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
19:41
Sunset
Moon
Waning Gibbous
21:20
Moonrise
12:55
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Saint-Jean-de-Monts.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Saint-Jean-de-Monts.
View stargazing scoreWeather in Saint-Jean-de-Monts today, September 30, 2026
Expect unsettled, showery conditions in Saint-Jean-de-Monts on September 30, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. The morning carries the wetter risk, with rain chances near 66% and the highest odds around 07:00. Cloud is also thick early on, peaking near 85% around 11:00.
Temperatures climb from an overnight low near 20°C toward a daytime high of about 23°C. Moisture in the air spans 66%-87%, with the highest values around 08:00. Expect gentle winds, highest near 17:00 at 5.9 km/h.
Afternoon showers stay in play, peaking near 24% around 13:00. Skies remain cluttered, with cover about 91% by 14:00. Visibility holds near 15.5 km, though it can fall to 8.1 km. The sun rises at 08:13 and sets at 19:41, for a total of 11 hours 27 minutes of sunlight today.
In short, treat September 30, 2026 in Saint-Jean-de-Monts as a damp day: pack covers, watch the wetter hours, and expect a high near 23°C.
Frequently asked questions about weather in Saint-Jean-de-Monts
How warm does it get in Saint-Jean-de-Monts?
The warmest month in Saint-Jean-de-Monts is August, with average high temperatures of 23°C. The average temperature during this period is around 20°C.
How cold does it get in Saint-Jean-de-Monts?
The coldest month in Saint-Jean-de-Monts 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 Saint-Jean-de-Monts?
The wettest month in Saint-Jean-de-Monts is November, with an average of 92mm of precipitation.
What is the driest time of year in Saint-Jean-de-Monts?
The driest month in Saint-Jean-de-Monts is July, with an average of 33mm of precipitation.
Explore more weather forecasts
- Challans, Pays de la Loire
- Paris, Île-de-France
- Pornic, Pays de la Loire
- Marseille, Provence-Alpes-Côte d'Azur
- Olonne-sur-Mer, Pays de la Loire
- Lyon, Auvergne-Rhône-Alpes
- Les Sables-d'Olonne, Pays de la Loire
- Toulouse, Occitanie
- Château-d'Olonne, Pays de la Loire
- Nice, Provence-Alpes-Côte d'Azur
- La Roche-sur-Yon, Pays de la Loire
- Nantes, Pays de la Loire
- Saint-Brevin-les-Pins, Pays de la Loire
- Marne La Vallée, Île-de-France
- Couëron, Pays de la Loire
- Strasbourg, Grand Est