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
September
Weather in September
Temperature
A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 23.3°C (73.9°F) in August to an enjoyable 18.5°C (65.3°F). In Sempt, in September, the average low-temperature is a chilly 8.9°C (48°F).Humidity
In September, the average relative humidity is 83%.Rainfall
In Sempt, in September, it is raining for 12.5 days, with typically 41mm (1.61") of accumulated precipitation. In Sempt, during the entire year, the rain falls for 152.4 days and collects up to 622mm (24.49") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 06:30 and sunset at 19:53. On the last day of the month, sunrise is at 07:10 and sunset at 18:53 CEST.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Sempt, 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 radiation for the average person.Note: The UV index of 4 during September translates into the following guidance:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sempt in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Sempt, Germany
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).
Average pressure in September
Sempt, Germany
- Average pressure in September: 1018.7mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Sempt, Germany
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is March (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in September
Sempt, Germany
- Average humidity in September: 83%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Sempt, Germany
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is July (80mm).
The driest month (with the least rainfall) is November (22mm).
Average rainfall days in September
Sempt, Germany
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in September
Sempt, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (185mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sempt, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sempt, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Sempt, Germany
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Sempt, Germany
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Sempt, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Sempt, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The month with the lowest visibility is January (7km).
