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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, in Heverlee, Belgium, is a wintry winter month, with an average temperature ranging between max 4.9°C (40.8°F) and min 1°C (33.8°F). January is Heverlee's coldest month, registering average high temperatures of 4.9°C (40.8°F) and lows of 1°C (33.8°F). Weather in January »
Weather in February
February, the last month of the winter in Heverlee, is a chilly month, with temperature in the range of an average high of 6.3°C (43.3°F) and an average low of 1.3°C (34.3°F). As January transitions into February, Heverlee records an average high-temperature of a chilly 6.3°C (43.3°F), showing a gentle shift from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Heverlee, is a cool month, with an average temperature fluctuating between 3.3°C (37.9°F) and 10.7°C (51.3°F). March's onset brings a minor rise in the average high-temperature, moving from a chilly 6.3°C (43.3°F) in February to a fresh 10.7°C (51.3°F). Weather in March »
Weather in April
April in Heverlee, Belgium, is a mild spring month, with temperature in the range of an average high of 15.3°C (59.5°F) and an average low of 5.8°C (42.4°F). Heverlee's weather in April shows a minor rise in the average high-temperature, moving slightly up from March's fresh 10.7°C (51.3°F) to a refreshing 15.3°C (59.5°F). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Heverlee, Belgium, with an average temperature ranging between min 8.3°C (46.9°F) and max 17.5°C (63.5°F). Heverlee experiences a subtle adjustment in high-temperatures to a comfortable 17.5°C (63.5°F) with the onset of May, maintaining near parity with April's 15.3°C (59.5°F). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Heverlee, Belgium, with an average temperature ranging between min 11.5°C (52.7°F) and max 20.8°C (69.4°F). As Heverlee welcomes June, the average high-temperature displays a subtle shift, adjusting from an enjoyable 17.5°C (63.5°F) in May to a pleasant 20.8°C (69.4°F). Weather in June »
Weather in July
July in Heverlee, Belgium, is a moderately hot summer month, with an average temperature varying between 13.7°C (56.7°F) and 23.2°C (73.8°F). Heverlee notes the warmest temperatures in July, with a high average of 23.2°C (73.8°F) and a low of 13.7°C (56.7°F). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Heverlee, Belgium, with an average temperature varying between 23.1°C (73.6°F) and 14°C (57.2°F). August welcomes an average high-temperature of a still moderately hot 23.1°C (73.6°F), not much different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Heverlee, is also an enjoyable month, with temperature in the range of an average high of 19.4°C (66.9°F) and an average low of 11°C (51.8°F). September heralds a minor drop in average high-temperature, sliding from August's warm 23.1°C (73.6°F) to a refreshing 19.4°C (66.9°F). Weather in September »
Weather in October
October, the same as September, in Heverlee, Belgium, is another refreshing autumn month, with an average temperature ranging between min 8.1°C (46.6°F) and max 15.1°C (59.2°F). With the beginning of October, the average high-temperature shows a small decrease, transitioning from an enjoyable 19.4°C (66.9°F) in September to a mild 15.1°C (59.2°F). Weather in October »
Weather in November
November, the last month of the autumn in Heverlee, is another chilly month, with an average temperature fluctuating between 5°C (41°F) and 9.6°C (49.3°F). The move into November indicates a reduction in the average high-temperature, down from October's moderate 15.1°C (59.2°F) to a frosty 9.6°C (49.3°F). Weather in November »
Weather in December
December, the first month of the winter in Heverlee, is also a frosty month, with temperature in the range of an average low of 2.4°C (36.3°F) and an average high of 6.3°C (43.3°F). The start of December comes with a small reduction in the average high-temperature, subtly receding from a chilly 9.6°C (49.3°F) in November to a still frosty 6.3°C (43.3°F). Weather in December »
Updated: Jan 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Heverlee?
In Heverlee, January records the average lowest temperatures, peaking at 4.9°C (40.8°F) and reaching a low of 1°C (33.8°F).
How many days does it rain in Heverlee?
In Heverlee, during the entire year, the rain falls for 162 days and collects up to 393mm (15.47") of precipitation.
When does it snow in Heverlee?
January through March, November and December are months with snowfall.
How much does it snow in Heverlee?
Throughout the year, there are 14.4 snowfall days, and 108mm (4.25") of snow is accumulated.
What is the month with the lowest UV index in Heverlee?
