Bas-Oha climate — normals and trends
Bas-Oha has a temperate oceanic climate, averaging 9.5 °C annually with 853 mm of rain per year.
Climate normals · ERA5
Bas-OhaWallonia
- coords
- 50.53°, 5.19°
- 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
9.5°C
Average daily high
12.9°C
Average daily low
6.0°C
Annual rainfall
853mm
Sunshine / day
7.5h
Mean relative humidity
81%
Average peak wind
19.9km/h
Seasonal range
15.5°C
Frost days (< 0 °C)
59 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
160 d/yr
Annual snowfall
34.6 cm
Average feels-like high
10.3 °C
Average feels-like low
3.0 °C
Average peak gust
38.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.7 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 = 0.44 · 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
-22.0 °C
3 February 1942
Wettest day
58 mm
22 October 1986
Windiest day
58.9 km/h
24 November 1984
Strongest gust
124.9 km/h
18 January 2007
Hottest feels-like
40.3 °C
25 July 2019
Coldest feels-like
-27.6 °C
3 February 1942
Snowiest day
13.2 cm
15 February 1987
Sunniest day
15.6 h
21 June 2025
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 | 4.6 °C | +0.7 °C | 170 mm | +95 mm |
| Feb | 6.6 °C | +1.4 °C | 43 mm | -24 mm |
| Mar | 12.7 °C | +3.7 °C | 12 mm | -56 mm |
| Apr | 16.5 °C | +3.8 °C | 45 mm | -18 mm |
| May | 18.9 °C | +2.3 °C | 57 mm | -16 mm |
| Jun | 23.3 °C | +3.8 °C | 74 mm | -2 mm |
| Jul | 23.1 °C | +1.7 °C | 121 mm | +42 mm |
| Aug | 23.5 °C | +2.3 °C | 41 mm | -33 mm |
| Sep | 18.7 °C | +0.6 °C | 94 mm | +31 mm |
| Oct | 13.5 °C | -0.1 °C | 87 mm | +22 mm |
| Nov | 9.8 °C | +1.7 °C | 65 mm | -9 mm |
| Dec | 7.9 °C | +2.9 °C | 29 mm | -50 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.
Bas-Oha (Belgium) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.5 °C and it receives 853 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 (17.3 °C on average) and the coldest is January (1.8 °C). Rainfall peaks in July.
Bas-Oha averages 59 frost days, 3 hot days (≥ 30 °C) and 160 rainy days per year.
Bas-Oha 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 76 to 42 per year over the period.
The hottest day of the period reached 38.1 °C (on 25 July 2019) and the coldest -22.0 °C (on 3 February 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.
Frequently asked questions
What is the climate of Bas-Oha?
Bas-Oha has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.5 °C and it receives 853 mm of precipitation per year.
What is the hottest day ever recorded in Bas-Oha?
The hottest day measured in Bas-Oha between 1940 and 2025 was 25 July 2019, reaching 38.1 °C.
What is the coldest day in Bas-Oha?
The coldest day measured in Bas-Oha between 1940 and 2025 was 3 February 1942, at -22.0 °C.
Does it snow in Bas-Oha?
Yes. Bas-Oha gets on average 34.6 cm of snow per year and has around 59 frost days.
Has the climate of Bas-Oha warmed?
Yes: Bas-Oha warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bas-Oha?
The wettest day measured in Bas-Oha between 1940 and 2025 was 22 October 1986, with 58 mm of rain in 24 hours.
What was the windiest day in Bas-Oha?
The windiest day measured in Bas-Oha between 1940 and 2025 was 24 November 1984, with winds reaching 58.9 km/h.
What is the warmest month in Bas-Oha?
The warmest month in Bas-Oha is July (17.3 °C on average); the coldest is January (1.8 °C).
How much does it rain in Bas-Oha?
Bas-Oha receives on average 853 mm of precipitation per year, spread over about 160 rainy days.
Is it sunny in Bas-Oha?
Bas-Oha 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 Bas-Oha?
The heaviest 24-hour snowfall measured in Bas-Oha between 1940 and 2025 was 15 February 1987, with 13.2 cm.
Are there tropical nights in Bas-Oha?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Bas-Oha.
What was the most extreme apparent temperature in Bas-Oha?
In Bas-Oha, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 25 July 2019, and the lowest was -27.6 °C on 3 February 1942.
These forecasts and records come from our own weather API. Developer documentation →
Compare Bas-Oha with another city
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Nearby cities
The climate around Bas-Oha