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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 29°C, while the coldest is February averaging around 4°C at night. Precipitation totals about 636 mm a year and is strongly seasonal — November alone averages 112 mm while July barely receives 9 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsAjaccio climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 14 | 16 | 18 | 22 | 26 | 29 | 29 | 26 | 23 | 18 | 15 |
| Avg temp (°C) | 9 | 9 | 11 | 13 | 17 | 21 | 23 | 24 | 21 | 18 | 14 | 10 |
| Avg low (°C) | 5 | 4 | 6 | 8 | 12 | 15 | 18 | 18 | 15 | 13 | 9 | 6 |
| Precipitation (mm) | 54 | 48 | 51 | 53 | 50 | 26 | 9 | 16 | 58 | 86 | 112 | 74 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 14 | 16 | 18 | 22 | 26 |
| Avg temp (°C) | 9 | 9 | 11 | 13 | 17 | 21 |
| Avg low (°C) | 5 | 4 | 6 | 8 | 12 | 15 |
| Precipitation (mm) | 54 | 48 | 51 | 53 | 50 | 26 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 26 | 23 | 18 | 15 |
| Avg temp (°C) | 23 | 24 | 21 | 18 | 14 | 10 |
| Avg low (°C) | 18 | 18 | 15 | 13 | 9 | 6 |
| Precipitation (mm) | 9 | 16 | 58 | 86 | 112 | 74 |
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 ≥ 32°C (days) | — | — | — | 0.0 | 0.2 | 1 | 3 | 3 | 0.3 | 0.1 | — | — |
| Days with low ≤ 0°C (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 ≥ 32°C (days) | — | — | — | 0.0 | 0.2 | 1 |
| Days with low ≤ 0°C (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 ≥ 32°C (days) | 3 | 3 | 0.3 | 0.1 | — | — |
| Days with low ≤ 0°C (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 (m/s) | 3.7 | 3.7 | 3.8 | 3.5 | 2.9 | 2.8 | 2.8 | 2.7 | 3.1 | 3.4 | 3.8 | 4.0 |
| 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 (m/s) | 3.7 | 3.7 | 3.8 | 3.5 | 2.9 | 2.8 |
| 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 (m/s) | 2.8 | 2.7 | 3.1 | 3.4 | 3.8 | 4.0 |
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.