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 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
With the arrival of September, Hesdigneul-lès-Boulogne's average high-temperature registers at a still comfortable 17.8°C (64°F), indicating a subtle variation from the previous month. Consistently, Hesdigneul-lès-Boulogne reports average nighttime temperatures of 13.8°C (56.8°F) during September, a marginal step down from its daytime highs.Humidity
August and September, with an average relative humidity of 79%, are the least humid months.Rainfall
In Hesdigneul-lès-Boulogne, France, in September, during 13.2 rainfall days, 31mm (1.22") of precipitation is typically accumulated. Throughout the year, there are 175.8 rainfall days, and 430mm (16.93") of precipitation is accumulated.Snowfall
In Hesdigneul-lès-Boulogne, France, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 37min.On the first day of September, sunrise is at 07:08 and sunset at 20:38. On the last day of the month, sunrise is at 07:52 and sunset at 19:33 CEST.
Sunshine
The average sunshine in September in Hesdigneul-lès-Boulogne is 7.4h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the temperature in September in Hesdigneul-lès-Boulogne?
What is the least humid month in Hesdigneul-lès-Boulogne?
What is the average humidity in September in Hesdigneul-lès-Boulogne?
How much does it rain in Hesdigneul-lès-Boulogne in September?
When it does not snow in Hesdigneul-lès-Boulogne?
What is the average length of the day in September in Hesdigneul-lès-Boulogne?
What time are sunrise and sunset in September in Hesdigneul-lès-Boulogne?
How long on average sun shines in September in Hesdigneul-lès-Boulogne?
How high is the UV index in September in Hesdigneul-lès-Boulogne?
Average temperature in September
Hesdigneul-lès-Boulogne, France
- Average high temperature in September: 17.8°C
The warmest month (with the highest average high temperature) is August (19.6°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (4.1°C).
Average pressure in September
Hesdigneul-lès-Boulogne, France
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in September
Hesdigneul-lès-Boulogne, France
- Average wind speed in September: 19.8km/h
The windiest month (with the highest average wind speed) is December (27.4km/h).
The calmest month (with the lowest average wind speed) is July (18.1km/h).
Average humidity in September
Hesdigneul-lès-Boulogne, France
- Average humidity in September: 79%
The months with the highest relative humidity are January, June and December (83%).
The months with the lowest relative humidity are August and September (79%).
Average rainfall in September
Hesdigneul-lès-Boulogne, France
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is December (54mm).
The driest months (with the least rainfall) are April and May (19mm).
Average rainfall days in September
Hesdigneul-lès-Boulogne, France
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is November (17.9 days).
The month with the least rainy days is April (11.5 days).
Average snowfall in September
Hesdigneul-lès-Boulogne, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hesdigneul-lès-Boulogne, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Hesdigneul-lès-Boulogne, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 12min).
Average sunshine days in September
Hesdigneul-lès-Boulogne, France
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is April (15.4 days).
The month with the least sunshine days is November (9.2 days).
Average UV index in September
Hesdigneul-lès-Boulogne, 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
Hesdigneul-lès-Boulogne, France
- Average cloud cover in September: 40
The month with the most cloud cover is November (Cloud cover 59).
The months with the least cloud cover are April and August (Cloud cover 38).
Average visibility in September
Hesdigneul-lès-Boulogne, 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).
Hesdigneul-lès-Boulogne, France
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