September weather forecast and climate
Ostemerée, Belgium

Weather in September

September, the first month of the autumn, in Ostemerée, is still a comfortable month, with average temperature varying between 18.7°C (65.7°F) and 9.8°C (49.6°F).

Temperature

In September, the average high-temperature marginally drops, from a pleasant 21.8°C (71.2°F) in August, to a comfortable 18.7°C (65.7°F). The average low-temperature, in Ostemerée, is 9.8°C (49.6°F).

Humidity

In Ostemerée, the average relative humidity is 81%.

Rainfall

In Ostemerée, it is raining for 13.8 days, with typically 40mm (1.57") of accumulated precipitation. In Ostemerée, Belgium, during the entire year, the rain falls for 188.7 days and collects up to 575mm (22.64") of precipitation.

Snowfall

In Ostemerée snow does not fall in May through September.

Daylight

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

Sunshine

In September, the average sunshine in Ostemerée is 7.5h.

UV index

In Ostemerée, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. 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 Ostemerée?

In September, in Ostemerée, Belgium, the average high-temperature is 18.7°C (65.7°F), and the average low-temperature is 9.8°C (49.6°F).

What is the average humidity in September in Ostemerée?

The average relative humidity in September in Ostemerée, Belgium, is 81%.

How much does it rain in Ostemerée in September?

In Ostemerée, Belgium, in September, it is raining for 13.8 days, with typically 40mm (1.57") of accumulated precipitation.

Does it snow in Ostemerée in September?

In Ostemerée, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Ostemerée?

In Ostemerée snow does not fall in May through September.

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

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

How many hours of sunshine does Ostemerée have in September?

In September, the average sunshine in Ostemerée is 7.5h.

What is the UV index intensity in September in Ostemerée?

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

Average temperature in September
Ostemerée, Belgium

Average temperature in September - Ostemerée, Belgium
  • Average high temperature in September: 18.7°C

The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (3.9°C).

  • Average low temperature in September: 9.8°C

The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is January (-0.2°C).

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Average pressure in September
Ostemerée, Belgium

Average pressure in September - Ostemerée, 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
Ostemerée, Belgium

Average wind speed in September - Ostemerée, Belgium
  • Average wind speed in September: 11.1km/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 (10.6km/h).

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Average humidity in September
Ostemerée, Belgium

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

The month with the highest relative humidity is December (91%).
Months with the lowest relative humidity are April and August (79%).

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Average rainfall in September
Ostemerée, Belgium

Average rainfall in September - Ostemerée, Belgium
  • Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (31mm).

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Average rainfall days in September
Ostemerée, Belgium

Average rainfall days in September - Ostemerée, Belgium
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (12.4 days).

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Average snowfall in September
Ostemerée, Belgium

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

The month with the highest snowfall is January (68mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in September
Ostemerée, Belgium

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

The month with the highest number of snowfall days is January (8.2 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 16.3h).
The month with the shortest days is December (Average daylight: 8.1h).

  • Average sunshine in September: 7.5h

The month with the most sunshine is July (Average sunshine: 8.9h).
Months with the least sunshine are January and December (Average sunshine: 3.4).

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Average sunshine days in September
Ostemerée, Belgium

Average sunshine days in September - Ostemerée, Belgium
  • Average sunshine days in September: 12.8 days

Months with the most sunshine days are April and October (13.4 days).
The month with the least sunshine days is December (9.4 days).

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Average UV index in September
Ostemerée, Belgium

Average UV index in September - Ostemerée, 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
Ostemerée, Belgium

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

The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 43).

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Average visibility in September
Ostemerée, Belgium

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

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

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