Climate averages 1991–2020
Le Havre weather
in September.
A mild, moderately wet month: the 3rd warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Le Havre: daytime highs average 19.0°C and nights cool to about 13.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 78 mm of rain on roughly 12 days, which makes September a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 40 min on an average September day.
The nearest other city in this atlas is Caen (48 km away). In September its highs average 19.8°C, 0.9°C warmer than Le Havre, with 53 mm of rain.
Among the 57 cities listed in France, Le Havre ranks 54th of 57 for the warmest September highs and joint 45th of 57 for the driest September (rainfall, lowest first). The mean September high of those 57 cities is 21.3°C; Le Havre is 2.3°C cooler than that mean.
From September to October, average highs fall by 3.4°C to 15.6°C, and monthly rainfall rises from 78 mm to 104 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 Havre climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.9°C4.1°C | 4.1°C | 87 | 15.1 | 8.79 h |
| February | 8.4°C3.8°C | 3.8°C | 71 | 13.2 | 10.110 h |
| March | 10.8°C5.3°C | 5.3°C | 66 | 12.2 | 11.912 h |
| April | 13.3°C7.0°C | 7.0°C | 59 | 11.3 | 13.714 h |
| May | 16.1°C10.1°C | 10.1°C | 59 | 10.9 | 15.315 h |
| June | 18.9°C12.9°C | 12.9°C | 60 | 10.7 | 16.216 h |
| July | 20.8°C14.9°C | 14.9°C | 61 | 11.0 | 15.816 h |
| August | 21.2°C15.3°C | 15.3°C | 73 | 11.8 | 14.414 h |
| September, selected | 19.0°C13.4°C | 13.4°C | 78 | 11.7 | 12.713 h |
| October | 15.6°C10.8°C | 10.8°C | 104 | 14.9 | 10.811 h |
| November | 11.3°C7.5°C | 7.5°C | 111 | 16.2 | 9.29 h |
| December | 8.5°C4.8°C | 4.8°C | 121 | 16.6 | 8.28 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
- Caen in SeptemberFrance · 48 kmHigh 19.8°C · Low 12.4°C · 53 mm rain
- Rouen in SeptemberFrance · 72 kmHigh 19.7°C · Low 12.0°C · 52 mm rain
- Eastbourne in SeptemberUnited Kingdom · 142 kmHigh 17.6°C · Low 13.8°C · 66 mm rain
- Brighton in SeptemberUnited Kingdom · 149 kmHigh 17.8°C · Low 12.7°C · 67 mm rain
- Hove in SeptemberUnited Kingdom · 150 kmHigh 17.8°C · Low 12.7°C · 67 mm rain
- Worthing in SeptemberUnited Kingdom · 151 kmHigh 17.9°C · Low 12.8°C · 66 mm rain
- Cergy-Pontoise in SeptemberFrance · 152 kmHigh 20.3°C · Low 12.0°C · 44 mm rain
- Hastings, United Kingdom in SeptemberUnited Kingdom · 155 kmHigh 18.1°C · Low 12.9°C · 66 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 Havre) is explained once on the Le Havre year overview and on the Sources, method and limits page.