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
With September's onset, the weather shows a temperature decrease, transitioning from a warm 23.8°C (74.8°F) in August to a refreshing 18.8°C (65.8°F). Saint-Laurent-de-Trèves records an average nighttime low-temperature of 7.4°C (45.3°F) throughout September.Humidity
In Saint-Laurent-de-Trèves, the average relative humidity in September is 76%.Rainfall
In Saint-Laurent-de-Trèves, during September, the rain falls for 10.3 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, in Saint-Laurent-de-Trèves, there are 138.7 rainfall days, and 635mm (25") of precipitation is accumulated.Snowfall
In Saint-Laurent-de-Trèves, France, snow does not fall in June through September.Daylight
In Saint-Laurent-de-Trèves, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 07:09 and sunset at 20:21. On the last day of the month, sunrise is at 07:42 and sunset at 19:28 CEST.
Sunshine
In September, the average sunshine in Saint-Laurent-de-Trèves is 8.2h.UV index
In Saint-Laurent-de-Trèves, France, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the usual temperature for Saint-Laurent-de-Trèves in September?
What is the average humidity in September in Saint-Laurent-de-Trèves?
How many days does it rain in September in Saint-Laurent-de-Trèves?
When it does not snow in Saint-Laurent-de-Trèves?
Does it snow in Saint-Laurent-de-Trèves in September?
What is the average length of the day in September in Saint-Laurent-de-Trèves?
When is the sunrise / sunset in September in Saint-Laurent-de-Trèves?
How long on average sun shines in September in Saint-Laurent-de-Trèves?
How high is the UV index in September in Saint-Laurent-de-Trèves?
Average temperature in September
Saint-Laurent-de-Trèves, France
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-3.3°C).
Average pressure in September
Saint-Laurent-de-Trèves, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Saint-Laurent-de-Trèves, France
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is February (12.5km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in September
Saint-Laurent-de-Trèves, France
- Average humidity in September: 76%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Saint-Laurent-de-Trèves, France
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is November (104mm).
The driest month (with the least rainfall) is August (31mm).
Average rainfall days in September
Saint-Laurent-de-Trèves, France
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in September
Saint-Laurent-de-Trèves, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (213mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Saint-Laurent-de-Trèves, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint-Laurent-de-Trèves, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in September
Saint-Laurent-de-Trèves, France
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is November (11.4 days).
Average UV index in September
Saint-Laurent-de-Trèves, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in September
Saint-Laurent-de-Trèves, France
- Average cloud cover in September: 40
The month with the most cloud cover is November (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Saint-Laurent-de-Trèves, France
- Average visibility in September: 8km
The month with the highest visibility is August (9km).
The months with the lowest visibility are January, October, November and December (7km).
Saint-Laurent-de-Trèves, France
Weather forecast for your location
2. Allow the app to use your location
