Castro Urdiales climate — normals and trends

Q: What is the climate of Castro Urdiales?

Castro Urdiales has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 1,085 mm of precipitation per year.

Q: What is the hottest day ever recorded in Castro Urdiales?

The hottest day measured in Castro Urdiales between 1940 and 2025 was 11 August 2024, reaching 32.6 °C.

Q: What is the coldest day in Castro Urdiales?

The coldest day measured in Castro Urdiales between 1940 and 2025 was 25 December 1962, at -2.6 °C.

Q: Does it snow in Castro Urdiales?

Yes. Castro Urdiales gets on average 3.0 cm of snow per year and has around 0 frost days.

Q: Has the climate of Castro Urdiales warmed?

Yes: Castro Urdiales warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Castro Urdiales?

The wettest day measured in Castro Urdiales between 1940 and 2025 was 10 June 1966, with 66 mm of rain in 24 hours.

Q: What was the windiest day in Castro Urdiales?

The windiest day measured in Castro Urdiales between 1940 and 2025 was 29 December 1951, with winds reaching 72.7 km/h.

Q: What is the warmest month in Castro Urdiales?

The warmest month in Castro Urdiales is August (20.1 °C on average); the coldest is January (9.8 °C).

Q: How much does it rain in Castro Urdiales?

Castro Urdiales receives on average 1,085 mm of precipitation per year, spread over about 161 rainy days.

Q: Is it sunny in Castro Urdiales?

Castro Urdiales gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Castro Urdiales (Spain) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 14.5 °C and it receives 1,085 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 (20.1 °C on average) and the coldest is January (9.8 °C). Rainfall peaks in November.

Castro Urdiales averages 0 frost days, 0 hot days (≥ 30 °C) and 161 rainy days per year.

Castro Urdiales has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 32.6 °C (on 11 August 2024) and the coldest -2.6 °C (on 25 December 1962).

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

Castro UrdialesCantabria

coords: 43.38°, -3.22°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthAugustColdest monthJanuaryWettest monthNovemberDriest monthJuly

Mean daily temperature

14.5°C

Average daily high

16.4°C

Average daily low

12.7°C

Annual rainfall

1,085mm

Sunshine / day

9.6h

Mean relative humidity

77%

Average peak wind

22.0km/h

Seasonal range

10.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

0 d/yr

Rainy days (≥ 1 mm)

161 d/yr

Annual snowfall

3.0 cm

Average feels-like high

15.2 °C

Average feels-like low

10.5 °C

Average peak gust

36.5 km/h

Tropical nights (≥ 20 °C)

