September weather forecast and climate
Rochehaut, Belgium

Weather in September

September, the first month of the autumn, in Rochehaut, is also an enjoyable month, with average temperature fluctuating between 9.7°C (49.5°F) and 18.8°C (65.8°F).

Temperature

In September, the average high-temperature marginally drops, from a pleasant 22.3°C (72.1°F) in August, to an enjoyable 18.8°C (65.8°F). The average low-temperature, in September, is 9.7°C (49.5°F).

Humidity

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

Rainfall

In Rochehaut, during 13.2 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, there are 190.4 rainfall days, and 641mm (25.24") of precipitation is accumulated.

Snowfall

In Rochehaut, Belgium, snow does not fall in May through September.

Daylight

The average length of the day in Rochehaut is 12.6h.

Sunshine

The average sunshine in Rochehaut is 7.6h.

UV index

In September, the average daily maximum UV index in Rochehaut is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 in September transform into the following instructions:
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. 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 Rochehaut?

In Rochehaut, in September, the average high-temperature is 18.8°C (65.8°F), and the average low-temperature is 9.7°C (49.5°F).

What is the average humidity in September in Rochehaut?

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

How much does it rain in Rochehaut in September?

In Rochehaut, Belgium, in September, during 13.2 rainfall days, 44mm (1.73") of precipitation is typically accumulated.

Does it snow in Rochehaut in September?

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

When it does not snow in Rochehaut?

In Rochehaut snow does not fall in May through September.

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

The average length of the day in September in Rochehaut is 12.6h.

How long on average sun shines in September in Rochehaut?

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

How high is the UV index in September in Rochehaut?

In Rochehaut, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in September
Rochehaut, Belgium

Average temperature in September - Rochehaut, Belgium
  • Average high temperature in September: 18.8°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 (3.9°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).

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Average pressure in September
Rochehaut, Belgium

Average pressure in September - Rochehaut, Belgium
  • Average pressure in September: 1017.7mbar

Months with the highest atmospheric pressure are September and December (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).

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Average wind speed in September
Rochehaut, Belgium

Average wind speed in September - Rochehaut, Belgium
  • Average wind speed in September: 10.3km/h

The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

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Average humidity in September
Rochehaut, Belgium

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

The month with the highest relative humidity is December (92%).
The month with the lowest relative humidity is August (78%).

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Average rainfall in September
Rochehaut, Belgium

Average rainfall in September - Rochehaut, Belgium
  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is December (80mm).
The driest month (with the least rainfall) is April (35mm).

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Average rainfall days in September
Rochehaut, Belgium

Average rainfall days in September - Rochehaut, Belgium
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is December (18.4 days).
The month with the least rainy days is February (13 days).

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Average snowfall in September
Rochehaut, Belgium

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

The month with the highest snowfall is January (56mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in September
Rochehaut, Belgium

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

Months with the highest number of snowfall days are January and February (4.7 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Rochehaut, 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: 8.2h).

  • Average sunshine in September: 7.6h

The month with the most sunshine is August (Average sunshine: 9.1h).
The month with the least sunshine is December (Average sunshine: 3.3h).

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Average sunshine days in September
Rochehaut, Belgium

Average sunshine days in September - Rochehaut, Belgium
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is December (9.5 days).

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Average UV index in September
Rochehaut, Belgium

Average UV index in September - Rochehaut, 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, November and December (UV index 2).

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Average cloud cover in September
Rochehaut, Belgium

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

The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 40).

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Average visibility in September
Rochehaut, Belgium

Average visibility in September - Rochehaut, 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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