September weather forecastKoserow, Germany
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Koserow, Germany, with an average temperature fluctuating between 17.7°C (63.9°F) and 13.4°C (56.1°F).Temperature
Koserow's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's agreeable 21.4°C (70.5°F) to a refreshing 17.7°C (63.9°F). Koserow's nocturnal average in September closely mirrors its daytime temperatures, settling at a mild 13.4°C (56.1°F).Humidity
The average relative humidity in September is 76%.Rainfall
In Koserow, in September, during 10.1 rainfall days, 19mm (0.75") of precipitation is typically accumulated. In Koserow, during the entire year, the rain falls for 140.2 days and collects up to 279mm (10.98") of precipitation.Snowfall
May through October are months without snowfall in Koserow.Sea temperature
In Koserow, the average seawater temperature in September is 17°C (62.6°F).Note: Swimming in 17°C (62.6°F) does not offer a pleasant experience for most individuals. The act of controlling one's breathing becomes progressively difficult as the water temperature goes under 21°C (69.8°F).
Daylight
In Koserow, the average length of the day in September is 12h and 42min.On the first day of September in Koserow, sunrise is at 06:13 and sunset at 19:54. On the last day of the month, sunrise is at 07:05 and sunset at 18:42 CEST.
Sunshine
In Koserow, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September in Koserow is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. To guard against the harmful effects of the Sun, minimize exposure during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koserow, Germany
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is August (21.4°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is August (16.6°C).
The coldest months (with the lowest average low temperature) are January and February (-0.3°C).
Average pressure in September
Koserow, Germany
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is September (1016.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Koserow, Germany
- Average wind speed in September: 18.9km/h
The windiest month (with the highest average wind speed) is December (24km/h).
The calmest month (with the lowest average wind speed) is August (16.7km/h).
Average humidity in September
Koserow, Germany
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Koserow, Germany
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is August (40mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Koserow, Germany
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Koserow, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (18mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Koserow, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Koserow, Germany
- Average sea temperature in September: 17°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is March (2.4°C).
Average daylight in September /
Average sunshine in September
Koserow, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Koserow, Germany
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is April (17.7 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Koserow, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Koserow, Germany
- Average cloud cover in September: 38
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Koserow, Germany
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).





