Ajaccio, Corsica climate

Csa Hot-summer Mediterranean

Ajaccio has a seasonal mild-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is August with an average daily high near 85°F, while the coldest is February averaging around 40°F at night. Precipitation totals about 25 inches a year and is strongly seasonal — November alone averages 4.4 inches while July barely receives 0.34 inches.

☀️ Summers

Warm

Highs near 85°F in August.

About 8 days a year above 90 °F

❄️ Winters

Chilly

Lows near 40°F in February.

About 8 freezing nights a year

🌧️ Rain

Moderate rainfall

About 25 in of rain a year.

Wettest in November

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+1.4 °F 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

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Ajaccio climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	57	57	61	65	72	79	84	85	79	73	65	59
Avg temp (°F)	49	49	52	56	63	69	74	75	69	64	57	51
Avg low (°F)	40	40	43	47	53	60	64	65	60	55	48	42
Precipitation (in)	2.1	1.9	2.0	2.1	2.0	1.0	0.3	0.6	2.3	3.4	4.4	2.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	57	57	61	65	72	79
Avg temp (°F)	49	49	52	56	63	69
Avg low (°F)	40	40	43	47	53	60
Precipitation (in)	2.1	1.9	2.0	2.1	2.0	1.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	84	85	79	73	65	59
Avg temp (°F)	74	75	69	64	57	51
Avg low (°F)	64	65	60	55	48	42
Precipitation (in)	0.3	0.6	2.3	3.4	4.4	2.9

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	11	10	9	11	8	4	2	3	7	10	13	12
Days with high ≥ 90°F (days)	—	—	—	0.0	0.2	1	3	3	0.3	0.1	—	—
Days with low ≤ 32°F (days)	2	3	1.0	—	—	—	—	—	—	—	0.3	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	11	10	9	11	8	4
Days with high ≥ 90°F (days)	—	—	—	0.0	0.2	1
Days with low ≤ 32°F (days)	2	3	1.0	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	2	3	7	10	13	12
Days with high ≥ 90°F (days)	3	3	0.3	0.1	—	—
Days with low ≤ 32°F (days)	—	—	—	—	0.3	2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	65	62	59	58	52	39	25	30	45	57	66	66
Clear days (≤ 30% cloud)	5	5	7	6	9	14	21	19	11	8	4	4
Partly cloudy days (30–70%)	10	10	11	11	11	11	8	9	11	11	11	10
Cloudy days (≥ 70%)	16	13	13	12	11	6	2	3	8	13	16	17
Relative humidity (%)	80	78	76	74	69	64	58	57	65	74	79	80
Wind speed (mph)	8.3	8.2	8.5	7.9	6.6	6.2	6.2	6.0	6.9	7.5	8.5	8.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	65	62	59	58	52	39
Clear days (≤ 30% cloud)	5	5	7	6	9	14
Partly cloudy days (30–70%)	10	10	11	11	11	11
Cloudy days (≥ 70%)	16	13	13	12	11	6
Relative humidity (%)	80	78	76	74	69	64
Wind speed (mph)	8.3	8.2	8.5	7.9	6.6	6.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	25	30	45	57	66	66
Clear days (≤ 30% cloud)	21	19	11	8	4	4
Partly cloudy days (30–70%)	8	9	11	11	11	10
Cloudy days (≥ 70%)	2	3	8	13	16	17
Relative humidity (%)	58	57	65	74	79	80
Wind speed (mph)	6.2	6.0	6.9	7.5	8.5	8.9

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Ajaccio, a weather station, about 5 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 →