Climate averages 1991–2020
Aix-en-Provence weather
in September.
A warm, moderately wet month: the 4th warmest and the 10th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Aix-en-Provence: daytime highs average 24.4°C and nights cool to about 14.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 72 mm of rain on roughly 7 days, which makes September a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 33 min on an average September day.
The nearest other city in this atlas is Marseille 15 (19 km away). In September its highs average 24.3°C, about as warm as Aix-en-Provence, with 64 mm of rain.
Among the 57 cities listed in France, Aix-en-Provence ranks 4th of 57 for the warmest September highs and 41st of 57 for the driest September (rainfall, lowest first). The mean September high of those 57 cities is 21.3°C; Aix-en-Provence is 3.1°C warmer than that mean.
From September to October, average highs fall by 4.9°C to 19.5°C, and monthly rainfall rises from 72 mm to 88 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
Aix-en-Provence climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.1°C1.7°C | 1.7°C | 54 | 7.1 | 9.39 h |
| February | 11.1°C1.5°C | 1.5°C | 44 | 6.1 | 10.510 h |
| March | 14.8°C4.3°C | 4.3°C | 44 | 6.4 | 11.912 h |
| April | 17.7°C7.5°C | 7.5°C | 68 | 9.0 | 13.413 h |
| May | 21.9°C11.5°C | 11.5°C | 58 | 7.6 | 14.715 h |
| June | 26.7°C15.7°C | 15.7°C | 35 | 5.1 | 15.415 h |
| July | 29.7°C18.2°C | 18.2°C | 19 | 3.2 | 15.115 h |
| August | 29.5°C18.1°C | 18.1°C | 23 | 3.8 | 14.014 h |
| September, selected | 24.4°C14.4°C | 14.4°C | 72 | 6.9 | 12.613 h |
| October | 19.5°C11.0°C | 11.0°C | 88 | 8.6 | 11.111 h |
| November | 13.9°C6.1°C | 6.1°C | 100 | 9.6 | 9.710 h |
| December | 10.6°C2.7°C | 2.7°C | 60 | 7.2 | 9.09 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
- Marseille 15 in SeptemberFrance · 19 kmHigh 24.3°C · Low 15.2°C · 64 mm rain
- Marseille in SeptemberFrance · 26 kmHigh 23.8°C · Low 16.9°C · 65 mm rain
- Toulon in SeptemberFrance · 59 kmHigh 23.9°C · Low 17.5°C · 60 mm rain
- Avignon in SeptemberFrance · 70 kmHigh 25.2°C · Low 15.2°C · 93 mm rain
- Nîmes in SeptemberFrance · 94 kmHigh 25.1°C · Low 15.3°C · 99 mm rain
- Cannes in SeptemberFrance · 126 kmHigh 23.7°C · Low 16.7°C · 70 mm rain
- Montpellier in SeptemberFrance · 127 kmHigh 23.7°C · Low 15.6°C · 96 mm rain
- Antibes in SeptemberFrance · 135 kmHigh 23.5°C · Low 17.0°C · 70 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 Aix-en-Provence) is explained once on the Aix-en-Provence year overview and on the Sources, method and limits page.