Rennes weather by month & the best time to visit
🇫🇷 France · regional city · oceanic / maritime climate
The best time to visit Rennes is September — its sunniest month (Sunshine Score 82/100), with July and August close behind. Rennes averages about 1,848 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 42 mm of rain in September.
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- Sun hours / year
- 1,848
- Sunniest month
- September
- Peak score
- 82/100
- Rain / year
- 707 mm
- Midday UV at peak
- 6 (high)
- Population
- 228k
- Elevation
- 35 m

When is the best time to visit Rennes?
For sunshine, the best time to visit Rennes is September, then July and August. The dullest month is January (0/100, 69 mm of rain). The full month-by-month picture is in the table below.
How sunny is Rennes?
Rennes gets a moderate 1,848 hours of sunshine a year. 82 Sunshine Score points separate September (82) from January (0), so the month you pick matters. It ranks #45 of 53 destinations in France for annual sunshine, below the national median of 2,146 hours. The year's 707 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 8° / 46°F | 2° / 36°F | 69 mm | 0 |
| February | 7 | 9° / 48°F | 2° / 36°F | 58 mm | 1 |
| March | 26 | 12° / 54°F | 3° / 37°F | 57 mm | 2 |
| April | 54 | 16° / 61°F | 5° / 41°F | 46 mm | 4 |
| May | 72 | 19° / 66°F | 9° / 48°F | 58 mm | 5 |
| June | 80 | 23° / 73°F | 12° / 54°F | 50 mm | 6 |
| July | 81 | 24° / 75°F | 13° / 55°F | 48 mm | 6 |
| August | 81 | 24° / 75°F | 13° / 55°F | 47 mm | 5 |
| September | 82 | 22° / 72°F | 11° / 52°F | 42 mm | 4 |
| October | 57 | 17° / 63°F | 8° / 46°F | 75 mm | 2 |
| November | 25 | 12° / 54°F | 5° / 41°F | 77 mm | 1 |
| December | 6 | 9° / 48°F | 3° / 37°F | 80 mm | 0 |
See Rennes on the interactive sunshine globe →
Nearby places for sunshine
- Nantes France · 102 km · best in Jun · 1,989 h sun/yr
- Jersey Jersey · 131 km · best in Jul · 1,930 h sun/yr
- Caen France · 155 km · best in Jun · 1,829 h sun/yr
- Saint Peter Port Guernsey · 165 km · best in Sep · 1,931 h sun/yr
- Brest France · 203 km · best in Jul · 1,927 h sun/yr
- La Rochelle France · 214 km · best in Jun · 2,187 h sun/yr
Nearest destinations
- Dinard France · 63 km · 1,810 h sun/yr · best in Sep
- Saint-Nazaire/Montoir France · 90 km · 2,144 h sun/yr · best in Sep
- Lorient/Lann/Bihoué France · 132 km · 2,146 h sun/yr · best in Sep
- Le Mans France · 145 km · 1,956 h sun/yr · best in Sep
Head-to-head
How Rennes compares month by month: Rennes vs Nantes · Rennes vs Caen · Rennes vs Brest · Rennes vs Jersey · all comparisons
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