September weather forecastHeidelsheim, Germany

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Heidelsheim, Germany, with temperature in the range of an average high of 20.6°C (69.1°F) and an average low of 10.9°C (51.6°F).

Temperature

The transition into September indicates a reduction in the average high-temperature, down to an agreeable 20.6°C (69.1°F) from August's warm 25.7°C (78.3°F). September brings with it a nighttime average temperature of 10.9°C (51.6°F) in Heidelsheim.

Humidity

In September, the average relative humidity in Heidelsheim, Germany, is 74%.

Rainfall

In Heidelsheim, during September, the rain falls for 9.6 days and regularly aggregates up to 20mm (0.79") of precipitation. In Heidelsheim, during the entire year, the rain falls for 143.7 days and collects up to 326mm (12.83") of precipitation.

Snowfall

In Heidelsheim, Germany, snow does not fall in April through October.

Daylight

In Heidelsheim, the average length of the day in September is 12h and 35min.
On the first day of the month, sunrise is at 06:42 and sunset at 20:07. On the last day of September, sunrise is at 07:24 and sunset at 19:06 CEST.

Sunshine

In September, the average sunshine in Heidelsheim is 8.8h.

UV index

In Heidelsheim, the average daily maximum UV index in September 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 ordinary individuals.
Note: In September, an average UV index of 4 transforms into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. It's recommended to limit sun exposure when its radiation is at its peak during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

The high-temperature in Heidelsheim, Germany, during September is 20.6°C (69.1°F) and the low-temperature is 10.9°C (51.6°F).

In September, the average relative humidity is 74%.

In Heidelsheim, in September, it is raining for 9.6 days, with typically 20mm (0.79") of accumulated precipitation.

In Heidelsheim, snow does not fall in April through October.

In September, the average day length is 12h and 35min.

In September, on the first day of the month, sunrise is at 06:42 and sunset at 20:07. On the last day of the month, in Heidelsheim, sunrise is at 07:24 and sunset at 19:06 CEST.

The average sunshine duration in September in Heidelsheim is 8.8h.

The average daily maximum UV index in September in Heidelsheim, Germany, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Heidelsheim, Germany

  • Average high temperature in September: 20.6°C

The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (4.1°C).

  • Average low temperature in September: 10.9°C

The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).

Average pressure in September
Heidelsheim, 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 (1015.1mbar).

Average wind speed in September
Heidelsheim, Germany

  • Average wind speed in September: 8.6km/h

The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).

Average humidity in September
Heidelsheim, Germany

  • Average humidity in September: 74%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (68%).

Average rainfall in September
Heidelsheim, Germany

  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is May (46mm).
The driest month (with the least rainfall) is April (16mm).

Average rainfall days in September
Heidelsheim, Germany

  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is September (9.6 days).

Average snowfall in September
Heidelsheim, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Heidelsheim, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Heidelsheim, Germany

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in September: 8h and 48min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in September
Heidelsheim, Germany

  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in September
Heidelsheim, Germany

  • Average UV index in September: 4

The months with the highest UV index are May, 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
Heidelsheim, Germany

  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Heidelsheim, Germany

  • Average visibility in September: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).