Santa María de Cayón climate — normals and trends

Q: What is the climate of Santa María de Cayón?

Santa María de Cayón has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 1,180 mm of precipitation per year.

Q: What is the hottest day ever recorded in Santa María de Cayón?

The hottest day measured in Santa María de Cayón between 1940 and 2025 was 15 August 2025, reaching 35.8 °C.

Q: What is the coldest day in Santa María de Cayón?

The coldest day measured in Santa María de Cayón between 1940 and 2025 was 4 January 1971, at -11.6 °C.

Q: Does it snow in Santa María de Cayón?

Yes. Santa María de Cayón gets on average 45.3 cm of snow per year and has around 12 frost days.

Q: Has the climate of Santa María de Cayón warmed?

Yes: Santa María de Cayón warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Santa María de Cayón?

The wettest day measured in Santa María de Cayón between 1940 and 2025 was 10 June 1966, with 77 mm of rain in 24 hours.

Q: What was the windiest day in Santa María de Cayón?

The windiest day measured in Santa María de Cayón between 1940 and 2025 was 7 December 2000, with winds reaching 45.9 km/h.

Q: What is the warmest month in Santa María de Cayón?

The warmest month in Santa María de Cayón is August (17.9 °C on average); the coldest is January (5.9 °C).

Q: How much does it rain in Santa María de Cayón?

Santa María de Cayón receives on average 1,180 mm of precipitation per year, spread over about 173 rainy days.

Q: Is it sunny in Santa María de Cayón?

Santa María de Cayón gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Santa María de Cayón (Spain) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.7 °C and it receives 1,180 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 (17.9 °C on average) and the coldest is January (5.9 °C). Rainfall peaks in April.

Santa María de Cayón averages 12 frost days, 2 hot days (≥ 30 °C) and 173 rainy days per year.

Santa María de Cayón has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The number of frost days there went from about 21 to 3 per year over the period.

The hottest day of the period reached 35.8 °C (on 15 August 2025) and the coldest -11.6 °C (on 4 January 1971).

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

Santa María de CayónCantabria

coords: 43.31°, -3.84°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthAugustColdest monthJanuaryWettest monthAprilDriest monthJuly

Mean daily temperature

11.7°C

Average daily high

15.3°C

Average daily low

8.5°C

Annual rainfall

1,180mm

Sunshine / day

8.8h

Mean relative humidity

81%

Average peak wind

14.1km/h

Seasonal range

12.0°C

Frost days (< 0 °C)

12 d/yr

Hot days (≥ 30 °C)

2 d/yr

Rainy days (≥ 1 mm)

173 d/yr

Annual snowfall

45.3 cm

Average feels-like high

14.2 °C

Average feels-like low

6.7 °C

Average peak gust

37.4 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

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.63 · 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

