September weather forecastNice, France
September
Weather in September
As autumn sets in, September offers weather that balances between the warmth of summer and the crispness of fall. It's a perfect month for those wishing to skip the summer crowds and yet enjoy the sun. This month experiences moderate temperatures from 16.9°C (62.4°F) to 21.3°C (70.3°F). The azure sea still holds a warm 22.3°C (72.1°F) despite the decreasing daylight hours to 12.5 hours. The Mediterranean vibe continues to permeate the city's atmospherics.Temperature
Nice experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 24.8°C (76.6°F) in August to an agreeable 21.3°C (70.3°F). Nice's nighttime temperatures in September see a subtle dip to an average of 16.9°C (62.4°F).Humidity
The average relative humidity in September is 70%.Rainfall
In Nice, in September, it is raining for 11.9 days, with typically 36mm (1.42") of accumulated precipitation. In Nice, France, during the entire year, the rain falls for 149.2 days and collects up to 639mm (25.16") of precipitation.Snowfall
In Nice, snow does not fall in April through December.Sea temperature
In Nice, France, in September, the average water temperature is 22.3°C (72.1°F).Note: Think about diving into 22.3°C (72.1°F) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 25°C (77°F) and 28°C (82.4°F).
Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 06:55 and sunset at 20:06. On the last day of the month, sunrise is at 07:27 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September in Nice is 10h.UV index
The average daily maximum UV index in September in Nice is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nice, France
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The months with the lowest average high temperature are January and February (9.4°C).
- Average low temperature in September: 16.9°C
The month with the highest average low temperature is August (20°C).
The coldest month (with the lowest average low temperature) is February (5.5°C).
Average pressure in September
Nice, France
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is April (1013.9mbar).
Average wind speed in September
Nice, France
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is March (13.5km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Nice, France
- Average humidity in September: 70%
The months with the highest relative humidity are May and June (73%).
The months with the lowest relative humidity are January and December (68%).
Average rainfall in September
Nice, France
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (125mm).
The driest month (with the least rainfall) is August (30mm).
Average rainfall days in September
Nice, France
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is December (9.6 days).
Average snowfall in September
Nice, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Nice, France
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average sea temperature in September
Nice, France
- Average sea temperature in September: 22.3°C
The best month for swimming (with the highest average sea temperature) is August (23.7°C).
The coldest month (with the lowest average sea temperature) is February (13.1°C).
Average daylight in September /
Average sunshine in September
Nice, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in September
Nice, France
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (9 days).
Average UV index in September
Nice, France
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Nice, France
- Average cloud cover in September: 16
The months with the most cloud cover are February and November (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Nice, France
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
