September weather forecastFrankfurt, Germany
September
Weather in September
The arrival of September signifies the onset of the Autumn season in Frankfurt. During September, daylight reduces to 12.6 hours and temperatures showcase a substantial drop from 10.5°C (50.9°F) to 20.3°C (68.5°F). Sunshine hours also decrease to 5.2 hours a day, indicating the end of long summer days. Despite the cool down from the summer heat, pleasant weather conditions still persist, making it a favourable time to explore the changing hues of the city.Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a moderately hot 25.1°C (77.2°F) in August to an agreeable 20.3°C (68.5°F). During September, the average low-temperature is a fresh 10.5°C (50.9°F).Rainfall
In Frankfurt, during September, the rain falls for 12 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, there are 169 rainfall days, and 629mm (24.76") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:40 and sunset at 20:09. On the last day of September, sunrise is at 07:24 and sunset at 19:05 CEST.
Sunshine
The average sunshine in September is 5.2h.UV index
In Frankfurt, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Frankfurt, Germany
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is July (25.5°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is July (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (-1.1°C).
Average rainfall in September
Frankfurt, Germany
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is July (64.7mm).
The driest month (with the least rainfall) is February (40.9mm).
Average rainfall days in September
Frankfurt, Germany
- Average rainfall days in September: 12 days
The months with the highest number of rainy days are January and December (16 days).
The months with the least rainy days are September and October (12 days).
Average daylight in September /
Average sunshine in September
Frankfurt, 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: 5h and 12min
The month with the most sunshine is July (Average sunshine: 7h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average UV index in September
Frankfurt, Germany
- Average UV index in September: 4
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).
