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
07:42
Sunrise
19:44
Sunset
Moon
Waxing Gibbous
17:24
Moonrise
01:13
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 Saint-Denis.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Saint-Denis.
View stargazing scoreWeather in Saint-Denis tomorrow, September 21, 2026
Expect a mostly clear day in Saint-Denis on September 21, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Expect a grey start, with morning cloud around 100% by 05:00. Outdoor plans early on should not rely on bright skies.
The temperature range runs from about 12°C up to 23°C. Expect humidity between 35% and 92%, most humid near 08:00. Winds stay light, near 2.5 km/h by 16:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 84% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 33.5 km, with poorer spells close to 18.9 km. The sun rises at 07:43 and sets at 19:41, for a total of 11 hours 58 minutes of sunlight today.
Taken together, settled sunshine in Saint-Denis on September 21, 2026 makes outdoor timing easier, with highs near 23°C.
Explore more weather forecasts
- Villetaneuse, Île-de-France
- Paris, Île-de-France
- Stains, Île-de-France
- Marseille, Provence-Alpes-Côte d'Azur
- Villeneuve-la-Garenne, Île-de-France
- Lyon, Auvergne-Rhône-Alpes
- Aubervilliers, Île-de-France
- Toulouse, Occitanie
- La Courneuve, Île-de-France
- Nice, Provence-Alpes-Côte d'Azur
- Épinay-sur-Seine, Île-de-France
- Nantes, Pays de la Loire
- Pierrefitte-sur-Seine, Île-de-France
- Marne La Vallée, Île-de-France
- Saint-Ouen, Île-de-France
- Strasbourg, Grand Est
