Climate and monthly weather forecastHeelsum, Netherlands
Climate and monthly weather forecast
Weather in January
January, like December, in Heelsum, Netherlands, is another cold winter month, with temperature in the range of an average low of 1°C (33.8°F) and an average high of 4.6°C (40.3°F). Heelsum's January weather, with an average high temperature of 4.6°C (40.3°F) and an average low temperature of 1°C (33.8°F), tends to be the coldest of the year. Weather in January »Weather in February
February, the last month of the winter in Heelsum, is also a wintry month, with temperature in the range of an average high of 5.8°C (42.4°F) and an average low of 1°C (33.8°F). The onset of February brings with it an average high-temperature of a still wintry 5.8°C (42.4°F), showing a negligible variation from the month before. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Heelsum, Netherlands, with an average temperature ranging between min 2.9°C (37.2°F) and max 9.9°C (49.8°F). Heelsum's weather in March presents a minor rise in the average high-temperature, moving from a wintry 5.8°C (42.4°F) in February to a frosty 9.9°C (49.8°F). Weather in March »Weather in April
April is a mild spring month in Heelsum, Netherlands, with an average temperature fluctuating between 5.8°C (42.4°F) and 14.6°C (58.3°F). With the onset of April, Heelsum's average high-temperature experiences a slight rise, moving from March's chilly 9.9°C (49.8°F) to a refreshing 14.6°C (58.3°F). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Heelsum, Netherlands, with temperature in the range of an average high of 17.3°C (63.1°F) and an average low of 8.5°C (47.3°F). May denotes a minimal variation in the average high-temperature to a still refreshing 17.3°C (63.1°F) from April's 14.6°C (58.3°F). Weather in May »Weather in June
June, the first month of the summer in Heelsum, is a pleasant month, with temperature in the range of an average high of 20.3°C (68.5°F) and an average low of 11.5°C (52.7°F). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's refreshing 17.3°C (63.1°F) to a pleasant 20.3°C (68.5°F). Weather in June »Weather in July
July, like June, is another pleasant summer month in Heelsum, Netherlands, with an average temperature ranging between max 22.3°C (72.1°F) and min 13.4°C (56.1°F). July and August are identified as the warmest months, with an average high-temperature of 22.3°C (72.1°F). Weather in July »Weather in August
August, the last month of the summer in Heelsum, is another pleasant month, with an average temperature fluctuating between 13.8°C (56.8°F) and 22.3°C (72.1°F). July and August, when the average high-temperature reaches 22.3°C (72.1°F), are the warmest months. Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Heelsum, Netherlands, with an average temperature varying between 18.7°C (65.7°F) and 10.7°C (51.3°F). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a pleasant 22.3°C (72.1°F) in August to a comfortable 18.7°C (65.7°F). Weather in September »Weather in October
October, the same as September, in Heelsum, Netherlands, is another refreshing autumn month, with an average temperature fluctuating between 14.3°C (57.7°F) and 7.9°C (46.2°F). The transition into October is accompanied by a slight temperature decrease, with the average high-temperature shifting from a refreshing 18.7°C (65.7°F) in September to a mild 14.3°C (57.7°F). Weather in October »Weather in November
November, the last month of the autumn in Heelsum, is another chilly month, with temperature in the range of an average low of 4.7°C (40.5°F) and an average high of 9.1°C (48.4°F). As October transitions to November, the average high-temperature falls from a mild 14.3°C (57.7°F) to a frosty 9.1°C (48.4°F). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Heelsum, Netherlands, with an average temperature ranging between max 5.8°C (42.4°F) and min 2.4°C (36.3°F). The onset of December is marked by a minor decrease in temperature, transitioning from a frosty 9.1°C (48.4°F) in November to a wintry 5.8°C (42.4°F). Weather in December »Updated: Jan 26, 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
January, with its average high-temperature of 4.6°C (40.3°F) and an average low-temperature of 1°C (33.8°F), holds the record as the coldest month.
Throughout the year, in Heelsum, there are 193.3 rainfall days, and 523mm (20.59") of precipitation is accumulated.
