Beasain climate — normals and trends
Beasain (Spain) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.0 °C and it receives 1,145 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 August (17.8 °C on average) and the coldest is January (4.6 °C). Rainfall peaks in April.
Beasain averages 30 frost days, 5 hot days (≥ 30 °C) and 165 rainy days per year.
Beasain has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 45 to 15 per year over the period.
The hottest day of the period reached 37.6 °C (on 18 June 2022) and the coldest -18.0 °C (on 16 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.
Climate normals · ERA5
BeasainBasque Country
- coords
- 43.05°, -2.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.0°C
Average daily high
15.3°C
Average daily low
7.4°C
Annual rainfall
1,145mm
Sunshine / day
9.0h
Mean relative humidity
82%
Average peak wind
13.4km/h
Seasonal range
13.2°C
Frost days (< 0 °C)
30 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
165 d/yr
Annual snowfall
44.0 cm
Average feels-like high
14.1 °C
Average feels-like low
5.5 °C
Average peak gust
40.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.62 · 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
37.6 °C
18 June 2022
Coldest day
-18.0 °C
16 February 1956
Wettest day
67 mm
13 September 1999
Windiest day
40.9 km/h
15 February 1941
Strongest gust
134.6 km/h
29 December 1951
Hottest feels-like
39.4 °C
23 August 2023
Coldest feels-like
-22.4 °C
16 February 1956
Snowiest day
20.4 cm
12 January 1978
Sunniest day
14.8 h
29 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 | 10.7 °C | +2.8 °C | 124 mm | +18 mm |
| Feb | 13.0 °C | +3.8 °C | 65 mm | -31 mm |
| Mar | 11.7 °C | -0.4 °C | 125 mm | +27 mm |
| Apr | 16.9 °C | +3.1 °C | 129 mm | +12 mm |
| May | 18.5 °C | +1.6 °C | 128 mm | +17 mm |
| Jun | 25.3 °C | +5.0 °C | 76 mm | -10 mm |
| Jul | 23.4 °C | +0.8 °C | 70 mm | +10 mm |
| Aug | 26.5 °C | +3.5 °C | 59 mm | -8 mm |
| Sep | 21.8 °C | +0.9 °C | 81 mm | -2 mm |
| Oct | 19.5 °C | +2.6 °C | 41 mm | -58 mm |
| Nov | 13.2 °C | +1.7 °C | 142 mm | +29 mm |
| Dec | 10.7 °C | +2.2 °C | 68 mm | -41 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 Beasain?
Beasain has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 1,145 mm of precipitation per year.
What is the hottest day ever recorded in Beasain?
The hottest day measured in Beasain between 1940 and 2025 was 18 June 2022, reaching 37.6 °C.
What is the coldest day in Beasain?
The coldest day measured in Beasain between 1940 and 2025 was 16 February 1956, at -18.0 °C.
Does it snow in Beasain?
Yes. Beasain gets on average 44.0 cm of snow per year and has around 30 frost days.
Has the climate of Beasain warmed?
Yes: Beasain warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Beasain?
The wettest day measured in Beasain between 1940 and 2025 was 13 September 1999, with 67 mm of rain in 24 hours.
What was the windiest day in Beasain?
The windiest day measured in Beasain between 1940 and 2025 was 15 February 1941, with winds reaching 40.9 km/h.
What is the warmest month in Beasain?
The warmest month in Beasain is August (17.8 °C on average); the coldest is January (4.6 °C).
How much does it rain in Beasain?
Beasain receives on average 1,145 mm of precipitation per year, spread over about 165 rainy days.
Is it sunny in Beasain?
Beasain gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Beasain?
The heaviest 24-hour snowfall measured in Beasain between 1940 and 2025 was 12 January 1978, with 20.4 cm.
Are there tropical nights in Beasain?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Beasain.
What was the most extreme apparent temperature in Beasain?
In Beasain, between 1940 and 2025, the highest apparent temperature reached 39.4 °C on 23 August 2023, and the lowest was -22.4 °C on 16 February 1956.
Compare Beasain with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Beasain