35.8 °C

15 August 2025

Coldest day

-11.6 °C

4 January 1971

Wettest day

77 mm

10 June 1966

Windiest day

45.9 km/h

7 December 2000

Strongest gust

132.1 km/h

29 December 1951

Hottest feels-like

38.9 °C

15 August 2025

Coldest feels-like

-16.2 °C

4 January 1971

Snowiest day

19.4 cm

13 January 1978

Sunniest day

14.9 h

27 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.8 °C15 August 2025	-0.6 °C19 January 2025	13.3 °C	1,118 mm	7	4
2024	35.7 °C11 August 2024	-0.8 °C20 January 2024	12.9 °C	1,277 mm	2	1
2023	35.1 °C23 August 2023	-1.8 °C1 March 2023	13.3 °C	1,344 mm	2	7
2022	33.9 °C17 July 2022	-1.6 °C15 January 2022	13.3 °C	980 mm	10	8
2021	31.0 °C6 September 2021	-4.8 °C7 January 2021	12.1 °C	1,322 mm	1	5
2020	33.7 °C30 July 2020	-0.3 °C31 March 2020	12.9 °C	1,153 mm	3	2
2019	31.3 °C27 June 2019	-1.8 °C4 February 2019	12.4 °C	1,370 mm	5	3
2018	31.3 °C6 August 2018	-4.2 °C28 February 2018	12.5 °C	1,302 mm	1	10
2017	29.9 °C21 August 2017	-1.9 °C7 January 2017	12.6 °C	1,116 mm	0	9
2016	32.5 °C18 July 2016	-2.9 °C17 February 2016	12.5 °C	1,193 mm	5	2
2015	31.3 °C3 July 2015	-3.8 °C10 February 2015	12.7 °C	1,250 mm	3	8
2014	29.4 °C17 July 2014	-0.6 °C30 December 2014	13.0 °C	1,243 mm	0	1
2013	32.5 °C31 July 2013	-1.5 °C28 November 2013	12.0 °C	1,500 mm	1	2
2012	31.8 °C10 August 2012	-3.3 °C11 February 2012	12.0 °C	1,051 mm	4	13
2011	33.6 °C27 June 2011	-1.4 °C4 March 2011	12.9 °C	893 mm	4	3
2010	29.1 °C21 August 2010	-10.1 °C10 January 2010	11.7 °C	1,155 mm	0	21
2009	31.4 °C31 August 2009	-6.3 °C20 December 2009	12.2 °C	1,026 mm	1	12
2008	31.1 °C23 July 2008	-0.3 °C26 December 2008	12.0 °C	1,379 mm	1	3
2007	28.7 °C31 July 2007	-3.0 °C27 January 2007	12.0 °C	1,214 mm	0	11
2006	31.1 °C18 July 2006	-3.2 °C29 January 2006	13.0 °C	992 mm	2	8
2005	31.3 °C14 July 2005	-7.0 °C23 February 2005	11.9 °C	1,154 mm	2	26
2004	28.9 °C31 July 2004	-3.3 °C1 March 2004	12.0 °C	1,219 mm	0	6
2003	32.8 °C4 August 2003	-5.8 °C14 January 2003	13.0 °C	1,194 mm	6	12
2002	29.5 °C16 May 2002	-0.2 °C2 March 2002	12.5 °C	1,159 mm	0	1
2001	31.0 °C1 August 2001	-4.1 °C15 December 2001	12.2 °C	1,078 mm	1	10
2000	30.9 °C10 August 2000	-2.7 °C26 January 2000	12.3 °C	1,144 mm	2	5
1999	28.2 °C10 September 1999	-3.8 °C13 February 1999	12.2 °C	1,259 mm	0	6
1998	33.1 °C19 June 1998	-2.7 °C26 January 1998	12.4 °C	1,110 mm	2	3
1997	27.3 °C2 May 1997	-3.7 °C5 January 1997	13.2 °C	1,082 mm	0	5
1996	29.1 °C30 May 1996	-2.1 °C24 February 1996	12.0 °C	1,359 mm	0	6
1995	30.8 °C19 July 1995	-0.9 °C15 December 1995	12.7 °C	1,014 mm	2	2
1994	31.2 °C23 June 1994	-9.7 °C19 January 1994	12.4 °C	1,017 mm	1	5
1993	30.5 °C20 August 1993	-4.8 °C6 March 1993	11.5 °C	1,154 mm	1	6
1992	29.0 °C7 August 1992	-5.8 °C23 January 1992	11.6 °C	1,416 mm	0	8
1991	30.4 °C28 August 1991	-5.7 °C15 February 1991	11.5 °C	1,094 mm	2	9
1990	31.0 °C21 July 1990	-2.2 °C21 December 1990	12.6 °C	1,084 mm	2	6
1989	33.2 °C21 July 1989	-1.5 °C3 January 1989	13.0 °C	899 mm	2	4
1988	32.5 °C7 September 1988	-4.3 °C3 March 1988	12.1 °C	1,159 mm	3	8
1987	31.2 °C16 September 1987	-5.7 °C21 February 1987	12.1 °C	1,072 mm	1	18
1986	29.4 °C26 June 1986	-5.7 °C11 February 1986	11.3 °C	1,158 mm	0	8
