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 sea temperature 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 advent of September brings a slight shift in average high-temperature, moving from a pleasant 21.3°C (70.3°F) in August to a comfortable 17.7°C (63.9°F). Ralswiek, during September nights, experiences a subtle shift to a low average of 12.9°C (55.2°F) from the day's heat.Humidity
In September, the average relative humidity is 77%.Rainfall
In Ralswiek, in September, during 14.3 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, in Ralswiek, Germany, there are 171.6 rainfall days, and 411mm (16.18") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Sea temperature
In September, the average sea temperature is 16.8°C (62.2°F).Note: For most, swimming in 16.8°C (62.2°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day is 12h and 43min.On the first day of the month, sunrise is at 06:14 and sunset at 19:57. On the last day of September, sunrise is at 07:07 and sunset at 18:44 CEST.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Ralswiek?
What is the average humidity in September in Ralswiek?
How much does it rain in Ralswiek in September?
When it does not snow in Ralswiek?
How cold is the water in September in Ralswiek?
How many hours of daylight does Ralswiek have in September?
What time are sunrise and sunset in September in Ralswiek?
How many hours of sunshine does Ralswiek have in September?
How high is the UV index in September in Ralswiek?
Average temperature in September
Ralswiek, Germany
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is February (0.1°C).
Average pressure in September
Ralswiek, Germany
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is September (1016mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in September
Ralswiek, Germany
- Average wind speed in September: 18.3km/h
The windiest month (with the highest average wind speed) is December (23.9km/h).
The calmest month (with the lowest average wind speed) is August (16.5km/h).
Average humidity in September
Ralswiek, Germany
- Average humidity in September: 77%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Ralswiek, Germany
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is August (61mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Ralswiek, Germany
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is August (18.2 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in September
Ralswiek, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (32mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ralswiek, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Ralswiek, Germany
- Average sea temperature in September: 16.8°C
The best month for swimming (with the highest average sea temperature) is August (17.8°C).
The coldest month (with the lowest average sea temperature) is February (2.6°C).
Average daylight in September /
Average sunshine in September
Ralswiek, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Ralswiek, Germany
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is April (16.3 days).
The month with the least sunshine days is August (9.1 days).
Average UV index in September
Ralswiek, 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
Ralswiek, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Ralswiek, Germany
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
