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
08:10
Sunrise
19:47
Sunset
Moon
Waning Gibbous
19:55
Moonrise
08:55
Moonset
Daily Forecast
Today
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Air Quality Data Available
Upgrade to access real-time air quality data for Guer.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Guer.
View stargazing scoreWeather in Guer today, September 27, 2026
Rain features in Guer on September 27, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. The first half of the day looks overcast, as cloud amounts reach about 100% around 06:00. Brighter weather, if it comes, waits until later.
Temperatures climb from an overnight low near 12°C toward a daytime high of about 23°C. The air stays humid, with relative humidity between 66% and 95% and the peak around 23:00. A lighter breeze peaks around 16:00 near 6.3 km/h.
Afternoon skies stay clogged, peaking close to 100% near 14:00. The grey theme continues rather than clearing out. Visibility holds near 27.3 km, though it can fall to 12.8 km. Expect sunrise at 08:10, sunset at 19:47, and 11 hours 36 minutes of sunlight today overall.
The practical takeaway for Guer on September 27, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 23°C.
Frequently asked questions about weather in Guer
How warm does it get in Guer?
The warmest month in Guer is July, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Guer?
The coldest month in Guer is January, with average low temperatures of 3°C. The average temperature during this period is around 6°C.
What is the wettest time of year in Guer?
The wettest month in Guer is June, with an average of 77mm of precipitation.
What is the driest time of year in Guer?
The driest month in Guer is August, with an average of 41mm of precipitation.
Explore more weather forecasts
- Bruz, Bretagne
- Paris, Île-de-France
- Rennes, Bretagne
- Marseille, Provence-Alpes-Côte d'Azur
- Cesson-Sévigné, Bretagne
- Lyon, Auvergne-Rhône-Alpes
- Vannes, Bretagne
- Toulouse, Occitanie
- Loudéac, Bretagne
- Nice, Provence-Alpes-Côte d'Azur
- Dinan, Bretagne
- Nantes, Pays de la Loire
- Pontivy, Bretagne
- Marne La Vallée, Île-de-France
- Lamballe, Bretagne
- Strasbourg, Grand Est