September weather forecast and climate
Heukelom, Belgium

Weather in September

September, the first month of the autumn, in Heukelom, is also an enjoyable month, with average temperature fluctuating between 9.6°C (49.3°F) and 18.5°C (65.3°F).

Temperature

In Heukelom, the average high-temperature marginally drops, from a pleasant 22.3°C (72.1°F) in August, to a comfortable 18.5°C (65.3°F). In Heukelom, Belgium, in September, the average low-temperature is 9.6°C (49.3°F).

Humidity

In September, the average relative humidity in Heukelom is 81%.

Rainfall

In September, in Heukelom, the rain falls for 13.1 days. Throughout September, 30mm (1.18") of precipitation is accumulated. In Heukelom, Belgium, during the entire year, the rain falls for 192.8 days and collects up to 539mm (21.22") of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

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

Sunshine

In Heukelom, the average sunshine is 8h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Heukelom?

In September, in Heukelom, the average high-temperature is 18.5°C (65.3°F), and the average low-temperature is 9.6°C (49.3°F).

What is the average humidity in September in Heukelom?

The average relative humidity in September in Heukelom is 81%.

How much does it rain in Heukelom in September?

In September, in Heukelom, Belgium, the rain falls for 13.1 days. Throughout September, 30mm (1.18") of precipitation is accumulated.

When it does not snow in Heukelom?

In Heukelom snow does not fall in May through October.

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

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

How long on average sun shines in September in Heukelom?

In Heukelom, Belgium, the average sunshine in September is 8h.

What is the UV index reading in September in Heukelom?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Heukelom, Belgium

Average temperature in September - Heukelom, Belgium
  • Average high temperature in September: 18.5°C

The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (4.1°C).

  • Average low temperature in September: 9.6°C

The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).

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Average pressure in September
Heukelom, Belgium

Average pressure in September - Heukelom, Belgium
  • 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 (1013.1mbar).

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Average wind speed in September
Heukelom, Belgium

Average wind speed in September - Heukelom, Belgium
  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is December (17km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).

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Average humidity in September
Heukelom, Belgium

Average humidity in September - Heukelom, Belgium
  • Average humidity in September: 81%

The month with the highest relative humidity is December (89%).
Months with the lowest relative humidity are April and August (77%).

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Average rainfall in September
Heukelom, Belgium

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

The wettest month (with the highest rainfall) is December (58mm).
The driest month (with the least rainfall) is April (26mm).

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Average rainfall days in September
Heukelom, Belgium

Average rainfall days in September - Heukelom, Belgium
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (12.7 days).

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Average snowfall in September
Heukelom, Belgium

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

The month with the highest snowfall is January (50mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in September
Heukelom, Belgium

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

The month with the highest number of snowfall days is January (5.8 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
Heukelom, Belgium

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

The month with the longest days is June (Average daylight: 16.4h).
The month with the shortest days is December (Average daylight: 8h).

  • Average sunshine in September: 8h

Months with the most sunshine are July and August (Average sunshine: 9.2h).
The month with the least sunshine is December (Average sunshine: 3.8h).

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Average sunshine days in September
Heukelom, Belgium

Average sunshine days in September - Heukelom, Belgium
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is October (14.7 days).
The month with the least sunshine days is June (8.3 days).

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Average UV index in September
Heukelom, Belgium

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

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

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Average cloud cover in September
Heukelom, Belgium

Average cloud cover in September - Heukelom, Belgium
  • Average cloud cover in September: 42

The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).

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Average visibility in September
Heukelom, Belgium

Average visibility in September - Heukelom, Belgium
  • Average visibility in September: 8km

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

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