The months with the lowest UV index in Heverlee are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month in Heverlee?
February is the month with the most snowfall. Snow falls for 5 days and accumulates 41mm (1.61") of snow.
When it does not snow in Heverlee?
In Heverlee, snow does not fall in April through October.
When are the longest days in Heverlee?
With an average of 16h and 24min of daylight, June has the longest days of the year in Heverlee, Belgium.
What are the months with the highest UV index in Heverlee?
The months with the highest UV index in Heverlee are June through August, with an average maximum UV index of 5.
What is the hottest time of year in Heverlee?
July, with its average high-temperature of 23.2°C (73.8°F) and an average low-temperature of 13.7°C (56.7°F), holds the record as the warmest month in Heverlee.
What month has the most sunshine in Heverlee?
With an average of 9.2h of sunshine, July has the most sunshine of the year.
What is the least humid month in Heverlee?
The least humid month is August, with an average relative humidity of 74%.
What is the driest month in Heverlee?
September is the month with the least rainfall in Heverlee, Belgium. Rain falls for 8.5 days and accumulates 16mm (0.63") of precipitation.
When is Daylight Saving Time (DST) in Heverlee?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the most humid month in Heverlee?
With an average relative humidity of 88%, December is the most humid month in Heverlee, Belgium.
What is the rainiest month in Heverlee?
The month with the most rainfall in Heverlee is December, when the rain falls for 18.5 days and typically aggregates up to 57mm (2.24") of precipitation.
What is the month with the shortest days in Heverlee?
December has the shortest days of the year, with an average of 8h and 0min of daylight.
What is the month with the least sunshine in Heverlee?
With an average of 3.8h of sunshine, December has the least sunshine of the year.
Average temperature
Heverlee, Belgium
The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (4.9°C).
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure
Heverlee, Belgium
- Average pressure in January:
1016.2mbar - Average pressure in February:
1015.2mbar - Average pressure in March:
1016mbar - Average pressure in April:
1015.8mbar - Average pressure in May:
1016.4mbar - Average pressure in June:
1016.2mbar
- Average pressure in July:
1015.7mbar - Average pressure in August:
1015.6mbar - Average pressure in September:
1017.5mbar - Average pressure in October:
1016.5mbar - Average pressure in November:
1012.5mbar - Average pressure in December:
1016.3mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed
Heverlee, Belgium
- Average wind speed in January:
17.2km/h - Average wind speed in February:
17.7km/h - Average wind speed in March:
15.7km/h - Average wind speed in April:
12.6km/h - Average wind speed in May:
12.4km/h - Average wind speed in June:
12.2km/h
- Average wind speed in July:
11.9km/h - Average wind speed in August:
11.7km/h - Average wind speed in September:
11.9km/h - Average wind speed in October:
13.9km/h - Average wind speed in November:
15.7km/h - Average wind speed in December:
18.1km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity
Heverlee, Belgium
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Heverlee, Belgium
The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days
Heverlee, Belgium
- Average rainfall days in January:
17 days - Average rainfall days in February:
14.7 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
11.7 days - Average rainfall days in August:
10.5 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
16.5 days - Average rainfall days in December:
18.5 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is September (8.5 days).
Average snowfall
Heverlee, Belgium
The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Heverlee, Belgium
- Average snowfall days in January:
4.4 days - Average snowfall days in February:
5 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
2.6 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Heverlee, Belgium
- Average daylight in January:
8h and 3min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 3min - Average daylight in June:
16h and 2min
- Average daylight in July:
16h and 0min - Average daylight in August:
14h and 3min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
9h and 0min - Average daylight in December:
8h and 0min
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 0min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
8h and 4min
- Average sunshine in July:
9h and 1min - Average sunshine in August:
9h and 0min - Average sunshine in September:
7h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
4h and 1min - Average sunshine in December:
3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days
Heverlee, Belgium
- Average sunshine days in January:
8.8 days - Average sunshine days in February:
8.7 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
16 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
16.4 days
- Average sunshine days in July:
17.4 days - Average sunshine days in August:
18.6 days - Average sunshine days in September:
20.1 days - Average sunshine days in October:
15.6 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
9 days
The month with the most sunshine days is September (20.1 days).
The month with the least sunshine days is February (8.7 days).
Average UV index
Heverlee, Belgium
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Heverlee, Belgium
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility
Heverlee, Belgium
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
