September weather forecast and climate
Heibaart, Belgium

Weather in September

September, the first month of the autumn, in Heibaart, is still a comfortable month, with average temperature varying between 19.2°C (66.6°F) and 11.1°C (52°F).

Temperature

In Heibaart, the average high-temperature marginally drops, from a warm 23°C (73.4°F) in August, to a comfortable 19.2°C (66.6°F). In September, in Heibaart, the average low-temperature is 11.1°C (52°F).

Humidity

In Heibaart, the average relative humidity is 80%.

Rainfall

In Heibaart, it is raining for 12.1 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, in Heibaart, there are 185 rainfall days, and 482mm (18.98") of precipitation is accumulated.

Snowfall

In Heibaart snow does not fall in April through October.

Daylight

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

Sunshine

The average sunshine in Heibaart, Belgium, is 7.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Heibaart?

In Heibaart, in September, the average high-temperature is 19.2°C (66.6°F), and the average low-temperature is 11.1°C (52°F).

What is the average humidity in September in Heibaart?

In September, the average relative humidity is 80%.

How much does it rain in Heibaart in September?

In Heibaart, in September, during 12.1 rainfall days, 24mm (0.94") of precipitation is typically accumulated.

When it does not snow in Heibaart?

April through October are months without snowfall in Heibaart, Belgium.

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

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

How many hours of sunshine does Heibaart have in September?

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

What is the UV index intensity in September in Heibaart?

In September, the average daily maximum UV index in Heibaart is 4. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in September
Heibaart, Belgium

Average temperature in September - Heibaart, Belgium
  • Average high temperature in September: 19.2°C

The warmest months (with the highest average high temperature) are July and August (23°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 (14.1°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).

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Average pressure in September
Heibaart, Belgium

Average pressure in September - Heibaart, Belgium
  • Average pressure in September: 1017.3mbar

The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).

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Average wind speed in September
Heibaart, Belgium

Average wind speed in September - Heibaart, Belgium
  • Average wind speed in September: 11.6km/h

The windiest month (with the highest average wind speed) is December (17.4km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).

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Average humidity in September
Heibaart, Belgium

Average humidity in September - Heibaart, Belgium
  • Average humidity in September: 80%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in September
Heibaart, Belgium

Average rainfall in September - Heibaart, Belgium
  • Average rainfall in September: 24mm

The wettest month (with the highest rainfall) is December (58mm).
The driest month (with the least rainfall) is April (22mm).

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Average rainfall days in September
Heibaart, Belgium

Average rainfall days in September - Heibaart, Belgium
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is December (18.9 days).
The month with the least rainy days is September (12.1 days).

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Average snowfall in September
Heibaart, Belgium

Average snowfall in September - Heibaart, 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
Heibaart, Belgium

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

The month with the highest number of snowfall days is February (4.6 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
Heibaart, Belgium

Average daylight in September / Average sunshine in September - Heibaart, 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: 3.7h).

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Average sunshine days in September
Heibaart, Belgium

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

The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is December (8.2 days).

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Average UV index in September
Heibaart, Belgium

Average UV index in September - Heibaart, 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
Heibaart, Belgium

Average cloud cover in September - Heibaart, Belgium
  • Average cloud cover in September: 44

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

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Average visibility in September
Heibaart, Belgium

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

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

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