Uthai Thani, Thailand climate

Aw Tropical savanna (dry winter)

Uthai Thani has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 38°C, while the coldest is December averaging around 19°C at night. Precipitation totals about 1215 mm a year and is strongly seasonal — September alone averages 269 mm while January barely receives 0 mm.

☀️ All year

Very hot

Daytime highs near 38°C most of the year.

About 289 days a year above 32 °C

🌙 Nights

Stays warm

Even the coolest nights stay near 19°C.

🌧️ Rain

Wet

About 1215 mm of rain a year.

Wettest in September

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+0.4 °C vs 50 years ago

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)

Uthai Thani climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	35	37	38	36	35	34	34	33	33	33	32
Avg temp (°C)	26	29	31	32	31	30	30	29	29	29	27	26
Avg low (°C)	20	22	25	26	26	26	25	25	25	24	22	19
Precipitation (mm)	0	14	46	44	166	131	158	179	269	166	31	11

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	33	35	37	38	36	35
Avg temp (°C)	26	29	31	32	31	30
Avg low (°C)	20	22	25	26	26	26
Precipitation (mm)	0	14	46	44	166	131

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	34	34	33	33	33	32
Avg temp (°C)	30	29	29	29	27	26
Avg low (°C)	25	25	25	24	22	19
Precipitation (mm)	158	179	269	166	31	11

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	1	1	3	5	13	14	16	17	19	13	3	1
Days with high ≥ 32°C (days)	21	24	28	28	28	28	26	26	24	23	19	16

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	1	1	3	5	13	14
Days with high ≥ 32°C (days)	21	24	28	28	28	28

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	16	17	19	13	3	1
Days with high ≥ 32°C (days)	26	26	24	23	19	16

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	34	35	45	56	77	87	90	92	87	67	46	35
Relative humidity (%)	53	46	46	51	67	77	80	83	85	82	73	61
Wind speed (m/s)	1.3	1.5	1.6	1.6	1.5	1.6	1.6	1.5	1.1	1.1	1.3	1.4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	34	35	45	56	77	87
Relative humidity (%)	53	46	46	51	67	77
Wind speed (m/s)	1.3	1.5	1.6	1.6	1.5	1.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	90	92	87	67	46	35
Relative humidity (%)	80	83	85	82	73	61
Wind speed (m/s)	1.6	1.5	1.1	1.1	1.3	1.4

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Nakhon Sawan, a weather station, about 49 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 →