September weather forecastHeltersberg, Germany
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Heltersberg, Germany, with an average temperature ranging between max 19.5°C (67.1°F) and min 9.7°C (49.5°F).Temperature
Heltersberg's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 24°C (75.2°F) in August to a refreshing 19.5°C (67.1°F). September sees the temperature falling to a mean low of 9.7°C (49.5°F).Humidity
The average relative humidity in September in Heltersberg is 79%.Rainfall
In Heltersberg, during September, the rain falls for 13 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, there are 184 rainfall days, and 601mm (23.66") of precipitation is accumulated.Snowfall
In Heltersberg, Germany, snow does not fall in June through September.Daylight
In Heltersberg, the average length of the day in September is 12h and 36min.On the first day of the month, sunrise is at 06:46 and sunset at 20:11. On the last day of September, in Heltersberg, sunrise is at 07:28 and sunset at 19:09 CEST.
Sunshine
In September, the average sunshine in Heltersberg, Germany, is 8.2h.UV index
The average daily maximum UV index in September in Heltersberg is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Heltersberg, Germany
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is July (24.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (13.1°C).
The coldest month (with the lowest average low temperature) is January (-1°C).
Average pressure in September
Heltersberg, Germany
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is November (1014.8mbar).
Average wind speed in September
Heltersberg, Germany
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Heltersberg, Germany
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in September
Heltersberg, Germany
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Heltersberg, Germany
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Heltersberg, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (116mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Heltersberg, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Heltersberg, 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: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Heltersberg, Germany
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is December (8 days).
Average UV index in September
Heltersberg, Germany
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Heltersberg, Germany
- Average cloud cover in September: 38
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Heltersberg, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, June, July and August (9km).
The months with the lowest visibility are January, November and December (7km).