7 d/yr

Solar radiation

13.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.50 · p = < 0.001

19402025

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

32.6 °C

11 August 2024

Coldest day

-2.6 °C

25 December 1962

Wettest day

66 mm

10 June 1966

Windiest day

72.7 km/h

29 December 1951

Strongest gust

139.3 km/h

24 January 2009

Hottest feels-like

36.3 °C

18 July 2006

Coldest feels-like

-9.5 °C

10 February 1956

Snowiest day

7.0 cm

1 February 1954

Sunniest day

14.9 h

27 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	31.5 °C15 August 2025	5.3 °C16 March 2025	15.9 °C	1,015 mm	2	0
2024	32.6 °C11 August 2024	3.9 °C20 January 2024	15.5 °C	1,217 mm	1	0
2023	30.5 °C23 August 2023	4.8 °C1 March 2023	16.0 °C	1,223 mm	1	0
2022	32.0 °C18 July 2022	4.7 °C5 April 2022	15.9 °C	869 mm	2	0
2021	28.2 °C13 September 2021	3.8 °C8 January 2021	14.8 °C	1,272 mm	0	0
2020	31.7 °C19 August 2020	4.9 °C31 March 2020	15.6 °C	1,020 mm	1	0
2019	29.7 °C23 July 2019	4.9 °C4 January 2019	15.0 °C	1,358 mm	0	0
2018	27.9 °C6 August 2018	1.6 °C28 February 2018	15.2 °C	1,150 mm	0	0
2017	29.5 °C15 October 2017	3.3 °C18 January 2017	15.0 °C	1,097 mm	0	0
2016	29.7 °C18 July 2016	4.5 °C17 February 2016	15.2 °C	1,097 mm	0	0
2015	29.8 °C27 August 2015	3.0 °C4 February 2015	15.2 °C	1,066 mm	0	0
2014	28.6 °C17 July 2014	4.8 °C30 December 2014	15.5 °C	1,083 mm	0	0
2013	27.8 °C31 July 2013	4.1 °C23 February 2013	14.7 °C	1,470 mm	0	0
2012	29.5 °C27 June 2012	1.9 °C11 February 2012	14.7 °C	988 mm	0	0
2011	29.5 °C26 June 2011	4.0 °C22 January 2011	15.5 °C	764 mm	0	0
2010	25.4 °C25 August 2010	2.0 °C10 January 2010	14.3 °C	1,101 mm	0	0
2009	31.2 °C31 August 2009	2.1 °C9 January 2009	14.7 °C	1,024 mm	1	0
2008	26.5 °C8 September 2008	4.6 °C23 March 2008	14.6 °C	1,301 mm	0	0
2007	27.9 °C15 July 2007	3.8 °C26 January 2007	14.5 °C	1,066 mm	0	0
2006	30.9 °C18 July 2006	2.0 °C28 January 2006	15.5 °C	828 mm	1	0
2005	30.7 °C27 July 2005	1.3 °C1 March 2005	14.7 °C	1,033 mm	1	0
2004	27.7 °C22 June 2004	2.2 °C1 March 2004	14.7 °C	1,046 mm	0	0
2003	30.8 °C4 August 2003	1.7 °C18 February 2003	15.5 °C	1,051 mm	1	0
2002	25.9 °C18 September 2002	6.1 °C17 January 2002	14.9 °C	933 mm	0	0
2001	29.6 °C1 August 2001	1.2 °C15 December 2001	14.9 °C	956 mm	0	0
2000	30.6 °C18 June 2000	3.1 °C26 January 2000	14.8 °C	1,026 mm	1	0
1999	26.4 °C7 August 1999	4.1 °C1 February 1999	14.9 °C	1,128 mm	0	0
1998	29.2 °C20 June 1998	2.7 °C26 January 1998	14.9 °C	1,046 mm	0	0
1997	27.5 °C6 June 1997	3.1 °C1 January 1997	15.5 °C	918 mm	0	0
1996	27.1 °C22 July 1996	2.1 °C20 February 1996	14.5 °C	1,270 mm	0	0
1995	30.9 °C25 July 1995	4.0 °C15 December 1995	15.2 °C	862 mm	1	0
1994	26.3 °C23 June 1994	2.2 °C19 January 1994	14.8 °C	973 mm	0	0
1993	28.2 °C21 August 1993	2.3 °C25 February 1993	14.2 °C	964 mm	0	0
1992	29.4 °C19 August 1992	2.5 °C22 January 1992	14.2 °C	1,339 mm	0	0
1991	29.4 °C21 August 1991	2.4 °C15 February 1991	14.1 °C	1,014 mm	0	0
1990	27.7 °C21 July 1990	3.4 °C21 December 1990	15.2 °C	960 mm	0	0
1989	30.0 °C21 July 1989	4.3 °C3 January 1989	15.5 °C	735 mm	1	0
1988	29.4 °C27 August 1988	3.8 °C23 November 1988	14.7 °C	988 mm	0	0
1987	29.8 °C16 September 1987	1.5 °C13 January 1987	14.5 °C	1,000 mm	0	0
