Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The arrival of April introduces a minor uplift in high-temperatures, adjusting from a chilly 9.8°C (49.6°F) in March to a moderate 14.7°C (58.5°F). During the month of April, Heerlen's nighttime temperature lowers to an average of 5.6°C (42.1°F).Humidity
The least humid month is April, with an average relative humidity of 75%.Rainfall
April is the month with the least rainfall. Rain falls for 13 days and accumulates 22mm (0.87") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In April, the average length of the day is 13h and 52min.On the first day of April in Heerlen, sunrise is at 07:10 and sunset at 20:09. On the last day of the month, sunrise is at 06:10 and sunset at 20:56 CEST.
Sunshine
The average sunshine in April is 8.3h.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Boost your sun resistance with garments that are densely woven yet spacious. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Heerlen?
What is the least humid month in Heerlen?
What is the average humidity in April in Heerlen?
What is the driest month in Heerlen?
How much does it rain in Heerlen in April?
When it does not snow in Heerlen?
Does it snow in Heerlen in April?
What is the average length of the day in April in Heerlen?
What time are sunrise and sunset in April in Heerlen?
How many hours of sunshine does Heerlen have in April?
What is the UV index reading in April in Heerlen?
Average temperature in April
Heerlen, Netherlands
- Average high temperature in April: 14.7°C
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in April: 5.6°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (0.4°C).
Average pressure in April
Heerlen, Netherlands
- Average pressure in April: 1015.8mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in April
Heerlen, Netherlands
- Average wind speed in April: 12.2km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in April
Heerlen, Netherlands
- Average humidity in April: 75%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in April
Heerlen, Netherlands
- Average rainfall in April: 22mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in April
Heerlen, Netherlands
- Average rainfall days in April: 13 days
The months with the highest number of rainy days are May and July (18 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in April
Heerlen, Netherlands
- Average snowfall in April: 0mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Heerlen, Netherlands
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Heerlen, Netherlands
- Average daylight in April: 13h and 5min
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 April: 8h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in April
Heerlen, Netherlands
- Average sunshine days in April: 13.3 days
The months with the most sunshine days are September and October (15.5 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in April
Heerlen, Netherlands
- Average UV index in April: 3
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 April
Heerlen, Netherlands
- Average cloud cover in April: 42
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 April
Heerlen, Netherlands
- Average visibility in April: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
Heerlen, Netherlands
Weather forecast for your location
2. Allow the app to use your location