September weather forecastDen Hool, Netherlands

September

Weather in September

September, the first month of the autumn in Den Hool, is still a comfortable month, with an average temperature ranging between max 18.6°C (65.5°F) and min 10.9°C (51.6°F).

Temperature

September marks a gentle change in average high-temperature, declining from August's agreeable 22°C (71.6°F) to a refreshing 18.6°C (65.5°F). Throughout the month of September, Den Hool observes an average nighttime temperature of 10.9°C (51.6°F).

Humidity

In September, the average relative humidity in Den Hool is 82%.

Rainfall

In Den Hool, Netherlands, during September, the rain falls for 17.4 days and regularly aggregates up to 42mm (1.65") of precipitation. Throughout the year, there are 203.2 rainfall days, and 532mm (20.94") of precipitation is accumulated.

Snowfall

In Den Hool, Netherlands, snow does not fall in May through October.

Daylight

In Den Hool, Netherlands, the average length of the day in September 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, in Den Hool, Netherlands, sunrise is at 07:33 and sunset at 19:11 CEST.

Sunshine

In Den Hool, the average sunshine in September is 7.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

The high-temperature during September is 18.6°C (65.5°F) and the low-temperature is 10.9°C (51.6°F).

The average relative humidity in September in Den Hool is 82%.

In Den Hool, during September, the rain falls for 17.4 days and regularly aggregates up to 42mm (1.65") of precipitation.

In Den Hool, Netherlands, snow does not fall in May through October.

In September, the average day length in Den Hool is 12h and 40min.

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

In Den Hool, the average sunshine duration in September is 7.4h.

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Den Hool, Netherlands

  • Average high temperature in September: 18.6°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
Den Hool, 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
Den Hool, 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
Den Hool, 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
Den Hool, Netherlands

  • Average rainfall in September: 42mm

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
Den Hool, Netherlands

  • Average rainfall days in September: 17.4 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
Den Hool, 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
Den Hool, 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
Den Hool, 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 24min

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 12min).

Average sunshine days in September
Den Hool, Netherlands

  • Average sunshine days in September: 9.4 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
Den Hool, 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
Den Hool, 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
Den Hool, Netherlands

  • 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).