Iseyin, Nigeria climate

As Tropical savanna (dry summer)

Iseyin has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is February with an average daily high near 37°C, while the coldest is August averaging around 22°C at night. Precipitation totals about 974 mm a year and is strongly seasonal — September alone averages 146 mm while December barely receives 2 mm.

☀️ All year

Very hot

Daytime highs near 37°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 22°C.

🌧️ Rain

Moderate rainfall

About 974 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)

Iseyin climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	36	37	37	35	34	32	30	29	31	32	35	36
Avg temp (°C)	29	31	31	30	29	27	26	26	26	27	29	29
Avg low (°C)	22	24	24	24	24	23	22	22	22	22	23	22
Precipitation (mm)	5	21	52	90	121	135	135	134	146	115	16	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	36	37	37	35	34	32
Avg temp (°C)	29	31	31	30	29	27
Avg low (°C)	22	24	24	24	24	23
Precipitation (mm)	5	21	52	90	121	135

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	30	29	31	32	35	36
Avg temp (°C)	26	26	26	27	29	29
Avg low (°C)	22	22	22	22	23	22
Precipitation (mm)	135	134	146	115	16	2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	30	41	62	72	70	70	78	81	78	64	38	28
Relative humidity (%)	64	67	74	81	84	87	88	88	88	87	80	69
Wind speed (m/s)	1.6	1.8	2.0	2.1	1.8	1.8	2.0	2.1	1.6	1.3	1.1	1.3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	30	41	62	72	70	70
Relative humidity (%)	64	67	74	81	84	87
Wind speed (m/s)	1.6	1.8	2.0	2.1	1.8	1.8

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	78	81	78	64	38	28
Relative humidity (%)	88	88	88	87	80	69
Wind speed (m/s)	2.0	2.1	1.6	1.3	1.1	1.3

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Save, a weather station, about 125 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 →