Béthune climate — normals and trends
Béthune (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 666 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 (3.3 °C). Rainfall peaks in May.
Béthune averages 41 frost days, 2 hot days (≥ 30 °C) and 134 rainy days per year.
Béthune 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 57 to 25 per year over the period.
The hottest day of the period reached 40.3 °C (on 25 July 2019) and the coldest -21.3 °C (on 8 January 1985).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BéthuneHauts-de-France
- coords
- 50.53°, 2.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.3°C
Average daily high
13.7°C
Average daily low
7.1°C
Annual rainfall
666mm
Sunshine / day
7.9h
Mean relative humidity
80%
Average peak wind
20.0km/h
Seasonal range
14.3°C
Frost days (< 0 °C)
41 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
134 d/yr
Annual snowfall
13.9 cm
Average feels-like high
11.2 °C
Average feels-like low
4.3 °C
Average peak gust
38.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.46 · 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).
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
Hottest day
40.3 °C
25 July 2019
Coldest day
-21.3 °C
8 January 1985
Wettest day
46 mm
29 August 1996
Windiest day
60.8 km/h
25 January 1990
Strongest gust
126.4 km/h
18 January 2007
Hottest feels-like
39.6 °C
25 July 2019
Coldest feels-like
-26.1 °C
8 January 1985
Snowiest day
12.7 cm
20 February 1957
Sunniest day
16.0 h
19 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 5.7 °C | +0.2 °C | 132 mm | +79 mm |
| Feb | 7.1 °C | +0.5 °C | 38 mm | -8 mm |
| Mar | 12.9 °C | +3.0 °C | 11 mm | -40 mm |
| Apr | 17.4 °C | +4.2 °C | 21 mm | -30 mm |
| May | 18.8 °C | +2.0 °C | 27 mm | -36 mm |
| Jun | 23.4 °C | +3.7 °C | 52 mm | -8 mm |
| Jul | 23.9 °C | +2.2 °C | 64 mm | +5 mm |
| Aug | 24.0 °C | +2.3 °C | 25 mm | -32 mm |
| Sep | 19.6 °C | +0.6 °C | 43 mm | -9 mm |
| Oct | 15.1 °C | +0.4 °C | 68 mm | +11 mm |
| Nov | 10.9 °C | +1.5 °C | 58 mm | -2 mm |
| Dec | 8.5 °C | +2.0 °C | 37 mm | -21 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Béthune?
Béthune has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 666 mm of precipitation per year.
What is the hottest day ever recorded in Béthune?
The hottest day measured in Béthune between 1940 and 2025 was 25 July 2019, reaching 40.3 °C.
What is the coldest day in Béthune?
The coldest day measured in Béthune between 1940 and 2025 was 8 January 1985, at -21.3 °C.
Does it snow in Béthune?
Yes. Béthune gets on average 13.9 cm of snow per year and has around 41 frost days.
Has the climate of Béthune warmed?
Yes: Béthune warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Béthune?
The wettest day measured in Béthune between 1940 and 2025 was 29 August 1996, with 46 mm of rain in 24 hours.
What was the windiest day in Béthune?
The windiest day measured in Béthune between 1940 and 2025 was 25 January 1990, with winds reaching 60.8 km/h.
What is the warmest month in Béthune?
The warmest month in Béthune is July (17.6 °C on average); the coldest is January (3.3 °C).
How much does it rain in Béthune?
Béthune receives on average 666 mm of precipitation per year, spread over about 134 rainy days.
Is it sunny in Béthune?
Béthune gets on average 7.9 hours of sunshine per day, roughly 2,884 hours per year over 1940-2025.
What is the biggest single-day snowfall in Béthune?
The heaviest 24-hour snowfall measured in Béthune between 1940 and 2025 was 20 February 1957, with 12.7 cm.
Are there tropical nights in Béthune?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Béthune.
What was the most extreme apparent temperature in Béthune?
In Béthune, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 25 July 2019, and the lowest was -26.1 °C on 8 January 1985.
Compare Béthune with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Béthune