September weather forecastHallencourt, France
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Hallencourt, France, with an average temperature fluctuating between 11.6°C (52.9°F) and 18.8°C (65.8°F).Temperature
September's arrival shows an average high-temperature of a comfortable 18.8°C (65.8°F), hardly different from the previous month. Hallencourt records an average nighttime low of 11.6°C (52.9°F) in September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Hallencourt, France, in September, it is raining for 13.6 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, in Hallencourt, there are 190.2 rainfall days, and 547mm (21.54") of precipitation is accumulated.Snowfall
In Hallencourt, snow does not fall in April through October.Daylight
In Hallencourt, France, the average length of the day in September is 12h and 37min.On the first day of September in Hallencourt, France, sunrise is at 07:08 and sunset at 20:36. On the last day of the month, sunrise is at 07:51 and sunset at 19:32 CEST.
Sunshine
In Hallencourt, the average sunshine in September is 7.3h.UV index
In Hallencourt, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hallencourt, France
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Hallencourt, France
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in September
Hallencourt, France
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).
Average humidity in September
Hallencourt, France
- Average humidity in September: 80%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Hallencourt, France
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Hallencourt, France
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is April (13.5 days).
Average snowfall in September
Hallencourt, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hallencourt, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.2 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
Hallencourt, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Hallencourt, France
- Average sunshine days in September: 13.5 days
The months with the most sunshine days are March and April (13.7 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in September
Hallencourt, 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
Hallencourt, France
- Average cloud cover in September: 42
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 August (Cloud cover 40).
Average visibility in September
Hallencourt, 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).
