Zarren climate — normals and trends
Zarren has a temperate oceanic climate, averaging 10.5 °C annually with 701 mm of rain per year.
Climate normals · ERA5
ZarrenFlanders
- coords
- 51.02°, 2.96°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
10.5°C
Average daily high
13.6°C
Average daily low
7.3°C
Annual rainfall
701mm
Sunshine / day
8.0h
Mean relative humidity
80%
Average peak wind
21.1km/h
Seasonal range
14.0°C
Frost days (< 0 °C)
36 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
12.3 cm
Average feels-like high
11.1 °C
Average feels-like low
4.3 °C
Average peak gust
40.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.3 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.47 · 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).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
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
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
38.5 °C
25 July 2019
Coldest day
-19.3 °C
6 January 1979
Wettest day
67 mm
29 August 1996
Windiest day
65.5 km/h
25 January 1990
Strongest gust
129.6 km/h
18 January 2007
Hottest feels-like
39.9 °C
25 July 2019
Coldest feels-like
-23.9 °C
6 January 1979
Snowiest day
14.3 cm
11 December 2017
Sunniest day
16.0 h
25 June 2002
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 6.0 °C | +0.3 °C | 110 mm | +51 mm |
| Feb | 7.1 °C | +0.5 °C | 48 mm | -0 mm |
| Mar | 12.5 °C | +2.8 °C | 6 mm | -47 mm |
| Apr | 16.6 °C | +3.8 °C | 24 mm | -25 mm |
| May | 18.1 °C | +1.6 °C | 39 mm | -23 mm |
| Jun | 22.8 °C | +3.5 °C | 52 mm | -8 mm |
| Jul | 22.8 °C | +1.6 °C | 109 mm | +46 mm |
| Aug | 22.8 °C | +1.5 °C | 31 mm | -32 mm |
| Sep | 19.5 °C | +0.7 °C | 39 mm | -19 mm |
| Oct | 15.2 °C | +0.6 °C | 67 mm | +7 mm |
| Nov | 11.0 °C | +1.4 °C | 55 mm | -10 mm |
| Dec | 8.8 °C | +2.1 °C | 34 mm | -27 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Zarren (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 701 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 (17.6 °C on average) and the coldest is January (3.6 °C). Rainfall peaks in November.
Zarren averages 36 frost days, 2 hot days (≥ 30 °C) and 139 rainy days per year.
Zarren has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 52 to 20 per year over the period.
The hottest day of the period reached 38.5 °C (on 25 July 2019) and the coldest -19.3 °C (on 6 January 1979).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Frequently asked questions
What is the climate of Zarren?
Zarren has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 701 mm of precipitation per year.
What is the hottest day ever recorded in Zarren?
The hottest day measured in Zarren between 1940 and 2025 was 25 July 2019, reaching 38.5 °C.
What is the coldest day in Zarren?
The coldest day measured in Zarren between 1940 and 2025 was 6 January 1979, at -19.3 °C.
Does it snow in Zarren?
Yes. Zarren gets on average 12.3 cm of snow per year and has around 36 frost days.
Has the climate of Zarren warmed?
Yes: Zarren warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zarren?
The wettest day measured in Zarren between 1940 and 2025 was 29 August 1996, with 67 mm of rain in 24 hours.
What was the windiest day in Zarren?
The windiest day measured in Zarren between 1940 and 2025 was 25 January 1990, with winds reaching 65.5 km/h.
What is the warmest month in Zarren?
The warmest month in Zarren is July (17.6 °C on average); the coldest is January (3.6 °C).
How much does it rain in Zarren?
Zarren receives on average 701 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Zarren?
Zarren gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zarren?
The heaviest 24-hour snowfall measured in Zarren between 1940 and 2025 was 11 December 2017, with 14.3 cm.
Are there tropical nights in Zarren?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Zarren.
What was the most extreme apparent temperature in Zarren?
In Zarren, between 1940 and 2025, the highest apparent temperature reached 39.9 °C on 25 July 2019, and the lowest was -23.9 °C on 6 January 1979.
These forecasts and records come from our own weather API. Developer documentation →
Compare Zarren with another city
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Nearby cities
The climate around Zarren