See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
08:13
Sunrise
19:53
Sunset
Moon
Full Moon
19:42
Moonrise
07:44
Moonset
Daily Forecast
Today
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Air Quality Data Available
Upgrade to access real-time air quality data for La Roche-Derrien.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for La Roche-Derrien.
View stargazing scoreWeather in La Roche-Derrien tomorrow, September 27, 2026
Rain features in La Roche-Derrien on September 27, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Expect a grey start, with morning cloud around 100% by 06:00. Outdoor plans early on should not rely on bright skies.
Temperatures climb from an overnight low near 12°C toward a daytime high of about 20°C. The air stays humid, with relative humidity between 81% and 95% and the peak around 22:00. A lighter breeze peaks around 15:00 near 5.7 km/h.
The second half of the day still looks unsettled, with rain probability around 94% by 16:00. Dense cloud near 100% at 12:00 keeps the feel grey. Horizontal visibility sits around 22.9 km, briefly nearer 6.3 km. The sun rises at 08:15 and sets at 19:51, for a total of 11 hours 36 minutes of sunlight today.
The practical takeaway for La Roche-Derrien on September 27, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 20°C.
Frequently asked questions about weather in La Roche-Derrien
How warm does it get in La Roche-Derrien?
The warmest month in La Roche-Derrien is August, with average high temperatures of 21°C. The average temperature during this period is around 18°C.
How cold does it get in La Roche-Derrien?
The coldest month in La Roche-Derrien is January, with average low temperatures of 6°C. The average temperature during this period is around 8°C.
What is the wettest time of year in La Roche-Derrien?
The wettest month in La Roche-Derrien is December, with an average of 93mm of precipitation.
What is the driest time of year in La Roche-Derrien?
The driest month in La Roche-Derrien is July, with an average of 37mm of precipitation.
Explore more weather forecasts
- Lannion, Bretagne
- Paris, Île-de-France
- Plérin, Bretagne
- Marseille, Provence-Alpes-Côte d'Azur
- Saint-Brieuc, Bretagne
- Lyon, Auvergne-Rhône-Alpes
- Ploufragan, Bretagne
- Toulouse, Occitanie
- Morlaix, Bretagne
- Nice, Provence-Alpes-Côte d'Azur
- Lamballe, Bretagne
- Nantes, Pays de la Loire
- Loudéac, Bretagne
- Marne La Vallée, Île-de-France
- Pontivy, Bretagne
- Strasbourg, Grand Est
