Bermeo climate — normals and trends
Bermeo (Spain) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 14.5 °C and it receives 1,216 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 (20.0 °C on average) and the coldest is January (10.2 °C). Rainfall peaks in November.
Bermeo averages 0 frost days, 0 hot days (≥ 30 °C) and 164 rainy days per year.
Bermeo has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 29.1 °C (on 25 July 1995) and the coldest -2.0 °C (on 11 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
BermeoBasque Country
- coords
- 43.42°, -2.72°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.5°C
Average daily high
15.7°C
Average daily low
13.5°C
Annual rainfall
1,216mm
Sunshine / day
9.6h
Mean relative humidity
78%
Average peak wind
26.9km/h
Seasonal range
9.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
164 d/yr
Annual snowfall
3.2 cm
Average feels-like high
14.3 °C
Average feels-like low
10.6 °C
Average peak gust
37.7 km/h
Tropical nights (≥ 20 °C)
19 d/yr
Solar radiation
13.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.38 · 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
29.1 °C
25 July 1995
Coldest day
-2.0 °C
11 February 1956
Wettest day
64 mm
17 November 1975
Windiest day
84.5 km/h
29 December 1951
Strongest gust
139.7 km/h
24 January 2009
Hottest feels-like
33.3 °C
19 June 2017
Coldest feels-like
-11.2 °C
10 February 1956
Snowiest day
8.5 cm
11 March 1958
Sunniest day
14.8 h
5 July 2025
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 | 13.7 °C | +2.0 °C | 145 mm | +2 mm |
| Feb | 13.7 °C | +2.1 °C | 69 mm | -51 mm |
| Mar | 13.2 °C | +0.7 °C | 109 mm | +7 mm |
| Apr | 15.4 °C | +2.1 °C | 59 mm | -38 mm |
| May | 16.3 °C | +1.0 °C | 78 mm | +1 mm |
| Jun | 20.5 °C | +2.6 °C | 61 mm | +4 mm |
| Jul | 21.5 °C | +1.4 °C | 58 mm | +11 mm |
| Aug | 22.5 °C | +1.6 °C | 67 mm | +8 mm |
| Sep | 20.6 °C | +0.6 °C | 91 mm | +11 mm |
| Oct | 19.1 °C | +1.1 °C | 36 mm | -80 mm |
| Nov | 16.4 °C | +1.8 °C | 219 mm | +55 mm |
| Dec | 14.1 °C | +1.5 °C | 125 mm | -28 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 Bermeo?
Bermeo has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 1,216 mm of precipitation per year.
What is the hottest day ever recorded in Bermeo?
The hottest day measured in Bermeo between 1940 and 2025 was 25 July 1995, reaching 29.1 °C.
What is the coldest day in Bermeo?
The coldest day measured in Bermeo between 1940 and 2025 was 11 February 1956, at -2.0 °C.
Does it snow in Bermeo?
Yes. Bermeo gets on average 3.2 cm of snow per year and has around 0 frost days.
Has the climate of Bermeo warmed?
Yes: Bermeo warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bermeo?
The wettest day measured in Bermeo between 1940 and 2025 was 17 November 1975, with 64 mm of rain in 24 hours.
What was the windiest day in Bermeo?
The windiest day measured in Bermeo between 1940 and 2025 was 29 December 1951, with winds reaching 84.5 km/h.
What is the warmest month in Bermeo?
The warmest month in Bermeo is August (20.0 °C on average); the coldest is January (10.2 °C).
How much does it rain in Bermeo?
Bermeo receives on average 1,216 mm of precipitation per year, spread over about 164 rainy days.
Is it sunny in Bermeo?
Bermeo gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bermeo?
The heaviest 24-hour snowfall measured in Bermeo between 1940 and 2025 was 11 March 1958, with 8.5 cm.
Are there tropical nights in Bermeo?
Yes: Bermeo has on average 19 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bermeo?
In Bermeo, between 1940 and 2025, the highest apparent temperature reached 33.3 °C on 19 June 2017, and the lowest was -11.2 °C on 10 February 1956.
Compare Bermeo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bermeo