Climate averages 1991–2020
Nancy weather
in September.
A mild, moderately wet month: the 4th warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Nancy: daytime highs average 19.8°C and nights cool to about 11.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 71 mm of rain on roughly 10 days, which makes September a moderately wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 39 min on an average September day.
The nearest other city in this atlas is Metz (48 km away). In September its highs average 19.7°C, about as warm as Nancy, with 68 mm of rain.
Among the 57 cities listed in France, Nancy ranks joint 46th of 57 for the warmest September highs and 40th of 57 for the driest September (rainfall, lowest first). The mean September high of those 57 cities is 21.3°C; Nancy is 1.5°C cooler than that mean.
From September to October, average highs fall by 4.8°C to 15.0°C, and monthly rainfall rises from 71 mm to 72 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
Nancy climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.3°C0.1°C | 0.1°C | 71 | 12.8 | 8.89 h |
| February | 6.7°C0.2°C | 0.2°C | 61 | 11.3 | 10.110 h |
| March | 10.6°C2.4°C | 2.4°C | 66 | 11.9 | 11.912 h |
| April | 14.5°C5.2°C | 5.2°C | 59 | 11.1 | 13.714 h |
| May | 18.3°C9.4°C | 9.4°C | 74 | 12.5 | 15.215 h |
| June | 21.8°C12.7°C | 12.7°C | 67 | 11.2 | 16.116 h |
| July | 24.2°C15.0°C | 15.0°C | 63 | 11.2 | 15.716 h |
| August | 24.2°C14.9°C | 14.9°C | 68 | 11.5 | 14.414 h |
| September, selected | 19.8°C11.4°C | 11.4°C | 71 | 9.8 | 12.613 h |
| October | 15.0°C8.1°C | 8.1°C | 72 | 11.9 | 10.911 h |
| November | 9.3°C3.9°C | 3.9°C | 77 | 12.7 | 9.29 h |
| December | 5.9°C1.3°C | 1.3°C | 87 | 14.2 | 8.48 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
- Metz in SeptemberFrance · 48 kmHigh 19.7°C · Low 11.4°C · 68 mm rain
- Saarbrücken in SeptemberGermany · 86 kmHigh 19.5°C · Low 11.4°C · 64 mm rain
- Luxembourg in SeptemberLuxembourg · 103 kmHigh 18.6°C · Low 10.5°C · 60 mm rain
- Strasbourg in SeptemberFrance · 115 kmHigh 20.1°C · Low 11.6°C · 70 mm rain
- Trier in SeptemberGermany · 124 kmHigh 19.1°C · Low 10.9°C · 67 mm rain
- Mulhouse in SeptemberFrance · 134 kmHigh 19.7°C · Low 11.2°C · 74 mm rain
- Kaiserslautern in SeptemberGermany · 143 kmHigh 19.4°C · Low 11.7°C · 60 mm rain
- Freiburg in SeptemberGermany · 145 kmHigh 20.0°C · Low 11.8°C · 77 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 Nancy) is explained once on the Nancy year overview and on the Sources, method and limits page.