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
In September, Keitum experiences a minor shift in meteorological conditions with average high-temperatures marked at a still refreshing 16.4°C (61.5°F), closely mirroring the climate in August. Keitum notes a steady average temperature of 14.4°C (57.9°F) during the nights of September.Humidity
The average relative humidity in September in Keitum is 79%.Rainfall
In Keitum, in September, during 18.5 rainfall days, 69mm (2.72") of precipitation is typically accumulated. Throughout the year, there are 196.9 rainfall days, and 600mm (23.62") of precipitation is accumulated.Snowfall
May through November are months without snowfall in Keitum.Daylight
The average length of the day in September is 12h and 43min.On the first day of September, sunrise is at 06:34 and sunset at 20:18. On the last day of the month, sunrise is at 07:28 and sunset at 19:04 CEST.
Sunshine
In Keitum, the average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index in Keitum is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the temperature in September in Keitum?
What is the average humidity in September in Keitum?
How much does it rain in Keitum in September?
When it does not snow in Keitum?
What is the average length of the day in September in Keitum?
What time are sunrise and sunset in September in Keitum?
How many hours of sunshine does Keitum have in September?
How high is the UV index in September in Keitum?
Average temperature in September
Keitum, Germany
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is August (18.6°C).
The month with the lowest average high temperature is February (3.7°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is August (16.4°C).
The coldest month (with the lowest average low temperature) is February (1.9°C).
Average pressure in September
Keitum, Germany
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is May (1015.8mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Keitum, Germany
- Average wind speed in September: 26.8km/h
The windiest month (with the highest average wind speed) is December (33.6km/h).
The calmest month (with the lowest average wind speed) is July (23km/h).
Average humidity in September
Keitum, Germany
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Keitum, Germany
- Average rainfall in September: 69mm
The wettest month (with the highest rainfall) is August (75mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Keitum, Germany
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is October (20.5 days).
The month with the least rainy days is February (11.7 days).
Average snowfall in September
Keitum, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (21mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Keitum, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 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
Keitum, 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 18min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The months with the least sunshine are January, February and November (Average sunshine: 3h and 36min).
Average sunshine days in September
Keitum, Germany
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is March (15.3 days).
The month with the least sunshine days is November (7.4 days).
Average UV index in September
Keitum, Germany
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Keitum, Germany
- Average cloud cover in September: 49
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 40).
Average visibility in September
Keitum, 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).
Keitum, Germany
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