precipitation	1
	16	27.0 81	743.2 29.26 990.85 990.85	755.5 29.74 1007.25 1007.25	-0.7 -0.03 -0.93 -0.93	96	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.			Stratocumulus other than Stratocumulus cumulogenitus.	70 – 80%. 7/10 – 8/10. 6 oktas	600-1000 1968-3281	Altostratus opacus or Nimbostratus.		6.0 3.7	26.3 79	31.0 1.22	2
	14	25.0 77	744.0 29.29 991.92 991.92	755.8 29.76 1007.65 1007.65				Calm							24.5 76	31.6 89								35.0 1.38	1
	13	27.5 82	743.9 29.29 991.79 991.79	756.2 29.77 1008.18 1008.18	-0.5 -0.02 -0.67 -0.67	88	Calm, no wind	Calm			100%. 10/10. 8 oktas	Rain, not freezing, intermittent, slight at time of observation.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	70 – 80%. 7/10 – 8/10. 6 oktas	600-1000 1968-3281	Altostratus opacus or Nimbostratus.		6.0 3.7	25.4 78	0.5 0.02	6
	11	29.8 86	745.5 29.35 993.92 993.92	757.3 29.81 1009.65 1009.65			Wind blowing from the east	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)							25.2 77	33.2 92								No precipitation No precipitation	1
	10	28.0 82	744.4 29.31 992.45 992.45	756.7 29.79 1008.85 1008.85	0.0 0 0 0	84	Calm, no wind	Calm			100%. 10/10. 8 oktas	Mist.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	60%. 6/10. 5 oktas	600-1000 1968-3281	Altocumulus cumulogenitus (or cumulonimbogenitus).	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	25.1 77
	09	27.1 81	745.7 29.36 994.19 994.19	757.5 29.82 1009.92 1009.92				Calm							25.2 77									No precipitation No precipitation	1
	08	26.6 80	745.3 29.34 993.65 993.65	757.1 29.81 1009.38 1009.38				Calm							25.2 77									No precipitation No precipitation	1
	07	25.8 78	744.4 29.31 992.45 992.45	756.8 29.8 1008.98 1008.98	0.7 0.03 0.93 0.93	93	Calm, no wind	Calm			100%. 10/10. 8 oktas	Mist.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	25.0 77		Stratocumulus other than Stratocumulus cumulogenitus.	60%. 6/10. 5 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	24.6 76
	06	25.5 78	744.2 29.3 992.19 992.19	756.0 29.76 1007.92 1007.92				Calm							24.3 76									No precipitation No precipitation	1
	05	25.3 78	744.2 29.3 992.19 992.19	756.0 29.76 1007.92 1007.92				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
	04	25.5 78	743.7 29.28 991.52 991.52	756.1 29.77 1008.05 1008.05	-0.5 -0.02 -0.67 -0.67	89	Calm, no wind	Calm			60%. 6/10. 5 oktas	Mist.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	40%. 4/10. 3 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; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	7.0 4.4	23.6 74
	03	25.7 78	744.0 29.29 991.92 991.92	755.8 29.76 1007.65 1007.65				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
	02	25.7 78	744.2 29.3 992.19 992.19	756.0 29.76 1007.92 1007.92				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
	01	25.9 79	744.2 29.3 992.19 992.19	756.6 29.79 1008.72 1008.72	-1.1 -0.04 -1.47 -1.47	91	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Mist.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	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.	7.0 4.4	24.3 76
	00	25.8 78	745.1 29.33 993.39 993.39	756.9 29.8 1009.12 1009.12				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
September 17, Thursday	23	26.2 79	745.6 29.35 994.05 994.05	757.3 29.81 1009.65 1009.65				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
	22	26.4 80	745.3 29.34 993.65 993.65	757.7 29.83 1010.18 1010.18	1.8 0.07 2.4 2.4	76	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Mist.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus other than Stratocumulus cumulogenitus.	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.	7.0 4.4	21.9 71
	21	26.5 80	745.1 29.33 993.39 993.39	756.9 29.8 1009.12 1009.12				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
	20	26.7 80	744.2 29.3 992.19 992.19	756.0 29.76 1007.92 1007.92				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
	19	27.1 81	743.5 29.27 991.25 991.25	755.8 29.76 1007.65 1007.65	1.1 0.04 1.47 1.47	80	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas	Mist.	Rain.	Cloud covering more than 1/2 of the sky throughout the appropriate period.		34.6 94	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	23.3 74	1.0 0.04	12
	18	28.7 84	743.1 29.26 990.72 990.72	754.9 29.72 1006.45 1006.45				Calm							24.3 76	33.2 92								No precipitation No precipitation	1
	17	29.7 85	742.5 29.23 989.92 989.92	754.3 29.7 1005.65 1005.65			Wind blowing from the east-southeast	Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft)							24.3 76	33.2 92								No precipitation No precipitation	1