Hainin climate — normals and trends
Hainin has a temperate oceanic climate, averaging 10.3 °C annually with 733 mm of rain per year.
Climate normals · ERA5
HaininWallonia
- coords
- 50.43°, 3.77°
- 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
10.3°C
Average daily high
13.7°C
Average daily low
6.7°C
Annual rainfall
733mm
Sunshine / day
7.7h
Mean relative humidity
80%
Average peak wind
19.2km/h
Seasonal range
15.0°C
Frost days (< 0 °C)
48 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
142 d/yr
Annual snowfall
16.5 cm
Average feels-like high
11.4 °C
Average feels-like low
3.9 °C
Average peak gust
37.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.8 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 = 0.43 · 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
39.7 °C
25 July 2019
Coldest day
-19.7 °C
21 February 1956
Wettest day
57 mm
29 August 1996
Windiest day
56.1 km/h
25 January 1990
Strongest gust
123.8 km/h
24 November 1984
Hottest feels-like
40.7 °C
26 June 2026
Coldest feels-like
-25.4 °C
8 January 1985
Snowiest day
10.4 cm
10 December 1990
Sunniest day
15.9 h
25 June 2020
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 | 5.2 °C | +0.1 °C | 157 mm | +93 mm |
| Feb | 7.1 °C | +0.8 °C | 51 mm | -5 mm |
| Mar | 13.2 °C | +3.3 °C | 13 mm | -47 mm |
| Apr | 17.7 °C | +4.3 °C | 18 mm | -36 mm |
| May | 19.7 °C | +2.5 °C | 50 mm | -16 mm |
| Jun | 24.2 °C | +4.0 °C | 51 mm | -11 mm |
| Jul | 24.5 °C | +2.5 °C | 67 mm | +3 mm |
| Aug | 24.8 °C | +2.9 °C | 22 mm | -39 mm |
| Sep | 20.0 °C | +1.0 °C | 44 mm | -10 mm |
| Oct | 14.8 °C | +0.3 °C | 73 mm | +14 mm |
| Nov | 10.4 °C | +1.4 °C | 62 mm | -4 mm |
| Dec | 8.4 °C | +2.4 °C | 31 mm | -36 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.
Hainin (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 733 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 (17.9 °C on average) and the coldest is January (2.9 °C). Rainfall peaks in December.
Hainin averages 48 frost days, 3 hot days (≥ 30 °C) and 142 rainy days per year.
Hainin has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 64 to 32 per year over the period.
The hottest day of the period reached 39.7 °C (on 25 July 2019) and the coldest -19.7 °C (on 21 February 1956).
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 Hainin?
Hainin has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 733 mm of precipitation per year.
What is the hottest day ever recorded in Hainin?
The hottest day measured in Hainin between 1940 and 2025 was 25 July 2019, reaching 39.7 °C.
What is the coldest day in Hainin?
The coldest day measured in Hainin between 1940 and 2025 was 21 February 1956, at -19.7 °C.
Does it snow in Hainin?
Yes. Hainin gets on average 16.5 cm of snow per year and has around 48 frost days.
Has the climate of Hainin warmed?
Yes: Hainin warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hainin?
The wettest day measured in Hainin between 1940 and 2025 was 29 August 1996, with 57 mm of rain in 24 hours.
What was the windiest day in Hainin?
The windiest day measured in Hainin between 1940 and 2025 was 25 January 1990, with winds reaching 56.1 km/h.
What is the warmest month in Hainin?
The warmest month in Hainin is July (17.9 °C on average); the coldest is January (2.9 °C).
How much does it rain in Hainin?
Hainin receives on average 733 mm of precipitation per year, spread over about 142 rainy days.
Is it sunny in Hainin?
Hainin gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.
What is the biggest single-day snowfall in Hainin?
The heaviest 24-hour snowfall measured in Hainin between 1940 and 2025 was 10 December 1990, with 10.4 cm.
Are there tropical nights in Hainin?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Hainin.
What was the most extreme apparent temperature in Hainin?
In Hainin, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 26 June 2026, and the lowest was -25.4 °C on 8 January 1985.
These forecasts and records come from our own weather API. Developer documentation →
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Nearby cities
The climate around Hainin