Castagniers Weather in September

During September, Castagniers experiences high daytime temperatures of 23°C (73°F) and cooler nights around 15°C (59°F). Expect quite a bit of rainfall. Around 88 mm (3.5 in) is typical.

Rainfall in Castagniers in September

On average, there are about 7 days with rain during this month, averaging 88 mm (3.5 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Castagniers in September

The perfect temperature in Castagniers in September makes it a solid month to visit, with 23°C (73°F) during the day and 15°C (59°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Castagniers in September

There are approximately 226 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Castagniers in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water temperature is 22°C (72°F), which most people find very comfortable. A good month for swimming and water sports.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Castagniers.

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• January
• February
• March
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• May
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• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Castagniers's climate page.

Castagniers Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 23°C (73°F)  

Water Temperature 22°C (72°F) *  

Chance of Rain 23%  

Precipitation 88 mm (3.5 in)  

Rainy days 7 days  

Humidity 76% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 226 hours *  

Percentage Sunshine 66% *  

* Data from: Monaco, France (15 KM, 9 Miles).

What to Wear in Castagniers in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 22°C (72°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Castagniers in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Castagniers's climate page.

More climate data for Castagniers

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Castagniers climate overview or explore weather in France.