Climate Insights for Ajaccio

The climate in Ajaccio is temperate. The average annual temperature is 14°C and approximately 1013mm of precipitation falls per year. December is the wettest month, receiving around 154mm of rainfall. Ajaccio is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 5°C. Light snow can occur between January and December.

Temperatures in Ajaccio vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 26°C and the mean temperature sits around 23°C. January is the coolest month, with minimum temperatures around 5°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.

Ajaccio is a moderately rainy area, receiving approximately 1013mm of precipitation annually, which averages out to around 84mm per month. The wettest month is December, averaging 154mm of rainfall. November and February also tend to see above-average precipitation. The driest month is July, with just 24mm. That's 130mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 26cm annually. January is the snowiest month with approximately 10cm.

Ajaccio is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently summer in Ajaccio, which began on June 21, 2026. Ajaccio is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 26°C, while the coldest stretch bottoms out in January near 5°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Ajaccio is during June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 49mm per month. By contrast, January can be quite cold with temperatures dropping to 5°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Ajaccio based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.