Nong Khai, Thailand climate

Aw Tropical savanna (dry winter)

Nong Khai has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 97°F, while the coldest is December averaging around 63°F at night. Precipitation totals about 65 inches a year and is strongly seasonal — August alone averages 13.3 inches while December barely receives 0.34 inches.

☀️ All year

Very hot

Daytime highs near 97°F most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 63°F.

🌧️ Rain

Very wet

About 65 in of rain a year.

Wettest in August

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Nong Khai climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	86	90	94	97	94	92	91	90	90	90	88	85
Avg temp (°F)	74	78	83	86	85	84	84	83	83	82	78	74
Avg low (°F)	63	66	72	76	77	77	77	76	76	74	69	63
Precipitation (in)	0.4	0.7	1.9	3.1	8.8	10.0	11.9	13.3	10.3	3.9	0.6	0.3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	86	90	94	97	94	92
Avg temp (°F)	74	78	83	86	85	84
Avg low (°F)	63	66	72	76	77	77
Precipitation (in)	0.4	0.7	1.9	3.1	8.8	10.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	91	90	90	90	88	85
Avg temp (°F)	84	83	83	82	78	74
Avg low (°F)	77	76	76	74	69	63
Precipitation (in)	11.9	13.3	10.3	3.9	0.6	0.3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	30	33	46	59	79	89	91	91	81	58	40	31
Relative humidity (%)	66	57	52	56	70	79	82	85	85	82	77	72
Wind speed (mph)	3.5	3.8	3.8	3.4	3.2	3.3	3.3	3.1	2.6	2.8	2.9	3.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	30	33	46	59	79	89
Relative humidity (%)	66	57	52	56	70	79
Wind speed (mph)	3.5	3.8	3.8	3.4	3.2	3.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	91	91	81	58	40	31
Relative humidity (%)	82	85	85	82	77	72
Wind speed (mph)	3.3	3.1	2.6	2.8	2.9	3.2

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Nong Khai, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →