Climate Insights for Châteauneuf-les-Martigues

The climate in Châteauneuf-les-Martigues is temperate. The average annual temperature is 16°C and approximately 628mm of precipitation falls per year. November is the wettest month, receiving around 103mm of rainfall. Châteauneuf-les-Martigues is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to 4°C.

Temperatures in Châteauneuf-les-Martigues vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 32°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 4°C and an average of 7°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.

Châteauneuf-les-Martigues is a relatively dry area, receiving approximately 628mm of precipitation annually, which averages out to around 52mm per month. The wettest month is November, averaging 103mm of rainfall. October and May also tend to see above-average precipitation. The driest month is July, with just 14mm. That's 89mm less than November, 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.

Châteauneuf-les-Martigues is relatively calm, with an average annual wind speed of 4km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently spring in Châteauneuf-les-Martigues, which began on March 20, 2026. Châteauneuf-les-Martigues 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 July at around 32°C, while the coldest stretch bottoms out in January near 4°C. Summer is next, beginning on June 21, 2026 — 3 days from now.

The best time to visit Châteauneuf-les-Martigues is during May, June, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 59mm per month. By contrast, July can be uncomfortably hot with highs reaching 32°C, while January is the coldest period with lows dropping to 4°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 Châteauneuf-les-Martigues 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. 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.