Castelló de la Plana climate

Name: Castelló de la Plana
Address: ES

Castelló de la Plana is warmest in August, with average highs of 28 °C, and coldest in January, when nights average 6.2 °C. October is the wettest month (50 mm) and July the driest (8.1 mm). Figures are 1991–2020 climate normals.

Across a full year Castelló de la Plana averages 386 mm of rain, 100 days above 25 °C and 0 days below freezing.

Spain · 30 m elevation · population 171,857 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month August 28 °C
Coldest month January 6.2 °C
Driest month July 8 mm
Wettest month October 50 mm
Least cloud July 23 % cloud
Hottest on record July 37 °C
Coldest on record January -1.0 °C
Warmest sea August 26 °C

What to expectCastelló de la Plana through the year

Castelló de la Plana has a clear annual cycle: average daily highs run from 14 °C in January to 28 °C in August, a swing of 15 °C in mean temperature across the year.

Counted across a normal year, 100 days a year reach 25 °C, 11 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 37 °C, in July.

Rain is strongly seasonal. October averages 50 mm against 8 mm in July — 6.1 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Castelló de la Plana is warmest in August at 26 °C and coldest in February at 14 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	14.1 °C	37 mm	44 %
February	14.5 °C	28 mm	41 %
March	16.7 °C	34 mm	43 %
April	18.6 °C	36 mm	45 %
May	21.6 °C	31 mm	46 %
June	25.4 °C	18 mm	34 %
July	28.0 °C	8 mm	23 %
August	28.4 °C	19 mm	32 %
September	25.5 °C	47 mm	42 %
October	22.0 °C	50 mm	46 %
November	17.6 °C	43 mm	45 %
December	14.7 °C	35 mm	46 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	14.1 °C	6.2 °C	10.0 °C	25.7 °C	-1.0 °C	0	0
February	14.5 °C	6.4 °C	10.4 °C	23.8 °C	0.0 °C	0	0
March	16.7 °C	8.4 °C	12.5 °C	27.2 °C	1.2 °C	0	0
April	18.6 °C	10.8 °C	14.8 °C	27.2 °C	5.0 °C	0	0
May	21.6 °C	14.3 °C	18.2 °C	34.0 °C	6.9 °C	3	0
June	25.4 °C	18.3 °C	22.1 °C	34.7 °C	11.4 °C	16	1
July	28.0 °C	21.3 °C	24.8 °C	37.0 °C	14.3 °C	28	4
August	28.4 °C	21.8 °C	25.2 °C	36.9 °C	15.3 °C	29	5
September	25.5 °C	18.8 °C	22.2 °C	32.4 °C	12.0 °C	18	1
October	22.0 °C	15.0 °C	18.5 °C	32.8 °C	6.5 °C	4	0
November	17.6 °C	10.4 °C	13.9 °C	28.0 °C	2.7 °C	0	0
December	14.7 °C	7.4 °C	10.9 °C	22.8 °C	0.5 °C	0	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	37 mm	5	9.7 h/day	44 %	72 %	15 km/h	14.2 °C
February	28 mm	4	11 h/day	41 %	70 %	16 km/h	13.5 °C
March	34 mm	5	12 h/day	43 %	69 %	18 km/h	14.0 °C
April	36 mm	6	13 h/day	45 %	69 %	19 km/h	15.5 °C
May	31 mm	5	14 h/day	46 %	71 %	17 km/h	18.2 °C
June	18 mm	3	15 h/day	34 %	70 %	17 km/h	21.9 °C
July	8 mm	1	15 h/day	23 %	71 %	17 km/h	25.1 °C
August	19 mm	3	14 h/day	32 %	72 %	16 km/h	26.3 °C
September	47 mm	6	12 h/day	42 %	72 %	16 km/h	24.8 °C
October	50 mm	6	11 h/day	46 %	73 %	16 km/h	21.9 °C
November	43 mm	5	10.0 h/day	45 %	71 %	16 km/h	18.6 °C
December	35 mm	5	9.4 h/day	46 %	73 %	15 km/h	15.8 °C

Where Castelló de la Plana ranks

Ranking	Position	Value
Best beach destinations in Europe in July	2nd of 50	100/100
Best beach destinations in the world in July	2nd of 50	100/100
Places with the best weather in Europe in October	3rd of 50	95/100
Best beach destinations in Europe in August	4th of 50	98/100
Places with the best weather in Europe in May	6th of 50	96/100
Warmest sea temperatures in Europe in August	7th of 50	26 °C

Planning a trip? See the best time to visit Castelló de la Plana.

QuestionsCommon questions about Castelló de la Plana’s climate

When is the best time to visit Castelló de la Plana?

That depends on what you want, so the honest answer is a comparison rather than a single month. May, June, October sit closest to 20 °C on average, August is the warmest month and July the driest. The month-by-month table above has the full picture.

How hot does Castelló de la Plana get?

In August, the warmest month, daily highs average 28 °C. About 11 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °C.

How cold does it get in winter?

Nights average 6.2 °C in January, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Castelló de la Plana?

October, averaging 50 mm over 6 days with rain. The driest month is July with 8 mm. The year as a whole averages 386 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Castelló de la Plana rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 39.986°, -0.049° , 30 m above sea level (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.