Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
August
Weather in August
Temperature
Herstal's warmest period falls in July and August, when the average high-temperatures ascend to 22.3°C (72.1°F).Humidity
The months with the lowest humidity are April and August, with an average relative humidity of 77%.Rainfall
In Herstal, in August, during 18.3 rainfall days, 54mm (2.13") of precipitation is typically accumulated. Throughout the year, there are 193.2 rainfall days, and 544mm (21.42") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In August, the average length of the day is 14h and 29min.On the first day of August, sunrise is at 06:05 and sunset at 21:22. On the last day of the month, sunrise is at 06:50 and sunset at 20:24 CEST.
Sunshine
The months with the most sunshine are July and August, with an average of 9.2h of sunshine.UV index
The average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 4 in August interprets into the following advice:
Heed the precautions - It is counselled to guard against solar damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
What are the temperatures in August?
What are the least humid months?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Herstal have in August?
When is the sunrise / sunset in August?
What is the month with the most sunshine?
How long on average sun shines in August?
What is the UV index reading in August?
Average temperature in August
Herstal, Belgium
- Average high temperature in August: 22.3°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 (4.1°C).
- Average low temperature in August: 12.8°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in August
Herstal, Belgium
- Average pressure in August: 1015.8mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in August
Herstal, Belgium
- Average wind speed in August: 10.5km/h
The windiest month (with the highest average wind speed) is December (17km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).
Average humidity in August
Herstal, Belgium
- Average humidity in August: 77%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are April and August (77%).
Average rainfall in August
Herstal, Belgium
- Average rainfall in August: 54mm
The wettest month (with the highest rainfall) is December (58mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in August
Herstal, Belgium
- Average rainfall days in August: 18.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (12.7 days).
Average snowfall in August
Herstal, Belgium
- Average snowfall in August: 0mm
The month with the highest snowfall is January (50mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Herstal, Belgium
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Herstal, Belgium
- Average daylight in August: 14h and 3min
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 August: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in August
Herstal, Belgium
- Average sunshine days in August: 9.8 days
The month with the most sunshine days is October (14.7 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in August
Herstal, Belgium
- Average UV index in August: 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, March, November and December (UV index 2).
Average cloud cover in August
Herstal, Belgium
- Average cloud cover in August: 40
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in August
Herstal, Belgium
- Average visibility in August: 9km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
