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
September brings a slight decrease in temperature, down from a warm 23.5°C (74.3°F) in August to a refreshing 19.5°C (67.1°F). In the month of September, Heillecourt's average low-temperature falls to a frosty 9.7°C (49.5°F).Humidity
The average relative humidity in September in Heillecourt is 79%.Rainfall
In Heillecourt, France, in September, it is raining for 11.7 days, with typically 33mm (1.3") of accumulated precipitation. In Heillecourt, during the entire year, the rain falls for 179 days and collects up to 518mm (20.39") of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Heillecourt is 12h and 35min.On the first day of the month, sunrise is at 06:53 and sunset at 20:17. On the last day of September, in Heillecourt, sunrise is at 07:33 and sunset at 19:16 CEST.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What are September temperatures in Heillecourt?
What is the average humidity in September in Heillecourt?
How many days does it rain in September in Heillecourt?
When it does not snow in Heillecourt?
What is the average length of the day in September in Heillecourt?
When are sunrise and sunset in September in Heillecourt?
How many hours of sunshine does Heillecourt have in September?
What is the UV index reading in September in Heillecourt?
Average temperature in September
Heillecourt, France
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (3.7°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-0.4°C).
Average pressure in September
Heillecourt, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is November (1014.7mbar).
Average wind speed in September
Heillecourt, France
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in September
Heillecourt, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Heillecourt, France
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is June (62mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in September
Heillecourt, France
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in September
Heillecourt, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (38mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Heillecourt, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Heillecourt, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Heillecourt, France
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in September
Heillecourt, 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, November and December (UV index 2).
Average cloud cover in September
Heillecourt, France
- Average cloud cover in September: 35
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Heillecourt, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, October, November and December (8km).
Heillecourt, France
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