September weather forecastHeilsbronn, Germany
September
Weather in September
September, the first month of the autumn in Heilsbronn, is still a refreshing month, with an average temperature fluctuating between 9.7°C (49.5°F) and 19.1°C (66.4°F).Temperature
In Heilsbronn, entering September brings a temperature decrement, reducing from August's moderately hot 24.2°C (75.6°F) to an enjoyable 19.1°C (66.4°F). In Heilsbronn, the nighttime temperature averages to a frosty 9.7°C (49.5°F) during September.Humidity
The average relative humidity in September is 78%.Rainfall
In Heilsbronn, in September, it is raining for 10.5 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, in Heilsbronn, there are 165.9 rainfall days, and 499mm (19.65") of precipitation is accumulated.Snowfall
In Heilsbronn, snow does not fall in June through September.Daylight
In September, the average length of the day in Heilsbronn is 12h and 36min.On the first day of the month, sunrise is at 06:33 and sunset at 19:59. On the last day of September, sunrise is at 07:15 and sunset at 18:57 CEST.
Sunshine
The average sunshine in September in Heilsbronn is 9h.UV index
The average daily maximum UV index in September in Heilsbronn is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Undertake precautions - Guarding against sun damage is counselled. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. 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
Heilsbronn, Germany
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (-2.4°C).
Average pressure in September
Heilsbronn, Germany
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Heilsbronn, Germany
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).
Average humidity in September
Heilsbronn, Germany
- Average humidity in September: 78%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in September
Heilsbronn, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (56mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Heilsbronn, Germany
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in September
Heilsbronn, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (140mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Heilsbronn, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Heilsbronn, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Heilsbronn, Germany
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in September
Heilsbronn, 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 December (UV index 1).
Average cloud cover in September
Heilsbronn, Germany
- Average cloud cover in September: 37
The months with the most cloud cover are January and December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Heilsbronn, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The month with the lowest visibility is January (7km).
