September weather forecastUmmanz, Germany
September
Weather in September
September, the first month of the autumn in Ummanz, is still a comfortable month, with an average temperature fluctuating between 12.9°C (55.2°F) and 17.7°C (63.9°F).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from an agreeable 21.3°C (70.3°F) in August to a comfortable 17.7°C (63.9°F). Nights in September exhibit a minor reduction to an average low temperature of 12.9°C (55.2°F).Humidity
The average relative humidity in September in Ummanz is 77%.Rainfall
In Ummanz, during September, the rain falls for 14.3 days and regularly aggregates up to 32mm (1.26") of precipitation. In Ummanz, during the entire year, the rain falls for 171.6 days and collects up to 411mm (16.18") of precipitation.Snowfall
In Ummanz, snow does not fall in May through October.Sea temperature
In Ummanz, the average seawater temperature in September is 16.8°C (62.2°F).Note: Swimming in water with a temperature of 16.8°C (62.2°F) is not a pleasurable experience for the majority. As the temperature falls below 21°C (69.8°F), it becomes increasingly hard to control one's breathing.
Daylight
In Ummanz, the average length of the day in September is 12h and 43min.On the first day of the month, sunrise is at 06:15 and sunset at 19:58. On the last day of September, in Ummanz, Germany, sunrise is at 07:08 and sunset at 18:45 CEST.
Sunshine
In Ummanz, Germany, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, Germany
- Average daylight in September: 12h and 42min
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 30min
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 6min).
Average sunshine days in September
Ummanz, 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
Ummanz, 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
Ummanz, 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
Ummanz, 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).





