Climate averages 1991–2020
Le Mans weather
in September.
A mild, moderately wet month: the 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Le Mans: daytime highs average 20.8°C and nights cool to about 12.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 51 mm of rain on roughly 8 days, which makes September a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 38 min on an average September day.
The nearest other city in this atlas is Tours (77 km away). In September its highs average 21.6°C, 0.9°C warmer than Le Mans, with 49 mm of rain.
Among the 57 cities listed in France, Le Mans ranks joint 25th of 57 for the warmest September highs and joint 19th of 57 for the driest September (rainfall, lowest first). The mean September high of those 57 cities is 21.3°C; Le Mans is 0.5°C cooler than that mean.
From September to October, average highs fall by 4.5°C to 16.3°C, and monthly rainfall rises from 51 mm to 69 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Le Mans climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.6°C2.5°C | 2.5°C | 63 | 10.9 | 8.99 h |
| February | 8.8°C2.1°C | 2.1°C | 52 | 9.8 | 10.210 h |
| March | 12.0°C4.0°C | 4.0°C | 52 | 10.4 | 11.912 h |
| April | 15.0°C6.1°C | 6.1°C | 54 | 10.6 | 13.614 h |
| May | 18.4°C9.6°C | 9.6°C | 63 | 11.3 | 15.115 h |
| June | 21.8°C12.9°C | 12.9°C | 48 | 8.8 | 16.016 h |
| July | 23.9°C14.7°C | 14.7°C | 44 | 7.9 | 15.616 h |
| August | 24.1°C14.9°C | 14.9°C | 47 | 7.9 | 14.314 h |
| September, selected | 20.8°C12.2°C | 12.2°C | 51 | 8.3 | 12.613 h |
| October | 16.3°C9.5°C | 9.5°C | 69 | 11.0 | 10.911 h |
| November | 11.1°C5.6°C | 5.6°C | 64 | 11.3 | 9.39 h |
| December | 8.0°C2.9°C | 2.9°C | 72 | 11.5 | 8.58 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Tours in SeptemberFrance · 77 kmHigh 21.6°C · Low 12.8°C · 49 mm rain
- Angers in SeptemberFrance · 82 kmHigh 21.3°C · Low 12.6°C · 50 mm rain
- Orléans, France in SeptemberFrance · 127 kmHigh 21.0°C · Low 12.2°C · 50 mm rain
- Caen in SeptemberFrance · 138 kmHigh 19.8°C · Low 12.4°C · 53 mm rain
- Rennes in SeptemberFrance · 140 kmHigh 20.5°C · Low 12.2°C · 49 mm rain
- Nantes in SeptemberFrance · 158 kmHigh 21.3°C · Low 13.0°C · 49 mm rain
- Poitiers in SeptemberFrance · 158 kmHigh 21.7°C · Low 12.6°C · 50 mm rain
- Saint-Quentin-en-Yvelines in SeptemberFrance · 159 kmHigh 19.9°C · Low 11.3°C · 48 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Le Mans) is explained once on the Le Mans year overview and on the Sources, method and limits page.