Climate averages 1991–2020
Rennes weather
in April.
A cool, moderately wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Rennes: daytime highs average 14.9°C and nights cool to about 6.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 58 mm of rain on roughly 11 days, which makes April a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 37 min on an average April day.
The nearest other city in this atlas is Nantes (100 km away). In April its highs average 15.1°C, about as warm as Rennes, with 57 mm of rain.
Among the 57 cities listed in France, Rennes ranks joint 35th of 57 for the warmest April highs and joint 27th of 57 for the driest April (rainfall, lowest first). The mean April high of those 57 cities is 15.4°C; Rennes is 0.5°C cooler than that mean.
From April to May, average highs rise by 3.2°C to 18.1°C, and monthly rainfall rises from 58 mm to 63 mm.
The annual picture
April 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
Rennes climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.4°C3.3°C | 3.3°C | 64 | 11.2 | 8.89 h |
| February | 9.4°C2.9°C | 2.9°C | 53 | 9.9 | 10.210 h |
| March | 12.2°C4.6°C | 4.6°C | 52 | 10.5 | 11.912 h |
| April, selected | 14.9°C6.3°C | 6.3°C | 58 | 11.1 | 13.614 h |
| May | 18.1°C9.5°C | 9.5°C | 63 | 10.8 | 15.215 h |
| June | 21.2°C12.4°C | 12.4°C | 53 | 9.0 | 16.016 h |
| July | 23.1°C14.2°C | 14.2°C | 46 | 7.8 | 15.616 h |
| August | 23.2°C14.3°C | 14.3°C | 46 | 8.2 | 14.314 h |
| September | 20.5°C12.2°C | 12.2°C | 49 | 8.2 | 12.613 h |
| October | 16.3°C9.7°C | 9.7°C | 69 | 11.4 | 10.911 h |
| November | 11.8°C6.2°C | 6.2°C | 65 | 11.3 | 9.39 h |
| December | 8.8°C3.7°C | 3.7°C | 71 | 12.1 | 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
April in nearby cities
- Nantes in AprilFrance · 100 kmHigh 15.1°C · Low 7.1°C · 57 mm rain
- Angers in AprilFrance · 110 kmHigh 15.2°C · Low 6.6°C · 54 mm rain
- Saint Helier in AprilJersey · 124 kmHigh 11.3°C · Low 8.6°C · 57 mm rain
- Le Mans in AprilFrance · 140 kmHigh 15.0°C · Low 6.1°C · 54 mm rain
- Caen in AprilFrance · 154 kmHigh 14.3°C · Low 6.2°C · 56 mm rain
- Tours in AprilFrance · 195 kmHigh 15.5°C · Low 6.6°C · 55 mm rain
- Le Havre in AprilFrance · 202 kmHigh 13.3°C · Low 7.0°C · 59 mm rain
- Brest, France in AprilFrance · 210 kmHigh 12.5°C · Low 8.2°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 Rennes) is explained once on the Rennes year overview and on the Sources, method and limits page.