Rennes in May
7.0out of 10
Possible, with caveats
Mild: highs around 18°C. Frequent rain: about 11 rainy days.
18°CAvg high
9°CAvg low
11Rainy days (62 mm)
14:58 hDaylight
06:34Sunrise · 21:32 Sunset
Why this score
- Mild: highs around 18°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±3.3 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 8°C | 3°C | 64 mm | 11 | – | – | 5.4 |
| February | 9°C | 3°C | 52 mm | 10 | – | – | 5.7 |
| March | 12°C | 4°C | 52 mm | 11 | – | – | 6.1 |
| April | 15°C | 6°C | 58 mm | 11 | – | – | 6.5 |
| May | 18°C | 9°C | 62 mm | 11 | – | – | 7.0 |
| June | 21°C | 12°C | 53 mm | 9 | – | – | 7.8 |
| July | 23°C | 13°C | 46 mm | 8 | – | – | 8.1 |
| August | 23°C | 13°C | 47 mm | 8 | – | – | 8.0 |
| September | 21°C | 11°C | 49 mm | 8 | – | – | 7.8 |
| October | 16°C | 9°C | 69 mm | 12 | – | – | 6.6 |
| November | 12°C | 6°C | 65 mm | 12 | – | – | 5.9 |
| December | 9°C | 3°C | 71 mm | 12 | – | – | 5.4 |
Frequently asked questions
How hot is Rennes in May?
Daytime highs average 18°C and nights about 9°C.
When is the best time to visit Rennes?
The best months are July, August, June, September.