Chaiyaphum, Thailand climate

Aw Tropical savanna (dry winter)

Chaiyaphum has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 37°C, while the coldest is December averaging around 19°C at night. Precipitation totals about 1134 mm a year and is strongly seasonal — September alone averages 248 mm while December barely receives 6 mm.

☀️ All year

Very hot

Daytime highs near 37°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 19°C.

🌧️ Rain

Wet

About 1134 mm of rain a year.

Wettest in September

⛅ 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)

Chaiyaphum climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	34	36	37	35	34	33	32	32	32	31	30
Avg temp (°C)	25	27	30	31	30	29	29	28	28	28	26	25
Avg low (°C)	19	21	23	25	25	25	25	24	24	23	21	19
Precipitation (mm)	10	11	50	78	154	134	126	197	248	103	17	6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	31	34	36	37	35	34
Avg temp (°C)	25	27	30	31	30	29
Avg low (°C)	19	21	23	25	25	25
Precipitation (mm)	10	11	50	78	154	134

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	32	32	32	31	30
Avg temp (°C)	29	28	28	28	26	25
Avg low (°C)	25	24	24	23	21	19
Precipitation (mm)	126	197	248	103	17	6

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	33	38	47	60	77	85	88	90	84	62	44	35
Relative humidity (%)	63	56	55	60	74	80	82	85	87	85	79	71
Wind speed (km/h)	7.6	7.4	7.4	6.6	6.6	8.4	9.0	8.4	5.9	7.1	8.3	8.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	33	38	47	60	77	85
Relative humidity (%)	63	56	55	60	74	80
Wind speed (km/h)	7.6	7.4	7.4	6.6	6.6	8.4

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	88	90	84	62	44	35
Relative humidity (%)	82	85	87	85	79	71
Wind speed (km/h)	9.0	8.4	5.9	7.1	8.3	8.9

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Chaiyaphum, a weather station, about 1 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 →