September weather forecast and climate
Hoolsterberg, Belgium

Weather in September

September, the first month of the autumn, in Hoolsterberg, is still a comfortable month, with average temperature fluctuating between 19.5°C (67.1°F) and 11.1°C (52°F).

Temperature

In September, the average high-temperature marginally drops, from a warm 23.3°C (73.9°F) in August, to an enjoyable 19.5°C (67.1°F). In September, the average low-temperature is 11.1°C (52°F).

Humidity

The average relative humidity in Hoolsterberg is 78%.

Rainfall

In Hoolsterberg, during September, the rain falls for 12.9 days and regularly aggregates up to 30mm (1.18") of precipitation. In Hoolsterberg, during the entire year, the rain falls for 173.1 days and collects up to 472mm (18.58") of precipitation.

Snowfall

In Hoolsterberg snow does not fall in April through October.

Daylight

In Hoolsterberg, the average length of the day in September is 12.6h.

Sunshine

In Hoolsterberg, the average sunshine in September is 7.6h.

UV index

In Hoolsterberg, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Hoolsterberg?

In Hoolsterberg, Belgium, in September, the average high-temperature is 19.5°C (67.1°F), and the average low-temperature is 11.1°C (52°F).

What is the average humidity in September in Hoolsterberg?

The average relative humidity in September in Hoolsterberg, Belgium, is 78%.

How much does it rain in Hoolsterberg in September?

In Hoolsterberg, Belgium, in September, during 12.9 rainfall days, 30mm (1.18") of precipitation is typically accumulated.

When it does not snow in Hoolsterberg?

In Hoolsterberg, Belgium, snow does not fall in April through October.

What is the average length of the day in September in Hoolsterberg?

The average length of the day in September in Hoolsterberg, Belgium, is 12.6h.

How many hours of sunshine does Hoolsterberg have in September?

In Hoolsterberg, Belgium, the average sunshine in September is 7.6h.

What is the UV index intensity in September in Hoolsterberg?

In Hoolsterberg, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Hoolsterberg, Belgium

Average temperature in September - Hoolsterberg, Belgium
  • Average high temperature in September: 19.5°C

The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (5°C).

  • Average low temperature in September: 11.1°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).

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Average pressure in September
Hoolsterberg, Belgium

Average pressure in September - Hoolsterberg, Belgium
  • Average pressure in September: 1017.4mbar

The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).

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Average wind speed in September
Hoolsterberg, Belgium

Average wind speed in September - Hoolsterberg, Belgium
  • Average wind speed in September: 11.5km/h

The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).

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Average humidity in September
Hoolsterberg, Belgium

Average humidity in September - Hoolsterberg, Belgium
  • Average humidity in September: 78%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in September
Hoolsterberg, Belgium

Average rainfall in September - Hoolsterberg, Belgium
  • Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (20mm).

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Average rainfall days in September
Hoolsterberg, Belgium

Average rainfall days in September - Hoolsterberg, Belgium
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is April (11.3 days).

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Average snowfall in September
Hoolsterberg, Belgium

Average snowfall in September - Hoolsterberg, Belgium
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (34mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in September
Hoolsterberg, Belgium

Average snowfall days in September - Hoolsterberg, Belgium
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Hoolsterberg, Belgium

Average daylight in September / Average sunshine in September - Hoolsterberg, Belgium
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.5h).
The month with the shortest days is December (Average daylight: 8h).

  • Average sunshine in September: 7.6h

The month with the most sunshine is July (Average sunshine: 9.1h).
The month with the least sunshine is December (Average sunshine: 3.4h).

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Average sunshine days in September
Hoolsterberg, Belgium

Average sunshine days in September - Hoolsterberg, Belgium
  • Average sunshine days in September: 14.7 days

Months with the most sunshine days are March and April (16.6 days).
Months with the least sunshine days are June and July (9.8 days).

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Average UV index in September
Hoolsterberg, Belgium

Average UV index in September - Hoolsterberg, Belgium
  • Average UV index in September: 4

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

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Average cloud cover in September
Hoolsterberg, Belgium

Average cloud cover in September - Hoolsterberg, Belgium
  • Average cloud cover in September: 43

The month with the most cloud cover is December (Cloud cover 63).
Months with the least cloud cover are April and August (Cloud cover 41).

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Average visibility in September
Hoolsterberg, Belgium

Average visibility in September - Hoolsterberg, Belgium
  • Average visibility in September: 9km

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

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