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
Saint-Brais records a mild change in average high-temperature during September, easing from an agreeable 22.8°C (73°F) in August to a comfortable 18.5°C (65.3°F). September brings Saint-Brais a consistent average low-temperature of 8.5°C (47.3°F).Humidity
In September, the average relative humidity in Saint-Brais, Switzerland, is 83%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.3 days and typically collects 40mm (1.57") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:51 and sunset at 20:11. On the last day of the month, sunrise is at 07:29 and sunset at 19:12 CEST.
Sunshine
In Saint-Brais, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Saint-Brais is 3. A UV Index reading 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 maximum UV index of 3 leads to the following instructions:
Undertake precautions - Guarding against sun damage is counselled. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Saint-Brais in September?
What is the average humidity in September in Saint-Brais?
What is the driest month in Saint-Brais?
How many days does it rain in September in Saint-Brais?
When it does not snow in Saint-Brais?
Does it snow in Saint-Brais in September?
What is the average length of the day in September in Saint-Brais?
When are sunrise and sunset in September in Saint-Brais?
How long on average sun shines in September in Saint-Brais?
What is the UV index reading in September in Saint-Brais?
Average temperature in September
Saint-Brais, Switzerland
- Average high temperature in September: 18.5°C
The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 8.5°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in September
Saint-Brais, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in September
Saint-Brais, Switzerland
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).
Average humidity in September
Saint-Brais, Switzerland
- Average humidity in September: 83%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (80%).
Average rainfall in September
Saint-Brais, Switzerland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is June (94mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in September
Saint-Brais, Switzerland
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is June (20.9 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in September
Saint-Brais, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (170mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Saint-Brais, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.2 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-Brais, Switzerland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in September
Saint-Brais, Switzerland
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is June (6.7 days).
Average UV index in September
Saint-Brais, Switzerland
- 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, October, November and December (UV index 2).
Average cloud cover in September
Saint-Brais, Switzerland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Saint-Brais, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
Saint-Brais, Switzerland
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