1986	27.1 °C13 September 1986	1.5 °C11 February 1986	13.9 °C	1,070 mm	0	0
1985	28.9 °C13 July 1985	-2.5 °C16 January 1985	14.2 °C	1,008 mm	0	2
1984	26.4 °C29 July 1984	3.9 °C15 February 1984	13.7 °C	1,298 mm	0	0
1983	28.1 °C23 September 1983	-1.8 °C13 February 1983	14.5 °C	993 mm	0	1
1982	27.8 °C8 July 1982	5.4 °C30 December 1982	14.6 °C	1,125 mm	0	0
1981	26.4 °C20 September 1981	2.8 °C11 January 1981	14.3 °C	1,106 mm	0	0
1980	27.8 °C28 July 1980	2.2 °C13 January 1980	13.7 °C	1,217 mm	0	0
1979	25.0 °C25 July 1979	2.2 °C16 February 1979	14.0 °C	1,331 mm	0	0
1978	25.6 °C3 June 1978	3.6 °C11 February 1978	14.1 °C	1,263 mm	0	0
1977	25.0 °C11 September 1977	4.4 °C10 January 1977	14.0 °C	1,226 mm	0	0
1976	27.7 °C29 June 1976	2.0 °C26 January 1976	13.9 °C	1,142 mm	0	0
1975	29.2 °C31 July 1975	3.3 °C23 December 1975	13.9 °C	1,253 mm	0	0
1974	27.0 °C11 September 1974	4.3 °C5 March 1974	13.7 °C	1,302 mm	0	0
1973	28.1 °C4 September 1973	2.9 °C3 December 1973	13.8 °C	1,265 mm	0	0
1972	23.5 °C4 July 1972	3.8 °C4 January 1972	13.4 °C	1,321 mm	0	0
1971	26.7 °C8 July 1971	0.7 °C3 January 1971	13.8 °C	1,309 mm	0	0
1970	27.8 °C7 September 1970	1.5 °C27 December 1970	14.0 °C	1,148 mm	0	0
1969	26.3 °C13 May 1969	2.1 °C15 February 1969	14.0 °C	1,234 mm	0	0
1968	30.4 °C30 June 1968	2.4 °C11 January 1968	14.3 °C	1,151 mm	1	0
1967	27.3 °C25 September 1967	1.9 °C10 January 1967	14.2 °C	1,099 mm	0	0
1966	29.2 °C7 September 1966	2.6 °C15 January 1966	14.2 °C	1,373 mm	0	0
1965	25.1 °C4 August 1965	2.5 °C18 February 1965	13.6 °C	1,297 mm	0	0
1964	30.0 °C26 August 1964	1.3 °C8 March 1964	14.0 °C	1,003 mm	1	0
1963	25.2 °C21 June 1963	0.2 °C2 February 1963	13.4 °C	968 mm	0	0
1962	28.7 °C2 September 1962	-2.6 °C25 December 1962	13.8 °C	1,130 mm	0	3
1961	30.0 °C16 September 1961	4.6 °C19 December 1961	14.9 °C	1,020 mm	1	0
1960	26.8 °C21 August 1960	0.6 °C11 January 1960	14.2 °C	1,297 mm	0	0
1959	27.0 °C4 July 1959	3.5 °C2 February 1959	14.7 °C	1,127 mm	0	0
1958	26.6 °C2 September 1958	2.2 °C11 March 1958	14.1 °C	1,307 mm	0	0
1957	29.5 °C3 July 1957	-0.7 °C18 January 1957	14.0 °C	856 mm	0	1
1956	26.7 °C8 September 1956	-1.8 °C11 February 1956	13.0 °C	1,056 mm	0	4
1955	27.2 °C24 July 1955	1.3 °C10 March 1955	14.5 °C	932 mm	0	0
1954	26.5 °C31 August 1954	-1.2 °C1 February 1954	13.5 °C	1,339 mm	0	3
1953	28.4 °C11 August 1953	2.6 °C15 February 1953	13.9 °C	968 mm	0	0
1952	26.2 °C11 August 1952	2.1 °C23 January 1952	14.1 °C	1,152 mm	0	0
1951	25.9 °C28 July 1951	4.5 °C27 January 1951	13.8 °C	1,036 mm	0	0
1950	26.0 °C20 August 1950	3.1 °C20 January 1950	14.4 °C	1,135 mm	0	0
1949	29.5 °C4 September 1949	3.0 °C11 January 1949	14.7 °C	990 mm	0	0
1948	29.5 °C7 August 1948	-0.5 °C22 February 1948	14.4 °C	885 mm	0	1
1947	32.0 °C1 August 1947	0.0 °C27 January 1947	14.6 °C	932 mm	2	0
1946	26.6 °C3 August 1946	1.8 °C17 January 1946	14.0 °C	977 mm	0	0
1945	29.6 °C17 September 1945	-0.2 °C13 January 1945	14.4 °C	853 mm	0	1
1944	27.5 °C12 August 1944	-1.4 °C23 February 1944	13.7 °C	955 mm	0	2
1943	29.6 °C17 August 1943	4.6 °C27 December 1943	14.5 °C	968 mm	0	0
1942	30.5 °C11 September 1942	-0.2 °C13 January 1942	14.0 °C	904 mm	1	1
1941	30.6 °C22 July 1941	-0.9 °C10 January 1941	13.5 °C	945 mm	1	2
1940	27.2 °C4 September 1940	-0.4 °C19 January 1940	13.7 °C	802 mm	0	2

