September weather forecastBad Sassendorf, Germany

September

Weather in September

September, the first month of the autumn in Bad Sassendorf, is still a refreshing month, with an average temperature fluctuating between 9.9°C (49.8°F) and 18.5°C (65.3°F).

Temperature

As August transitions into September, Bad Sassendorf sees a gentle drop in the average high-temperature, transitioning from a moderately hot 23°C (73.4°F) to a refreshing 18.5°C (65.3°F). Bad Sassendorf experiences a nighttime temperature average of 9.9°C (49.8°F) during September.

Humidity

The average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.3 days and accumulates 29mm (1.14") of precipitation.

Snowfall

In Bad Sassendorf, snow does not fall in May through October.

Daylight

In Bad Sassendorf, the average length of the day in September is 12h and 38min.
On the first day of the month, sunrise is at 06:40 and sunset at 20:13. On the last day of September, sunrise is at 07:27 and sunset at 19:06 CEST.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In Bad Sassendorf, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 3 during September leads to these advisories:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

The high-temperature during September is 18.5°C (65.3°F) and the low-temperature is 9.9°C (49.8°F).

In Bad Sassendorf, the average relative humidity in September is 79%.

The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 29mm (1.14") of precipitation.

In Bad Sassendorf, during September, the rain falls for 13.3 days and regularly aggregates up to 29mm (1.14") of precipitation.

May through October are months without snowfall.

The average day length in September is 12h and 38min.

In September, on the first day of the month, sunrise is at 06:40 and sunset at 20:13. On the last day of the month, sunrise is at 07:27 and sunset at 19:06 CEST.

In Bad Sassendorf, the average sunshine duration in September is 8.4h.

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Bad Sassendorf, Germany

  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (3.6°C).

  • Average low temperature in September: 9.9°C

The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (-0.8°C).

Average pressure in September
Bad Sassendorf, Germany

  • Average pressure in September: 1017.6mbar

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.2mbar).

Average wind speed in September
Bad Sassendorf, Germany

  • Average wind speed in September: 9.9km/h

The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest months (with the lowest average wind speed) are July and August (9.6km/h).

Average humidity in September
Bad Sassendorf, Germany

  • Average humidity in September: 79%

The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (74%).

Average rainfall in September
Bad Sassendorf, Germany

  • Average rainfall in September: 29mm

The wettest month (with the highest rainfall) is December (52mm).
The driest month (with the least rainfall) is September (29mm).

Average rainfall days in September
Bad Sassendorf, Germany

  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (11.7 days).

Average snowfall in September
Bad Sassendorf, Germany

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (59mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Bad Sassendorf, Germany

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.3 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
Bad Sassendorf, Germany

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in September: 8h and 24min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).

Average sunshine days in September
Bad Sassendorf, Germany

  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in September
Bad Sassendorf, Germany

  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Bad Sassendorf, Germany

  • Average cloud cover in September: 42

The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).

Average visibility in September
Bad Sassendorf, Germany

  • Average visibility in September: 8km

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