Heinsch climate — normals and trends
Heinsch has a temperate oceanic climate, averaging 8.6 °C annually with 907 mm of rain per year.
Climate normals · ERA5
HeinschWallonia
- coords
- 49.70°, 5.75°
- 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
8.6°C
Average daily high
11.9°C
Average daily low
5.4°C
Annual rainfall
907mm
Sunshine / day
7.5h
Mean relative humidity
82%
Average peak wind
19.0km/h
Seasonal range
16.4°C
Frost days (< 0 °C)
71 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
154 d/yr
Annual snowfall
51.7 cm
Average feels-like high
9.3 °C
Average feels-like low
2.3 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.0 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
36.6 °C
25 July 2019
Coldest day
-19.7 °C
22 January 1940
Wettest day
66 mm
11 May 1970
Windiest day
56.2 km/h
24 November 1984
Strongest gust
127.4 km/h
24 November 1984
Hottest feels-like
37.3 °C
25 July 2019
Coldest feels-like
-25.9 °C
6 January 1947
Snowiest day
13.0 cm
13 December 1952
Sunniest day
15.4 h
1 July 2018
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 | 4.3 °C | +1.9 °C | 144 mm | +65 mm |
| Feb | 5.1 °C | +1.2 °C | 50 mm | -19 mm |
| Mar | 12.0 °C | +4.0 °C | 15 mm | -56 mm |
| Apr | 15.6 °C | +3.6 °C | 59 mm | -9 mm |
| May | 18.2 °C | +2.2 °C | 48 mm | -34 mm |
| Jun | 23.6 °C | +4.5 °C | 70 mm | -10 mm |
| Jul | 22.6 °C | +1.6 °C | 120 mm | +43 mm |
| Aug | 23.4 °C | +2.7 °C | 41 mm | -35 mm |
| Sep | 17.6 °C | +0.2 °C | 162 mm | +93 mm |
| Oct | 12.8 °C | +0.3 °C | 108 mm | +37 mm |
| Nov | 8.5 °C | +1.9 °C | 62 mm | -17 mm |
| Dec | 6.5 °C | +2.9 °C | 34 mm | -51 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.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Heinsch (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.6 °C and it receives 907 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 (16.8 °C on average) and the coldest is January (0.4 °C). Rainfall peaks in December.
Heinsch averages 71 frost days, 2 hot days (≥ 30 °C) and 154 rainy days per year.
Heinsch has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 86 to 56 per year over the period.
The hottest day of the period reached 36.6 °C (on 25 July 2019) and the coldest -19.7 °C (on 22 January 1940).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Compare Heinsch with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Heinsch
Other cities — Belgium
Frequently asked questions
What is the climate of Heinsch?
Heinsch has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.6 °C and it receives 907 mm of precipitation per year.
What is the hottest day ever recorded in Heinsch?
The hottest day measured in Heinsch between 1940 and 2025 was 25 July 2019, reaching 36.6 °C.
What is the coldest day in Heinsch?
The coldest day measured in Heinsch between 1940 and 2025 was 22 January 1940, at -19.7 °C.
Does it snow in Heinsch?
Yes. Heinsch gets on average 51.7 cm of snow per year and has around 71 frost days.
Has the climate of Heinsch warmed?
Yes: Heinsch warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Heinsch?
The wettest day measured in Heinsch between 1940 and 2025 was 11 May 1970, with 66 mm of rain in 24 hours.
What was the windiest day in Heinsch?
The windiest day measured in Heinsch between 1940 and 2025 was 24 November 1984, with winds reaching 56.2 km/h.
What is the warmest month in Heinsch?
The warmest month in Heinsch is July (16.8 °C on average); the coldest is January (0.4 °C).
How much does it rain in Heinsch?
Heinsch receives on average 907 mm of precipitation per year, spread over about 154 rainy days.
Is it sunny in Heinsch?
Heinsch gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Heinsch?
The heaviest 24-hour snowfall measured in Heinsch between 1940 and 2025 was 13 December 1952, with 13.0 cm.
Are there tropical nights in Heinsch?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Heinsch.
What was the most extreme apparent temperature in Heinsch?
In Heinsch, between 1940 and 2025, the highest apparent temperature reached 37.3 °C on 25 July 2019, and the lowest was -25.9 °C on 6 January 1947.
These forecasts and records come from our own weather API. Developer documentation →