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
September
Weather in September
Temperature
The transition into September notes an average high-temperature of a still refreshing 17.8°C (64°F), revealing a mild distinction from the 19.6°C (67.3°F) in August. During September, Offrethun perceives a slight decrease in temperature from daytime highs, settling at an average low of 13.8°C (56.8°F).Humidity
The months with the lowest humidity in Offrethun are August and September, with an average relative humidity of 79%.Rainfall
In Offrethun, France, in September, it is raining for 13.2 days, with typically 31mm (1.22") of accumulated precipitation. In Offrethun, during the entire year, the rain falls for 175.8 days and collects up to 430mm (16.93") of precipitation.Snowfall
In Offrethun, snow does not fall in April through October.Daylight
In Offrethun, France, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 07:07 and sunset at 20:38. On the last day of the month, sunrise is at 07:52 and sunset at 19:33 CEST.
Sunshine
In September, the average sunshine is 7.4h.UV index
In Offrethun, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 in September translates into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Offrethun in September?
What is the least humid month in Offrethun?
What is the average humidity in September in Offrethun?
How much does it rain in Offrethun in September?
When it does not snow in Offrethun?
What is the average length of the day in September in Offrethun?
What time are sunrise and sunset in September in Offrethun?
How many hours of sunshine does Offrethun have in September?
How high is the UV index in September in Offrethun?
Average temperature in September
Offrethun, 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
Offrethun, 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
Offrethun, 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
Offrethun, 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
Offrethun, 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
Offrethun, 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
Offrethun, 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
Offrethun, 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
Offrethun, 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 0min).
- 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
Offrethun, 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
Offrethun, 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
Offrethun, 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
Offrethun, 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).
