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 beginning of September brings a minor change in the average high-temperature, shifting from 27.1°C (80.8°F) in August to a still warm 23.6°C (74.5°F). In Saint-Jean-Lasseille, the expected average low-temperature for September is a comfortable 16.3°C (61.3°F).Humidity
In September, the average relative humidity is 66%.Rainfall
In September, in Saint-Jean-Lasseille, the rain falls for 10.1 days. Throughout September, 30mm (1.18") of precipitation is accumulated. In Saint-Jean-Lasseille, during the entire year, the rain falls for 118.2 days and collects up to 414mm (16.3") of precipitation.Snowfall
March through December are months without snowfall in Saint-Jean-Lasseille.Daylight
In Saint-Jean-Lasseille, the average length of the day in September is 12h and 29min.On the first day of September in Saint-Jean-Lasseille, France, sunrise is at 07:14 and sunset at 20:22. On the last day of the month, sunrise is at 07:45 and sunset at 19:31 CEST.
Sunshine
In September, the average sunshine in Saint-Jean-Lasseille is 9.3h.UV index
In Saint-Jean-Lasseille, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Saint-Jean-Lasseille in September?
What is the average humidity in September in Saint-Jean-Lasseille?
How many days does it rain in September in Saint-Jean-Lasseille?
When it does not snow in Saint-Jean-Lasseille?
What is the average length of the day in September in Saint-Jean-Lasseille?
What time are sunrise and sunset in September in Saint-Jean-Lasseille?
How many hours of sunshine does Saint-Jean-Lasseille have in September?
How high is the UV index in September in Saint-Jean-Lasseille?
Average temperature in September
Saint-Jean-Lasseille, France
- Average high temperature in September: 23.6°C
The warmest month (with the highest average high temperature) is July (27.3°C).
The month with the lowest average high temperature is January (10.7°C).
- Average low temperature in September: 16.3°C
The months with the highest average low temperature are July and August (19°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).
Average pressure in September
Saint-Jean-Lasseille, France
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).
Average wind speed in September
Saint-Jean-Lasseille, France
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is August (13km/h).
Average humidity in September
Saint-Jean-Lasseille, France
- Average humidity in September: 66%
The months with the highest relative humidity are November and December (72%).
The month with the lowest relative humidity is July (63%).
Average rainfall in September
Saint-Jean-Lasseille, France
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is April (57mm).
The driest month (with the least rainfall) is December (18mm).
Average rainfall days in September
Saint-Jean-Lasseille, France
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is April (12.8 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in September
Saint-Jean-Lasseille, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Saint-Jean-Lasseille, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Saint-Jean-Lasseille, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in September
Saint-Jean-Lasseille, France
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is December (21.4 days).
The month with the least sunshine days is April (15.4 days).
Average UV index in September
Saint-Jean-Lasseille, France
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Saint-Jean-Lasseille, France
- Average cloud cover in September: 20
The months with the most cloud cover are January and November (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in September
Saint-Jean-Lasseille, France
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
