September weather forecastHeppignies, Belgium

September

Weather in September

September, the first month of the autumn in Heppignies, is still a comfortable month, with an average temperature fluctuating between 10.3°C (50.5°F) and 19°C (66.2°F).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a pleasant 22.4°C (72.3°F) in August to a comfortable 19°C (66.2°F). September in Heppignies is noted for a mean low-temperature of 10.3°C (50.5°F).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Heppignies, during September, the rain falls for 13.8 days and regularly aggregates up to 36mm (1.42") of precipitation. In Heppignies, during the entire year, the rain falls for 180.9 days and collects up to 510mm (20.08") of precipitation.

Snowfall

In Heppignies, snow does not fall in April through September.

Daylight

In Heppignies, the average length of the day in September is 12h and 37min.
On the first day of the month, sunrise is at 06:57 and sunset at 20:26. On the last day of September, sunrise is at 07:41 and sunset at 19:22 CEST.

Sunshine

The average sunshine in September in Heppignies, Belgium, is 7.3h.

UV index

In Heppignies, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

The average high-temperature, in September, in Heppignies, is 19°C (66.2°F), while the average low-temperature is 10.3°C (50.5°F).

The average relative humidity in September is 79%.

In Heppignies, in September, during 13.8 rainfall days, 36mm (1.42") of precipitation is typically accumulated.

In Heppignies, snow does not fall in April through September.

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

In September, the average day length in Heppignies is 12h and 37min.

In September, on the first day of the month, sunrise is at 06:57 and sunset at 20:26. On the last day of the month, in Heppignies, Belgium, sunrise is at 07:41 and sunset at 19:22 CEST.

The average sunshine duration in September is 7.3h.

In September, the average daily maximum UV index in Heppignies is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Heppignies, Belgium

  • Average high temperature in September: 19°C

The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (4.6°C).

  • Average low temperature in September: 10.3°C

The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (0.6°C).

Average pressure in September
Heppignies, Belgium

  • Average pressure in September: 1017.5mbar

The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.8mbar).

Average wind speed in September
Heppignies, Belgium

  • Average wind speed in September: 12km/h

The windiest month (with the highest average wind speed) is December (18.7km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).

Average humidity in September
Heppignies, Belgium

  • Average humidity in September: 79%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).

Average rainfall in September
Heppignies, Belgium

  • Average rainfall in September: 36mm

The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is April (30mm).

Average rainfall days in September
Heppignies, Belgium

  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (12.1 days).

Average snowfall in September
Heppignies, Belgium

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (47mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).

Average snowfall days in September
Heppignies, Belgium

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in September: 7h and 18min

The month with the most sunshine is July (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).

Average sunshine days in September
Heppignies, Belgium

  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is March (14.2 days).
The month with the least sunshine days is August (10.4 days).

Average UV index in September
Heppignies, Belgium

  • Average UV index in September: 4

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

Average cloud cover in September
Heppignies, Belgium

  • Average cloud cover in September: 45

The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are April and August (Cloud cover 44).

Average visibility in September
Heppignies, Belgium

  • Average visibility in September: 9km

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