Watou climate — normals and trends
Watou has a temperate oceanic climate, averaging 10.4 °C annually with 656 mm of rain per year.
Climate normals · ERA5
WatouFlanders
- coords
- 50.86°, 2.62°
- 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
10.4°C
Average daily high
13.6°C
Average daily low
7.2°C
Annual rainfall
656mm
Sunshine / day
8.1h
Mean relative humidity
80%
Average peak wind
19.6km/h
Seasonal range
13.8°C
Frost days (< 0 °C)
37 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
13.0 cm
Average feels-like high
11.2 °C
Average feels-like low
4.4 °C
Average peak gust
40.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.1 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.48 · 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
38.1 °C
25 July 2019
Coldest day
-20.8 °C
6 January 1979
Wettest day
52 mm
29 August 1996
Windiest day
62.1 km/h
25 January 1990
Strongest gust
132.1 km/h
18 January 2007
Hottest feels-like
39.6 °C
24 June 2026
Coldest feels-like
-25.4 °C
6 January 1979
Snowiest day
14.3 cm
11 December 2017
Sunniest day
16.0 h
22 June 1941
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 | 5.9 °C | +0.2 °C | 117 mm | +60 mm |
| Feb | 7.0 °C | +0.3 °C | 42 mm | -5 mm |
| Mar | 12.5 °C | +2.8 °C | 7 mm | -42 mm |
| Apr | 16.7 °C | +3.8 °C | 25 mm | -23 mm |
| May | 17.9 °C | +1.4 °C | 30 mm | -28 mm |
| Jun | 22.6 °C | +3.3 °C | 44 mm | -11 mm |
| Jul | 23.0 °C | +1.7 °C | 77 mm | +22 mm |
| Aug | 22.8 °C | +1.6 °C | 23 mm | -33 mm |
| Sep | 19.0 °C | +0.3 °C | 41 mm | -12 mm |
| Oct | 15.1 °C | +0.5 °C | 62 mm | +4 mm |
| Nov | 11.0 °C | +1.4 °C | 55 mm | -7 mm |
| Dec | 8.6 °C | +1.9 °C | 38 mm | -20 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.
Watou (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.4 °C and it receives 656 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 (17.5 °C on average) and the coldest is January (3.6 °C). Rainfall peaks in November.
Watou averages 37 frost days, 2 hot days (≥ 30 °C) and 132 rainy days per year.
Watou has warmed by +2.0 °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 54 to 20 per year over the period.
The hottest day of the period reached 38.1 °C (on 25 July 2019) and the coldest -20.8 °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 Watou?
Watou has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.4 °C and it receives 656 mm of precipitation per year.
What is the hottest day ever recorded in Watou?
The hottest day measured in Watou between 1940 and 2025 was 25 July 2019, reaching 38.1 °C.
What is the coldest day in Watou?
The coldest day measured in Watou between 1940 and 2025 was 6 January 1979, at -20.8 °C.
Does it snow in Watou?
Yes. Watou gets on average 13.0 cm of snow per year and has around 37 frost days.
Has the climate of Watou warmed?
Yes: Watou warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Watou?
The wettest day measured in Watou between 1940 and 2025 was 29 August 1996, with 52 mm of rain in 24 hours.
What was the windiest day in Watou?
The windiest day measured in Watou between 1940 and 2025 was 25 January 1990, with winds reaching 62.1 km/h.
What is the warmest month in Watou?
The warmest month in Watou is July (17.5 °C on average); the coldest is January (3.6 °C).
How much does it rain in Watou?
Watou receives on average 656 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Watou?
Watou gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Watou?
The heaviest 24-hour snowfall measured in Watou between 1940 and 2025 was 11 December 2017, with 14.3 cm.
Are there tropical nights in Watou?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Watou.
What was the most extreme apparent temperature in Watou?
In Watou, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 24 June 2026, and the lowest was -25.4 °C on 6 January 1979.
These forecasts and records come from our own weather API. Developer documentation →
Compare Watou with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Watou