September weather forecastHeppendorf, Germany
September
Weather in September
September, the first month of the autumn in Heppendorf, is also an enjoyable month, with an average temperature varying between 19.5°C (67.1°F) and 11.1°C (52°F).Temperature
A moderate decline in average high-temperatures is noted in September, moving from a warm 23.7°C (74.7°F) in August to a comfortable 19.5°C (67.1°F). An average temperature of 11.1°C (52°F) is recorded in Heppendorf during the nights in September.Humidity
In September, the average relative humidity is 76%.Rainfall
In Heppendorf, in September, it is raining for 11.8 days, with typically 26mm (1.02") of accumulated precipitation. Throughout the year, there are 166.2 rainfall days, and 393mm (15.47") of precipitation is accumulated.Snowfall
In Heppendorf, snow does not fall in April through October.Daylight
In Heppendorf, the average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 06:47 and sunset at 20:18. On the last day of the month, sunrise is at 07:33 and sunset at 19:13 CEST.
Sunshine
In Heppendorf, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Heppendorf, Germany
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (4.6°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (0.5°C).
Average pressure in September
Heppendorf, Germany
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in September
Heppendorf, Germany
- Average wind speed in September: 10.5km/h
The windiest months (with the highest average wind speed) are February and December (15.3km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).
Average humidity in September
Heppendorf, Germany
- Average humidity in September: 76%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Heppendorf, Germany
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is June (41mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Heppendorf, Germany
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is April (11.6 days).
Average snowfall in September
Heppendorf, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Heppendorf, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Heppendorf, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Heppendorf, Germany
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Heppendorf, 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, February, November and December (UV index 2).
Average cloud cover in September
Heppendorf, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Heppendorf, Germany
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
