Siguiri, Guinea climate

Aw Tropical savanna (dry winter)

Siguiri has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 39°C, while the coldest is January averaging around 17°C at night. Precipitation totals about 973 mm a year and is strongly seasonal — August alone averages 249 mm while December barely receives 0 mm.

☀️ All year

Very hot

Daytime highs near 39°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 17°C.

🌧️ Rain

Moderate rainfall

About 973 mm 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)

Siguiri climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	36	38	39	38	35	32	31	32	35	35	33
Avg temp (°C)	25	28	31	32	32	29	27	26	27	28	27	25
Avg low (°C)	17	20	23	25	25	23	22	22	22	21	18	17
Precipitation (mm)	17	3	2	27	81	135	234	249	169	50	8	0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	33	36	38	39	38	35
Avg temp (°C)	25	28	31	32	32	29
Avg low (°C)	17	20	23	25	25	23
Precipitation (mm)	17	3	2	27	81	135

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	32	31	32	35	35	33
Avg temp (°C)	27	26	27	28	27	25
Avg low (°C)	22	22	22	21	18	17
Precipitation (mm)	234	249	169	50	8	0

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	32	28	40	56	65	57	65	69	59	49	33	30
Relative humidity (%)	22	18	19	30	46	63	77	84	82	68	40	28
Wind speed (m/s)	3.0	3.1	2.8	2.4	2.5	2.1	1.8	1.7	1.4	1.5	2.0	2.7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	32	28	40	56	65	57
Relative humidity (%)	22	18	19	30	46	63
Wind speed (m/s)	3.0	3.1	2.8	2.4	2.5	2.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	65	69	59	49	33	30
Relative humidity (%)	77	84	82	68	40	28
Wind speed (m/s)	1.8	1.7	1.4	1.5	2.0	2.7

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Senou / President Modibo Keita, a weather station, about 181 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 →