Sfax, Tunisia climate

BWh Hot desert

Sfax has a seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is August with an average daily high near 33°C, while the coldest is January averaging around 6°C at night. Precipitation totals about 225 mm a year and is strongly seasonal — September alone averages 36 mm while July barely receives 1 mm.

☀️ Summers

Hot

Highs near 33°C in August.

❄️ Winters

Cool

Lows near 6°C in January.

🌧️ Rain

Very dry

About 225 mm of rain a year.

Wettest in September

⛅ Sky & trend

Fairly sunny

More sun than cloud through the year.

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)

Sfax climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	18	18	20	23	26	30	33	33	31	27	23	19
Avg temp (°C)	12	13	15	18	21	25	28	28	26	23	17	13
Avg low (°C)	6	7	10	13	16	20	22	23	21	18	12	8
Precipitation (mm)	18	19	27	19	13	5	1	6	36	34	21	26

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	18	18	20	23	26	30
Avg temp (°C)	12	13	15	18	21	25
Avg low (°C)	6	7	10	13	16	20
Precipitation (mm)	18	19	27	19	13	5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	33	33	31	27	23	19
Avg temp (°C)	28	28	26	23	17	13
Avg low (°C)	22	23	21	18	12	8
Precipitation (mm)	1	6	36	34	21	26

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	52	48	45	42	38	27	16	21	43	49	53	55
Relative humidity (%)	72	71	71	70	69	67	64	64	68	69	68	71
Wind speed (km/h)	15.6	15.3	14.6	14.5	14.2	13.5	12.4	12.2	13.5	13.5	15.2	16.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	52	48	45	42	38	27
Relative humidity (%)	72	71	71	70	69	67
Wind speed (km/h)	15.6	15.3	14.6	14.5	14.2	13.5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	16	21	43	49	53	55
Relative humidity (%)	64	64	68	69	68	71
Wind speed (km/h)	12.4	12.2	13.5	13.5	15.2	16.8

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Thyna, a weather station, about 7 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 →