Heerlen Climate by Month
The temperature in Heerlen can vary greatly throughout the year.
The temperatures shift from warm
to cold.
It receives mid-range precipitation levels.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
Depending on the time of the year, temperatures range from comfortable to chilly in Heerlen. Average daytime temperatures range from a comfortable 24°C in July, the warmest time of the year, to a chilly 7°C during cooler months like January. At night, temperatures typically average around 1°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Generally, Heerlen has a moderate amount of precipitation, averaging 869 mm of rain/snowfall annually. Year-round, Heerlen has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 85 mm, and the driest month, April, with 56 mm, is minimal.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Heerlen. While July receives considerable daily sunshine with up to 7.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.8 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is moderate throughout the year in Heerlen.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Heerlen ranges from 4°C in April to 5°C in January.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Heerlen in the Netherlands
During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
July has an average maximum temperature of 24°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 7°C.
December tops the wettest month list with 85 mm of rainfall.
April is the driest month with 56 mm of precipitation.
July is the sunniest month with an average of 211 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
