September weather forecastRettel, France
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Rettel, France, with an average temperature ranging between min 9.5°C (49.1°F) and max 19.2°C (66.6°F).Temperature
Rettel's progression into September involves a gentle drop in the average high-temperature, from a warm 23.1°C (73.6°F) in August to a refreshing 19.2°C (66.6°F). In the month of September, Rettel experiences an average low-temperature of 9.5°C (49.1°F).Humidity
In September, the average relative humidity in Rettel is 79%.Rainfall
In Rettel, in September, during 11.7 rainfall days, 40mm (1.57") of precipitation is typically accumulated. In Rettel, during the entire year, the rain falls for 185.5 days and collects up to 593mm (23.35") of precipitation.Snowfall
In Rettel, snow does not fall in April through September.Daylight
The average length of the day in September in Rettel is 12h and 36min.On the first day of the month, sunrise is at 06:51 and sunset at 20:17. On the last day of September, in Rettel, sunrise is at 07:33 and sunset at 19:15 CEST.
Sunshine
In Rettel, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index in Rettel, France, is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rettel, France
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 9.5°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 (-0.7°C).
Average pressure in September
Rettel, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in September
Rettel, France
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Rettel, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Rettel, France
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Rettel, France
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in September
Rettel, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (55mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Rettel, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 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
Rettel, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Rettel, France
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Rettel, France
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Rettel, France
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Rettel, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
