September weather forecast and climate
Blankenberge, Belgium

September, the first month of the autumn, in Blankenberge, is still a comfortable month, with average temperature fluctuating between 18.8°C (65.8°F) and 13.3°C (55.9°F).

Temperature

In September, the average high-temperature is almost the same as in August - a comfortable 18.8°C (65.8°F). In Blankenberge, the average low-temperature is 13.3°C (55.9°F).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In September, the rain falls for 15.5 days. Throughout September, 33mm (1.3") of precipitation is accumulated. In Blankenberge, Belgium, during the entire year, the rain falls for 190.7 days and collects up to 500mm (19.69") of precipitation.

Snowfall

April through October are months without snowfall.

Sea temperature

In September, the average sea temperature in Blankenberge, Belgium, is 18.2°C (64.8°F).
Note: Swimming in 18.2°C (64.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

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

Sunshine

The average sunshine in September is 7.3h.

UV index

In September, the average daily maximum UV index in Blankenberge is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the average person.
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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.

What is the temperature in September in Blankenberge?

In September, in Blankenberge, Belgium, the average high-temperature is 18.8°C (65.8°F), and the average low-temperature is 13.3°C (55.9°F).

What is the average humidity in September in Blankenberge?

The average relative humidity in September in Blankenberge, Belgium, is 77%.

How much does it rain in Blankenberge in September?

In Blankenberge, Belgium, in September, it is raining for 15.5 days, with typically 33mm (1.3") of accumulated precipitation.

When it does not snow in Blankenberge?

April through October are months without snowfall.

What is the sea temperature in September in Blankenberge?

In Blankenberge, the average seawater temperature in September is 18.2°C (64.8°F). Swimming in 18.2°C (64.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

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

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

How long on average sun shines in September in Blankenberge?

In September, the average sunshine is 7.3h.

What is the UV index reading in September in Blankenberge?

The average daily maximum UV index in September in Blankenberge, Belgium, is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.
Average temperature in September - Blankenberge, Belgium
  • Average high temperature in September: 18.8°C

The warmest month (with the highest average high temperature) is August (21.4°C).
The month with the lowest average high temperature is January (6.2°C).

  • Average low temperature in September: 13.3°C

The month with the highest average low temperature is August (15.1°C).
The coldest months (with the lowest average low temperature) are January and February (2.8°C).

Average pressure in September - Blankenberge, 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 (1011.7mbar).

Average wind speed in September - Blankenberge, Belgium
  • Average wind speed in September: 16.6km/h

The windiest month (with the highest average wind speed) is December (22.6km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).

Average humidity in September - Blankenberge, Belgium
  • Average humidity in September: 77%

Months with the highest relative humidity are January and December (85%).
Months with the lowest relative humidity are April, July and August (76%).

Average rainfall in September - Blankenberge, Belgium
  • Average rainfall in September: 33mm

The wettest months (with the highest rainfall) are August and December (56mm).
The driest month (with the least rainfall) is April (20mm).

Average rainfall days in September - Blankenberge, Belgium
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is November (18.6 days).
The month with the least rainy days is April (12.1 days).

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

The month with the highest snowfall is January (27mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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

The month with the highest number of snowfall days is February (3.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September - Blankenberge, Belgium
  • Average sea temperature in September: 18.2°C

The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is March (7.1°C).

Average daylight in September / Average sunshine in September - Blankenberge, 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: 7.3h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 3.8h).

Average sunshine days in September - Blankenberge, Belgium
  • Average sunshine days in September: 11.1 days

The month with the most sunshine days is April (15.4 days).
The month with the least sunshine days is December (7 days).

Average UV index in September - Blankenberge, 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).

Average cloud cover in September - Blankenberge, Belgium
  • Average cloud cover in September: 41

The month with the most cloud cover is December (Cloud cover 62).
Months with the least cloud cover are April and August (Cloud cover 38).

Average visibility in September - Blankenberge, Belgium
  • Average visibility in September: 10km

Months with the highest visibility are March, April, May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, November and December (9km).