September weather forecastUmmerstadt, Germany
September
Weather in September
September, the first month of the autumn in Ummerstadt, is also an enjoyable month, with an average temperature varying between 18.3°C (64.9°F) and 8.9°C (48°F).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a pleasant 22.8°C (73°F) in August to an enjoyable 18.3°C (64.9°F). During the month of September, an average temperature of 8.9°C (48°F) is noted during the nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Ummerstadt, during September, the rain falls for 13.3 days and regularly aggregates up to 35mm (1.38") of precipitation. In Ummerstadt, during the entire year, the rain falls for 169.3 days and collects up to 465mm (18.31") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Ummerstadt, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 06:32 and sunset at 20:00. On the last day of the month, sunrise is at 07:16 and sunset at 18:57 CEST.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ummerstadt, Germany
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is July (22.9°C).
The month with the lowest average high temperature is January (0.9°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in September
Ummerstadt, Germany
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1014.9mbar).
Average wind speed in September
Ummerstadt, Germany
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is December (13.3km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Ummerstadt, Germany
- Average humidity in September: 79%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Ummerstadt, Germany
- Average rainfall in September: 35mm
The wettest months (with the highest rainfall) are June and August (53mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Ummerstadt, Germany
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (10 days).
Average snowfall in September
Ummerstadt, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (97mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Ummerstadt, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ummerstadt, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in September
Ummerstadt, Germany
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Ummerstadt, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Ummerstadt, Germany
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Ummerstadt, Germany
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, October and December (7km).
