September weather forecastHérin, France
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Hérin, France, with temperature in the range of an average high of 19.5°C (67.1°F) and an average low of 10.8°C (51.4°F).Temperature
Hérin's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 23.2°C (73.8°F) in August to a refreshing 19.5°C (67.1°F). An average temperature of 10.8°C (51.4°F) is recorded in Hérin during the nights in September.Humidity
In Hérin, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 29mm (1.14") of precipitation.Snowfall
In Hérin, snow does not fall in April through October.Daylight
In Hérin, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 07:01 and sunset at 20:30. On the last day of the month, sunrise is at 07:45 and sunset at 19:26 CEST.
Sunshine
The average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hérin, France
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).
Average pressure in September
Hérin, France
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in September
Hérin, France
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity in September
Hérin, France
- Average humidity in September: 78%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Hérin, France
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (67mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in September
Hérin, France
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is September (13.5 days).
Average snowfall in September
Hérin, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hérin, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4 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
Hérin, France
- Average daylight in September: 12h and 36min
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 24min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Hérin, France
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is September (12.7 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Hérin, 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
Hérin, France
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in September
Hérin, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