January through April, November and December are months with snowfall in Heelsum.
Throughout the year, there are 14.5 snowfall days, and 110mm (4.33") of snow is accumulated.
The months with the lowest UV index in Heelsum are January, February, November and December, with an average maximum UV index of 2.
February is the month with the most snowfall in Heelsum. Snow falls for 4.7 days and accumulates 39mm (1.54") of snow.
April is the least humid month, with an average relative humidity of 75%.
April is the month with the least rainfall in Heelsum. Rain falls for 14.8 days and accumulates 27mm (1.06") of precipitation.
In Heelsum, snow does not fall in May through October.
June is the month with the most rainfall in Heelsum. Rain falls for 16.9 days and accumulates 53mm (2.09") of precipitation.
June has the longest days of the year, with an average of 16h and 36min of daylight.
June through August, with an average maximum UV index of 5, are months with the highest UV index in Heelsum, Netherlands.
Heelsum witnesses its peak temperatures during July and August, when the average high-temperature reaches 22.3°C (72.1°F).
With an average of 9h of sunshine, July has the most sunshine of the year.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Heelsum, 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.
December is the most humid month in Heelsum, Netherlands, with an average relative humidity of 89%.
With an average of 7h and 48min of daylight, December has the shortest days of the year in Heelsum.
December has the least sunshine of the year, with an average of 3.4h of sunshine.
Average temperature
Heelsum, Netherlands
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 (4.6°C).
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1°C).
Average pressure
Heelsum, Netherlands
- Average pressure in January:
1015.1mbar - Average pressure in February:
1014.5mbar - Average pressure in March:
1015.7mbar - Average pressure in April:
1016mbar - Average pressure in May:
1016.5mbar - Average pressure in June:
1016.1mbar
- Average pressure in July:
1015.3mbar - Average pressure in August:
1015.3mbar - Average pressure in September:
1017.1mbar - Average pressure in October:
1015.9mbar - Average pressure in November:
1011.8mbar - Average pressure in December:
1014.9mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed
Heelsum, Netherlands
- Average wind speed in January:
17.2km/h - Average wind speed in February:
17.5km/h - Average wind speed in March:
15.6km/h - Average wind speed in April:
13km/h - Average wind speed in May:
12.9km/h - Average wind speed in June:
12.4km/h
- Average wind speed in July:
11.8km/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:
15.4km/h - Average wind speed in December:
17.7km/h
The windiest month (with the highest average wind speed) is December (17.7km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity
Heelsum, Netherlands
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall
Heelsum, Netherlands
The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days
Heelsum, Netherlands
- Average rainfall days in January:
16.8 days - Average rainfall days in February:
14.4 days - Average rainfall days in March:
15.5 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
18.7 days - Average rainfall days in August:
17 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.4 days - Average rainfall days in November:
15.9 days - Average rainfall days in December:
17.3 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (13.5 days).
Average snowfall
Heelsum, Netherlands
The month with the highest snowfall is February (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Heelsum, Netherlands
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
1.2 days - Average snowfall days in April:
0.4 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:
0.4 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Heelsum, Netherlands
- Average daylight in January:
8h and 24min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 42min - Average daylight in June:
16h and 36min
- Average daylight in July:
16h and 12min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 48min - Average daylight in December:
7h and 48min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 6min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
8h and 48min - Average sunshine in September:
7h and 12min - Average sunshine in October:
4h and 54min - Average sunshine in November:
4h and 0min - Average sunshine in December:
3h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days
Heelsum, Netherlands
- Average sunshine days in January:
9.8 days - Average sunshine days in February:
9.1 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
12.7 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
13.3 days - Average sunshine days in November:
10.9 days - Average sunshine days in December:
7.9 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is December (7.9 days).
Average UV index
Heelsum, Netherlands
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
Heelsum, Netherlands
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility
Heelsum, Netherlands
The months with the highest visibility are January, February, March, April, May, June, July, August, October and November (9km).
The months with the lowest visibility are September and December (8km).
