Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The introduction of September notes a subtle temperature variation to an enjoyable 18.9°C (66°F) from August's 20.7°C (69.3°F). In Deauville, an average temperature of 12.9°C (55.2°F) is noted during September nights.Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 79%.Rainfall
In Deauville, during September, the rain falls for 13.9 days and regularly aggregates up to 36mm (1.42") of precipitation. In Deauville, during the entire year, the rain falls for 188.8 days and collects up to 580mm (22.83") of precipitation.Snowfall
April through October are months without snowfall in Deauville.Sea temperature
September is the month with the warmest seawater, with an average sea temperature of 18.2°C (64.8°F).Note: When the surface water temperature is 18.2°C (64.8°F), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 21°C (69.8°F).
Daylight
In September, the average length of the day is 12h and 36min.On the first day of the month, sunrise is at 07:16 and sunset at 20:42. On the last day of September, in Deauville, sunrise is at 07:58 and sunset at 19:40 CEST.
Sunshine
In Deauville, the average sunshine in September is 7.5h.UV index
In September, the average daily maximum UV index in Deauville is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Take precautions - Protection against sunburn is recommended. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Deauville in September?
What are the least humid months in Deauville?
What is the average humidity in September in Deauville?
How many days does it rain in September in Deauville?
When it does not snow in Deauville?
When is the sea warmest in Deauville?
What is the sea water temperature in September in Deauville?
What is the average length of the day in September in Deauville?
What time are sunrise and sunset in September in Deauville?
How many hours of sunshine does Deauville have in September?
What is the UV index intensity in September in Deauville?
Average temperature in September
Deauville, France
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is August (20.7°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is August (14.7°C).
The coldest months (with the lowest average low temperature) are January and February (3.8°C).
Average pressure in September
Deauville, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in September
Deauville, France
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is December (24.1km/h).
The calmest month (with the lowest average wind speed) is August (15km/h).
Average humidity in September
Deauville, France
- Average humidity in September: 79%
The months with the highest relative humidity are January and November (84%).
The months with the lowest relative humidity are August and September (79%).
Average rainfall in September
Deauville, France
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Deauville, France
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is January (18.8 days).
The month with the least rainy days is April (13.1 days).
Average snowfall in September
Deauville, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Deauville, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Deauville, France
- Average sea temperature in September: 18.2°C
The best month for swimming (with the highest average sea temperature) is September (18.2°C).
The coldest months (with the lowest average sea temperature) are February and March (8.8°C).
Average daylight in September /
Average sunshine in September
Deauville, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The months with the least sunshine are January, November and December (Average sunshine: 4h and 6min).
Average sunshine days in September
Deauville, France
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is July (13.7 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Deauville, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Deauville, France
- Average cloud cover in September: 40
The months with the most cloud cover are January, November and December (Cloud cover 59).
The months with the least cloud cover are April and July (Cloud cover 39).
Average visibility in September
Deauville, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
Deauville, France
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