Nijlen climate — normals and trends
Nijlen (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 754 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (18.0 °C on average) and the coldest is January (2.8 °C). Rainfall peaks in July.
Nijlen averages 45 frost days, 4 hot days (≥ 30 °C) and 145 rainy days per year.
Nijlen has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 60 to 30 per year over the period.
The hottest day of the period reached 40.1 °C (on 25 July 2019) and the coldest -22.3 °C (on 27 January 1942).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
NijlenFlanders
- coords
- 51.16°, 4.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.3°C
Average daily high
13.7°C
Average daily low
7.1°C
Annual rainfall
754mm
Sunshine / day
7.6h
Mean relative humidity
79%
Average peak wind
18.7km/h
Seasonal range
15.2°C
Frost days (< 0 °C)
45 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
145 d/yr
Annual snowfall
16.6 cm
Average feels-like high
11.3 °C
Average feels-like low
4.3 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.46 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.1 °C
25 July 2019
Coldest day
-22.3 °C
27 January 1942
Wettest day
54 mm
1 August 1994
Windiest day
58.6 km/h
25 January 1990
Strongest gust
129.6 km/h
18 January 2007
Hottest feels-like
41.7 °C
25 July 2019
Coldest feels-like
-27.6 °C
27 January 1942
Snowiest day
13.2 cm
27 December 2014
Sunniest day
15.9 h
1 July 2018
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 5.5 °C | +0.6 °C | 128 mm | +66 mm |
| Feb | 7.2 °C | +1.2 °C | 42 mm | -13 mm |
| Mar | 13.2 °C | +3.5 °C | 12 mm | -47 mm |
| Apr | 17.6 °C | +4.1 °C | 30 mm | -23 mm |
| May | 20.2 °C | +2.6 °C | 38 mm | -28 mm |
| Jun | 24.2 °C | +3.8 °C | 49 mm | -18 mm |
| Jul | 24.5 °C | +2.5 °C | 71 mm | -3 mm |
| Aug | 24.6 °C | +2.7 °C | 24 mm | -43 mm |
| Sep | 20.1 °C | +1.2 °C | 58 mm | 0 mm |
| Oct | 14.7 °C | +0.3 °C | 84 mm | +23 mm |
| Nov | 10.7 °C | +1.7 °C | 60 mm | -5 mm |
| Dec | 8.5 °C | +2.5 °C | 29 mm | -37 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Nijlen?
Nijlen has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 754 mm of precipitation per year.
What is the hottest day ever recorded in Nijlen?
The hottest day measured in Nijlen between 1940 and 2025 was 25 July 2019, reaching 40.1 °C.
What is the coldest day in Nijlen?
The coldest day measured in Nijlen between 1940 and 2025 was 27 January 1942, at -22.3 °C.
Does it snow in Nijlen?
Yes. Nijlen gets on average 16.6 cm of snow per year and has around 45 frost days.
Has the climate of Nijlen warmed?
Yes: Nijlen warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nijlen?
The wettest day measured in Nijlen between 1940 and 2025 was 1 August 1994, with 54 mm of rain in 24 hours.
What was the windiest day in Nijlen?
The windiest day measured in Nijlen between 1940 and 2025 was 25 January 1990, with winds reaching 58.6 km/h.
What is the warmest month in Nijlen?
The warmest month in Nijlen is July (18.0 °C on average); the coldest is January (2.8 °C).
How much does it rain in Nijlen?
Nijlen receives on average 754 mm of precipitation per year, spread over about 145 rainy days.
Is it sunny in Nijlen?
Nijlen gets on average 7.6 hours of sunshine per day, roughly 2,774 hours per year over 1940-2025.
What is the biggest single-day snowfall in Nijlen?
The heaviest 24-hour snowfall measured in Nijlen between 1940 and 2025 was 27 December 2014, with 13.2 cm.
Are there tropical nights in Nijlen?
Yes: Nijlen has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nijlen?
In Nijlen, between 1940 and 2025, the highest apparent temperature reached 41.7 °C on 25 July 2019, and the lowest was -27.6 °C on 27 January 1942.
Compare Nijlen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nijlen