September weather forecastWesterse Bos, Netherlands

September

Weather in September

September, the first month of the autumn in Westerse Bos, is still a refreshing month, with an average temperature varying between 18.5°C (65.3°F) and 10.9°C (51.6°F).

Temperature

The arrival of September corresponds with a light shift in temperature, down from an agreeable 22°C (71.6°F) in August to a refreshing 18.5°C (65.3°F). Throughout the month of September, Westerse Bos expects an average low of 10.9°C (51.6°F).

Humidity

In September, the average relative humidity in Westerse Bos is 82%.

Rainfall

In Westerse Bos, during September, the rain falls for 17.3 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 203.1 rainfall days, and 528mm (20.79") of precipitation is accumulated.

Snowfall

In Westerse Bos, Netherlands, snow does not fall in May through October.

Daylight

In September, the average length of the day in Westerse Bos, Netherlands, is 12h and 40min.
On the first day of the month, sunrise is at 06:44 and sunset at 20:20. On the last day of September, sunrise is at 07:33 and sunset at 19:11 CEST.

Sunshine

The average sunshine in September in Westerse Bos is 7.5h.

UV index

In Westerse Bos, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 4 during September leads to these advisories:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

In Westerse Bos, in September, the average high-temperature is 18.5°C (65.3°F), and the average low-temperature is 10.9°C (51.6°F).

In Westerse Bos, Netherlands, the average relative humidity in September is 82%.

In Westerse Bos, Netherlands, in September, during 17.3 rainfall days, 38mm (1.5") of precipitation is typically accumulated.

In Westerse Bos, snow does not fall in May through October.

In Westerse Bos, Netherlands, the average day length in September is 12h and 40min.

On the first day of September in Westerse Bos, Netherlands, sunrise is at 06:44 and sunset at 20:20. On the last day of the month, sunrise is at 07:33 and sunset at 19:11 CEST.

In Westerse Bos, the average sunshine duration in September is 7.5h.

In Westerse Bos, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Westerse Bos, Netherlands

  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is August (22°C).
The month with the lowest average high temperature is January (4°C).

  • Average low temperature in September: 10.9°C

The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (0.4°C).

Average pressure in September
Westerse Bos, Netherlands

  • Average pressure in September: 1016.7mbar

The month with the highest atmospheric pressure is September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).

Average wind speed in September
Westerse Bos, Netherlands

  • Average wind speed in September: 13km/h

The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).

Average humidity in September
Westerse Bos, Netherlands

  • Average humidity in September: 82%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Westerse Bos, Netherlands

  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is June (60mm).
The driest month (with the least rainfall) is April (23mm).

Average rainfall days in September
Westerse Bos, Netherlands

  • Average rainfall days in September: 17.3 days

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is February (13.9 days).

Average snowfall in September
Westerse Bos, Netherlands

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (32mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Westerse Bos, Netherlands

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (4.8 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
Westerse Bos, Netherlands

  • Average daylight in September: 12h and 42min

The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).

  • Average sunshine in September: 7h and 30min

The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in September
Westerse Bos, Netherlands

  • Average sunshine days in September: 9.3 days

The month with the most sunshine days is March (14.2 days).
The month with the least sunshine days is June (7.2 days).

Average UV index in September
Westerse Bos, Netherlands

  • Average UV index in September: 4

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

Average cloud cover in September
Westerse Bos, Netherlands

  • Average cloud cover in September: 47

The month with the most cloud cover is December (Cloud cover 67).
The months with the least cloud cover are April and August (Cloud cover 42).

Average visibility in September
Westerse Bos, Netherlands

  • Average visibility in September: 8km

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