Rennes Weather & Climate

France

Rennes sees feels-like daytime highs peak around 26.8°C in August and nighttime lows bottom out near 3°C in January. December is the wettest month (~57 mm), while August is the driest (~30 mm). For sunshine, July leads with about 62% clear skies.

Best time to visit Rennes

Based on mild feels-like temperatures and low rain chances, the most comfortable months are August, July, and June — expect around 15.926.8°C with roughly 18% chance of rain on a given day in August.

Rennes climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January3° / 8.3°30%52 mm33%18.9 kph
February3.1° / 8.5°24%41 mm38%18.5 kph
March4.5° / 11.7°23%37 mm41%17.8 kph
April7° / 15.3°25%37 mm46%17.1 kph
May10.5° / 19°26%42 mm48%16.1 kph
June14.3° / 23.2°21%35 mm55%15.2 kph
July16.6° / 26.7°19%33 mm62%14.6 kph
August15.9° / 26.8°18%30 mm60%14.2 kph
September13.4° / 23°22%40 mm55%15.2 kph
October10.2° / 17.2°29%53 mm47%16.6 kph
November5.8° / 12.1°30%51 mm38%17.7 kph
December3.3° / 8.8°33%57 mm33%18.5 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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