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?

Year

Across the whole year

Average daily high

18.1 °C

+1.7 °C

Hot days (≥ 30 °C)

2 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1015 mm

-70 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	14.3 °C	+2.5 °C	120 mm	-1 mm
Feb	14.6 °C	+2.5 °C	69 mm	-32 mm
Mar	13.8 °C	+0.5 °C	101 mm	+9 mm
Apr	16.6 °C	+2.4 °C	74 mm	-19 mm
May	17.5 °C	+1.0 °C	87 mm	+10 mm
Jun	22.1 °C	+2.9 °C	53 mm	-4 mm
Jul	22.7 °C	+1.4 °C	47 mm	+2 mm
Aug	23.8 °C	+1.8 °C	54 mm	+0 mm
Sep	21.3 °C	+0.5 °C	78 mm	+4 mm
Oct	20.0 °C	+1.5 °C	32 mm	-73 mm
Nov	16.8 °C	+2.0 °C	175 mm	+37 mm
Dec	14.1 °C	+1.5 °C	125 mm	-4 mm

The year's extremes

Hottest day

31.5 °C

15 Aug 2025

Coldest day

5.3 °C

16 Mar 2025

Wettest day

31.0 mm

19 Dec 2025

Windiest day

58.0 km/h

23 Oct 2025

Strongest gust

94.7 km/h

23 Oct 2025

Hottest feels-like

33.6 °C

15 Aug 2025

Coldest feels-like

1.7 °C

13 Jan 2025

Sunniest day

14.9 h

20 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Castro Urdiales?

Castro Urdiales has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 1,085 mm of precipitation per year.

What is the hottest day ever recorded in Castro Urdiales?

The hottest day measured in Castro Urdiales between 1940 and 2025 was 11 August 2024, reaching 32.6 °C.

What is the coldest day in Castro Urdiales?

The coldest day measured in Castro Urdiales between 1940 and 2025 was 25 December 1962, at -2.6 °C.

Does it snow in Castro Urdiales?

Yes. Castro Urdiales gets on average 3.0 cm of snow per year and has around 0 frost days.

Has the climate of Castro Urdiales warmed?

Yes: Castro Urdiales warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Castro Urdiales?

The wettest day measured in Castro Urdiales between 1940 and 2025 was 10 June 1966, with 66 mm of rain in 24 hours.

What was the windiest day in Castro Urdiales?

The windiest day measured in Castro Urdiales between 1940 and 2025 was 29 December 1951, with winds reaching 72.7 km/h.

What is the warmest month in Castro Urdiales?

The warmest month in Castro Urdiales is August (20.1 °C on average); the coldest is January (9.8 °C).

How much does it rain in Castro Urdiales?

Castro Urdiales receives on average 1,085 mm of precipitation per year, spread over about 161 rainy days.

Is it sunny in Castro Urdiales?

Castro Urdiales 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 Castro Urdiales?

The heaviest 24-hour snowfall measured in Castro Urdiales between 1940 and 2025 was 1 February 1954, with 7.0 cm.

Are there tropical nights in Castro Urdiales?

Yes: Castro Urdiales has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Castro Urdiales?

In Castro Urdiales, between 1940 and 2025, the highest apparent temperature reached 36.3 °C on 18 July 2006, and the lowest was -9.5 °C on 10 February 1956.

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