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
September
Weather in September
Temperature
Étretat registers an average high-temperature of a still enjoyable 17.9°C (64.2°F) with the arrival of September, showing minor deviation from the preceding month. In Étretat, the nightly September temperatures experience a slight descent from daily highs to an average low of 14.6°C (58.3°F).Humidity
With an average relative humidity of 78%, September is the least humid month.Rainfall
In Étretat, France, during September, the rain falls for 14 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, in Étretat, France, there are 185.9 rainfall days, and 521mm (20.51") of precipitation is accumulated.Snowfall
In Étretat, snow does not fall in May through November.Sea temperature
The month with the warmest seawater is September, with an average sea temperature of 17.8°C (64°F).Note: The majority of people do not enjoy swimming in 17.8°C (64°F). The difficulty in controlling breathing escalates as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Étretat, the average length of the day in September is 12h and 36min.On the first day of September, sunrise is at 07:15 and sunset at 20:42. On the last day of the month, sunrise is at 07:58 and sunset at 19:39 CEST.
Sunshine
The average sunshine in September in Étretat is 7.3h.UV index
In Étretat, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Étretat in September?
What is the least humid month in Étretat?
What is the average humidity in September in Étretat?
How many days does it rain in September in Étretat?
When it does not snow in Étretat?
What is the month with the warmest sea water in Étretat?
How cold is the water in September in Étretat?
How many hours of daylight does Étretat have in September?
When are sunrise and sunset in September in Étretat?
How long on average sun shines in September in Étretat?
What is the UV index intensity in September in Étretat?
Average temperature in September
Étretat, France
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The months with the lowest average high temperature are January and February (8.1°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (5.2°C).
Average pressure in September
Étretat, 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 (1012.2mbar).
Average wind speed in September
Étretat, France
- Average wind speed in September: 20.2km/h
The windiest month (with the highest average wind speed) is December (29.2km/h).
The calmest months (with the lowest average wind speed) are July and August (18km/h).
Average humidity in September
Étretat, France
- Average humidity in September: 78%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is September (78%).
Average rainfall in September
Étretat, France
- Average rainfall in September: 37mm
The wettest months (with the highest rainfall) are November and December (58mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Étretat, France
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is April (12.6 days).
Average snowfall in September
Étretat, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Étretat, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Étretat, France
- Average sea temperature in September: 17.8°C
The best month for swimming (with the highest average sea temperature) is September (17.8°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in September /
Average sunshine in September
Étretat, 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 12min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days in September
Étretat, France
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is December (8.9 days).
Average UV index in September
Étretat, 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
Étretat, France
- Average cloud cover in September: 42
The months with the most cloud cover are November and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Étretat, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
