Climate Insights for Mayenne

The climate in Mayenne is temperate. The average annual temperature is 12°C and approximately 850mm of precipitation falls per year. Mayenne receives a notable amount of rainfall throughout the year, including during its driest month. Mayenne 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, February, December, when temperatures can drop to 3°C. Light snow can occur between January and February.

Temperatures in Mayenne vary considerably across the year, with a 21°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 24°C with a mean of 19°C. January is the coolest month, with minimum temperatures around 3°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.

Mayenne is a moderately rainy area, receiving approximately 850mm of precipitation annually, which averages out to around 71mm per month. The wettest month is December, averaging 96mm of rainfall. June and November also tend to see above-average precipitation. The driest month is July, with just 31mm. That's 66mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Light snowfall can occur between January and February, totalling around 6cm annually. February is the snowiest month with approximately 3cm.

Mayenne is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/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 Mayenne, which began on June 21, 2026. Mayenne 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 24°C, while the coldest stretch bottoms out in January near 3°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Mayenne is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 56mm per month. By contrast, January can be quite cold with temperatures dropping to 3°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 Mayenne 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.