1985	30.0 °C24 July 1985	-10.5 °C12 January 1985	11.6 °C	1,053 mm	1	20
1984	31.9 °C29 July 1984	-3.7 °C6 March 1984	11.1 °C	1,384 mm	2	10
1983	31.8 °C24 September 1983	-8.1 °C15 February 1983	12.1 °C	1,198 mm	2	13
1982	34.0 °C8 July 1982	-0.6 °C25 March 1982	12.0 °C	1,103 mm	1	1
1981	31.9 °C29 July 1981	-2.4 °C12 February 1981	11.7 °C	1,232 mm	1	7
1980	29.1 °C3 June 1980	-7.8 °C16 January 1980	11.0 °C	1,216 mm	0	15
1979	27.4 °C5 September 1979	-6.6 °C17 February 1979	11.1 °C	1,440 mm	0	13
1978	28.1 °C14 August 1978	-3.9 °C12 February 1978	11.6 °C	1,277 mm	0	8
1977	28.3 °C11 September 1977	-2.9 °C31 March 1977	11.3 °C	1,340 mm	0	4
1976	29.1 °C29 June 1976	-2.2 °C25 January 1976	11.1 °C	1,262 mm	0	12
1975	33.7 °C31 July 1975	-7.3 °C24 December 1975	11.1 °C	1,251 mm	3	9
1974	30.9 °C14 August 1974	-4.2 °C5 March 1974	10.9 °C	1,437 mm	2	3
1973	29.4 °C12 August 1973	-3.7 °C18 February 1973	11.0 °C	1,266 mm	0	15
1972	25.8 °C4 July 1972	-3.8 °C1 January 1972	10.6 °C	1,552 mm	0	8
1971	28.5 °C8 July 1971	-11.6 °C4 January 1971	11.2 °C	1,483 mm	0	15
1970	29.4 °C6 July 1970	-5.7 °C27 December 1970	11.4 °C	1,268 mm	0	20
1969	30.6 °C14 July 1969	-5.3 °C15 February 1969	11.3 °C	1,336 mm	1	17
1968	33.6 °C30 June 1968	-2.8 °C11 January 1968	11.7 °C	1,220 mm	4	3
1967	28.2 °C23 June 1967	-3.5 °C16 December 1967	11.3 °C	1,232 mm	0	16
1966	32.7 °C8 September 1966	-2.8 °C17 January 1966	11.1 °C	1,443 mm	3	4
1965	30.6 °C4 August 1965	-7.2 °C8 March 1965	10.5 °C	1,300 mm	1	33
1964	30.8 °C17 May 1964	-6.3 °C8 March 1964	11.0 °C	986 mm	3	25
1963	29.2 °C21 June 1963	-8.6 °C2 February 1963	10.3 °C	1,121 mm	0	39
1962	31.0 °C2 September 1962	-9.3 °C25 December 1962	10.8 °C	1,169 mm	2	14
1961	29.9 °C28 August 1961	-1.6 °C19 December 1961	12.1 °C	1,117 mm	0	6
1960	29.1 °C21 August 1960	-5.6 °C9 February 1960	11.2 °C	1,303 mm	0	14
1959	30.0 °C4 July 1959	-1.1 °C2 February 1959	11.8 °C	1,263 mm	1	5
1958	30.8 °C9 August 1958	-2.2 °C11 March 1958	11.3 °C	1,307 mm	1	9
1957	30.3 °C3 July 1957	-10.5 °C18 January 1957	10.9 °C	1,035 mm	1	15
1956	26.9 °C26 July 1956	-9.0 °C16 February 1956	9.9 °C	1,186 mm	0	32
1955	28.7 °C17 July 1955	-6.7 °C12 March 1955	11.4 °C	984 mm	0	20
1954	26.6 °C3 August 1954	-8.7 °C5 February 1954	10.3 °C	1,329 mm	0	21
1953	30.5 °C11 August 1953	-4.9 °C16 January 1953	10.7 °C	1,066 mm	1	33
1952	28.5 °C30 June 1952	-5.7 °C28 January 1952	11.0 °C	1,200 mm	0	18
1951	31.5 °C28 July 1951	-3.4 °C2 March 1951	10.8 °C	1,172 mm	1	11
1950	31.4 °C29 June 1950	-4.8 °C22 January 1950	11.5 °C	1,114 mm	1	11
1949	28.7 °C11 July 1949	-3.8 °C14 December 1949	11.4 °C	1,000 mm	0	17
1948	29.7 °C27 July 1948	-7.7 °C22 February 1948	11.4 °C	952 mm	0	8
1947	32.8 °C26 July 1947	-8.9 °C27 January 1947	11.8 °C	1,011 mm	7	20
1946	33.2 °C3 August 1946	-5.4 °C25 January 1946	10.8 °C	1,048 mm	4	24
1945	33.1 °C21 July 1945	-8.3 °C3 January 1945	11.4 °C	928 mm	3	30
1944	32.2 °C14 August 1944	-8.6 °C23 February 1944	10.5 °C	1,015 mm	5	35
1943	32.0 °C17 August 1943	-3.4 °C19 February 1943	11.4 °C	1,020 mm	2	10
1942	30.9 °C11 September 1942	-7.2 °C13 January 1942	11.0 °C	1,056 mm	1	32
1941	35.1 °C24 July 1941	-8.3 °C12 January 1941	10.6 °C	1,079 mm	4	28
1940	27.7 °C1 September 1940	-10.0 °C21 January 1940	10.8 °C	1,018 mm	0	32

