See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
17°
Mostly Cloudy
Feels Like: 14°
Min: 16°
Max: 19°
The next few hours will be mostly cloudy, with today reaching 19°C and dropping to 16°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
08:15
Sunrise
19:52
Sunset
Moon
Waning Gibbous
20:01
Moonrise
09:00
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 Groix.
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Groix.
View stargazing scoreWeather in Groix today, September 27, 2026
Expect unsettled, showery conditions in Groix on September 27, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Morning plans should assume damp conditions, as rain chances climb toward 58% around 09:00. Cloud cover is also at its densest near 11:00 at roughly 93%.
Temperatures climb from an overnight low near 16°C toward a daytime high of about 19°C. Relative humidity sits between 75% and 97%, reaching its peak around 20:00. Winds stay light, near 5.7 km/h by 14:00, so the day feels still more than breezy.
The second half of the day still looks unsettled, with rain probability around 94% by 12:00. Dense cloud near 100% at 14:00 keeps the feel grey. Visibility holds near 15.5 km, though it can fall to 10.2 km. Expect sunrise at 08:15, sunset at 19:52, and 11 hours 37 minutes of sunlight today overall.
The practical takeaway for Groix on September 27, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 19°C.
Frequently asked questions about weather in Groix
How warm does it get in Groix?
The warmest month in Groix 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 Groix?
The coldest month in Groix 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 Groix?
The wettest month in Groix is November, with an average of 111mm of precipitation.
What is the driest time of year in Groix?
The driest month in Groix is July, with an average of 40mm of precipitation.
Explore more weather forecasts
- Ploemeur, Bretagne
- Paris, Île-de-France
- Lorient, Bretagne
- Marseille, Provence-Alpes-Côte d'Azur
- Lanester, Bretagne
- Lyon, Auvergne-Rhône-Alpes
- Hennebont, Bretagne
- Toulouse, Occitanie
- Quimperlé, Bretagne
- Nice, Provence-Alpes-Côte d'Azur
- Auray, Bretagne
- Nantes, Pays de la Loire
- Concarneau, Bretagne
- Marne La Vallée, Île-de-France
- Vannes, Bretagne
- Strasbourg, Grand Est