What is the weather like in Rennes right now?
It is currently 23°C in Rennes with cloudy. It feels like 22°C, humidity is 74% and the wind is SW 26 km/h.
Today (Saturday) reaches a maximum of 24°C and a minimum of 17°C, with 0.9 mm of rain and 6.5 hours of sunshine. Sunrise is at 07:20 and sunset at 20:54.
Rennes weather tomorrow
Tomorrow (Sunday) the maximum temperature in Rennes is 23°C and the minimum 16°C. Around 0.6 mm of rain is expected with 6.2 hours of sunshine, and the chance of rain is 28%. The data is refreshed several times a day through Open-Meteo.
Rennes weather this week and next week
Over the coming week the average maximum temperature in Rennes sits around 25°C and the average minimum around 16°C. Roughly 2.1 mm of rain is expected, spread across 0 days, with 0 largely sunny days.
The warmest day in the 14 day forecast for Rennes is Wednesday 9 Sept at 27°C. The coldest night falls on Friday 11 Sept at 12°C. Click any day for hourly detail.
Rain, sunshine and UV in Rennes
A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Rennes is 6 — high enough to warrant sun protection in the middle of the day.
How reliable is a 14 day forecast?
The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.
Forecast for Rennes last updated: 29 August 2026 at 14:25. See also all France forecasts and the European weather map.