September weather forecastBrest, Germany
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Brest, Germany, with an average temperature fluctuating between 18.2°C (64.8°F) and 10.7°C (51.3°F).Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's agreeable 22.3°C (72.1°F) to a refreshing 18.2°C (64.8°F). Brest witnesses an average low-temperature of 10.7°C (51.3°F) throughout the month of September.Humidity
In September, the average relative humidity in Brest, Germany, is 83%.Rainfall
In Brest, Germany, during September, the rain falls for 18.2 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, there are 204.7 rainfall days, and 582mm (22.91") of precipitation is accumulated.Snowfall
In Brest, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 06:32 and sunset at 20:11. On the last day of the month, sunrise is at 07:23 and sunset at 19:01 CEST.
Sunshine
In September, the average sunshine in Brest is 7.5h.UV index
In Brest, Germany, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brest, Germany
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (3.1°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-0.5°C).
Average pressure in September
Brest, Germany
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is September (1016.3mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).
Average wind speed in September
Brest, Germany
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest month (with the lowest average wind speed) is August (12km/h).
Average humidity in September
Brest, Germany
- Average humidity in September: 83%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Brest, Germany
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (68mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Brest, Germany
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (12.2 days).
Average snowfall in September
Brest, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (46mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Brest, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.2 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
Brest, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Brest, Germany
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is April (12.9 days).
The month with the least sunshine days is July (6.7 days).
Average UV index in September
Brest, Germany
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Brest, Germany
- Average cloud cover in September: 49
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Brest, Germany
- 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).
