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
Weather in September
Temperature
The start of September involves a subtle temperature drop, shifting from a pleasant 22.4°C (72.3°F) in August to a comfortable 18.2°C (64.8°F). Lassan observes an average low-temperature of 12.3°C (54.1°F) during September.Humidity
In Lassan, the average relative humidity in September is 76%.Rainfall
In Lassan, in September, during 12.2 rainfall days, 32mm (1.26") of precipitation is typically accumulated. In Lassan, Germany, during the entire year, the rain falls for 151.9 days and collects up to 396mm (15.59") of precipitation.Snowfall
May through October are months without snowfall.Sea temperature
In Lassan, Germany, in September, the average water temperature is 17.3°C (63.1°F).Note: Swimming is not a pleasurable activity for the majority in water at 17.3°C (63.1°F). Breathing control gets harder as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 06:13 and sunset at 19:54. On the last day of September, in Lassan, sunrise is at 07:05 and sunset at 18:43 CEST.
Sunshine
In Lassan, the average sunshine in September is 8.6h.UV index
In Lassan, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 suggests this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What are the temperatures in Lassan in September?
What is the average humidity in September in Lassan?
How much does it rain in Lassan in September?
When it does not snow in Lassan?
What is the sea water temperature in September in Lassan?
How many hours of daylight does Lassan have in September?
When is the sunrise / sunset in September in Lassan?
How long on average sun shines in September in Lassan?
How high is the UV index in September in Lassan?
Average temperature in September
Lassan, Germany
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (2.1°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).
Average pressure in September
Lassan, 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 (1013mbar).
Average wind speed in September
Lassan, Germany
- Average wind speed in September: 15.8km/h
The windiest month (with the highest average wind speed) is December (20km/h).
The calmest month (with the lowest average wind speed) is August (14.1km/h).
Average humidity in September
Lassan, Germany
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Lassan, Germany
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Lassan, Germany
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in September
Lassan, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Lassan, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Lassan, Germany
- Average sea temperature in September: 17.3°C
The best month for swimming (with the highest average sea temperature) is August (18.8°C).
The coldest months (with the lowest average sea temperature) are January, February and March (2.8°C).
Average daylight in September /
Average sunshine in September
Lassan, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 8h and 4min
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
Lassan, Germany
- Average sunshine days in September: 13 days
The month with the most sunshine days is April (18.5 days).
The month with the least sunshine days is August (11.5 days).
Average UV index in September
Lassan, 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
Lassan, Germany
- Average cloud cover in September: 38
The months with the most cloud cover are January and December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Lassan, Germany
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
Lassan, Germany
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