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

17.3 °C

+2.0 °C

Hot days (≥ 30 °C)

7 d/yr

Frost days (< 0 °C)

4 d/yr

-8

Annual rainfall

1118 mm

-62 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	11.9 °C	+3.0 °C	111 mm	+2 mm
Feb	13.3 °C	+3.4 °C	74 mm	-22 mm
Mar	12.2 °C	0.0 °C	114 mm	+15 mm
Apr	16.8 °C	+3.3 °C	122 mm	+5 mm
May	17.6 °C	+1.3 °C	145 mm	+32 mm
Jun	23.4 °C	+4.0 °C	90 mm	-0 mm
Jul	22.3 °C	+0.8 °C	66 mm	-3 mm
Aug	24.5 °C	+2.6 °C	47 mm	-24 mm
Sep	20.9 °C	+0.5 °C	60 mm	-28 mm
Oct	19.0 °C	+1.9 °C	43 mm	-58 mm
Nov	13.9 °C	+1.5 °C	137 mm	+21 mm
Dec	11.2 °C	+1.5 °C	111 mm	+1 mm

The year's extremes

Hottest day

35.8 °C

15 Aug 2025

Coldest day

-0.6 °C

19 Jan 2025

Wettest day

28.3 mm

24 Mar 2025

Windiest day

38.4 km/h

26 Jan 2025

Strongest gust

114.1 km/h

26 Jan 2025

Hottest feels-like

38.9 °C

15 Aug 2025

Coldest feels-like

-4.9 °C

19 Jan 2025

Snowiest day

2.1 cm

21 Dec 2025

Sunniest day

14.9 h

27 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 Santa María de Cayón?

Santa María de Cayón has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 1,180 mm of precipitation per year.

What is the hottest day ever recorded in Santa María de Cayón?

The hottest day measured in Santa María de Cayón between 1940 and 2025 was 15 August 2025, reaching 35.8 °C.

What is the coldest day in Santa María de Cayón?

The coldest day measured in Santa María de Cayón between 1940 and 2025 was 4 January 1971, at -11.6 °C.

Does it snow in Santa María de Cayón?

Yes. Santa María de Cayón gets on average 45.3 cm of snow per year and has around 12 frost days.

Has the climate of Santa María de Cayón warmed?

Yes: Santa María de Cayón warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Santa María de Cayón?

The wettest day measured in Santa María de Cayón between 1940 and 2025 was 10 June 1966, with 77 mm of rain in 24 hours.

What was the windiest day in Santa María de Cayón?

The windiest day measured in Santa María de Cayón between 1940 and 2025 was 7 December 2000, with winds reaching 45.9 km/h.

What is the warmest month in Santa María de Cayón?

The warmest month in Santa María de Cayón is August (17.9 °C on average); the coldest is January (5.9 °C).

How much does it rain in Santa María de Cayón?

Santa María de Cayón receives on average 1,180 mm of precipitation per year, spread over about 173 rainy days.

Is it sunny in Santa María de Cayón?

Santa María de Cayón gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

What is the biggest single-day snowfall in Santa María de Cayón?

The heaviest 24-hour snowfall measured in Santa María de Cayón between 1940 and 2025 was 13 January 1978, with 19.4 cm.

Are there tropical nights in Santa María de Cayón?

Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Santa María de Cayón.

What was the most extreme apparent temperature in Santa María de Cayón?

In Santa María de Cayón, between 1940 and 2025, the highest apparent temperature reached 38.9 °C on 15 August 2025, and the lowest was -16.2 °C on 4 January 1971.

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