Spain · 1991–2020

Best time to visit
El Grao.

May leads for comfortable weather in El Grao: typically 24.1°C by day, 14.4°C at night, with 37 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high24.1°C

Typical low14.4°C

Rain in May37 mm

Comfort

May

May · October · April

97climate match

Beach

July

July · August · June

95climate match

Outdoors

April

April · March · November

93climate match

The weakest month is January, scoring 56 against May’s 97 — days reach only 15.6°C, 8° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

5615.6° / 6.4°

Feb

6016.4° / 6.9°

Mar

7018.7° / 8.9°

Apr

8221° / 11.1°

May

9724.1° / 14.4°

Jun

8127.9° / 18.3°

Jul

6830.4° / 21.2°

Aug

6630.7° / 21.6°

Sep

7627.8° / 18.6°

Oct

9523.9° / 15°

Nov

7119.1° / 10.2°

Dec

5816.1° / 7.5°

Monthly climate evidence for El Grao — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 15 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	15.6°C	6.4°C	40 mm	3.7	14.2°C	9 h 37	56	Strong coverage
February	16.4°C	6.9°C	27 mm	3.2	13.5°C	10 h 37	60	Strong coverage
March	18.7°C	8.9°C	41 mm	3.8	13.9°C	11 h 49	70	Strong coverage
April	21°C	11.1°C	35 mm	4.4	15.4°C	13 h 12	82	Strong coverage
May	24.1°C	14.4°C	37 mm	4.4	18.1°C	14 h 22	97	Strong coverage
June	27.9°C	18.3°C	20 mm	2.7	21.9°C	14 h 59	81	Strong coverage
July	30.4°C	21.2°C	10 mm	1.7	25.0°C	14 h 45	68	Strong coverage
August	30.7°C	21.6°C	21 mm	2.5	26.2°C	13 h 45	66	Strong coverage
September	27.8°C	18.6°C	61 mm	5	24.7°C	12 h 24	76	Strong coverage
October	23.9°C	15°C	55 mm	4.6	21.9°C	11 h 04	95	Strong coverage
November	19.1°C	10.2°C	54 mm	4.2	18.6°C	9 h 55	71	Strong coverage
December	16.1°C	7.5°C	42 mm	4.1	15.8°C	9 h 21	58	Strong coverage

What has changed

El Grao runs +1.5°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.1

Feb

+0.8

Mar

+0.5

Apr

+1.7

May

+2.5

Jun

+2.4

Jul

+2.0

Aug

+2.0

Sep

+1.1

Oct

+1.5

Nov

+1.4

Dec

+0.8

May daytime highs, 2011–2025. Last recorded: 25.5°C.

Records at CASTELLON, 1973–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.0°C29 Jan 2021	-4.4°C16 Jan 1985	117 mm19 Jan 2017	191 mm2017 · driest 0 mm in 2023	52
February	28.8°C25 Feb 1995	-2.2°C11 Feb 1983	67 mm26 Feb 2006	94 mm1991 · driest 0 mm in 2019	52
March	30.8°C11 Mar 2023	0.4°C11 Mar 1984	134 mm22 Mar 2015	207 mm2022 · driest 0 mm in 2023	51
April	30.6°C29 Apr 1997	2.8°C13 Apr 1986	69 mm18 Apr 1982	147 mm1981 · driest 1 mm in 1987	52
May	35.0°C31 May 2010	5.2°C9 May 1991	98 mm25 May 2023	152 mm2003 · driest 0 mm in 1974	54
June	38.8°C29 Jun 2019	10.2°C7 Jun 1984	39 mm27 Jun 2022	78 mm1992 · driest 0 mm in 2019	53
July	40.6°C23 Jul 2009	12.0°C10 Jul 1980	58 mm12 Jul 2025	89 mm2025 · driest 0 mm in 1978	51
August	39.4°C12 Aug 2008	12.2°C23 Aug 1977	83 mm22 Aug 1983	192 mm1983 · driest 0 mm in 1974	52
September	36.0°C1 Sep 1988	6.0°C23 Sep 1973	141 mm4 Sep 1989	330 mm2009 · driest 1 mm in 2013	51
October	33.4°C21 Oct 2014	5.4°C30 Oct 2008	128 mm18 Oct 2018	298 mm2000 · driest 2 mm in 2014	51
November	29.0°C2 Nov 1995	-1.8°C30 Nov 1980	119 mm10 Nov 2005	249 mm2005 · driest 0 mm in 1981	52
December	25.4°C13 Dec 1981	-0.6°C23 Dec 1979	106 mm4 Dec 2019	211 mm1989 · driest 0 mm in 2015	52

Typical days per month at CASTELLON, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	<1	0	1
February	<1	0	<1
March	1	0	1
April	3	<1	1
May	12	<1	1
June	26	7	<1
July	31	20	<1
August	31	22	<1
September	27	5	2
October	11	<1	1
November	<1	0	2
December	0	0	1

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 90); on 2011–2025 it is May (98). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in CASTELLON’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	10%	12%	3%	10%	13.8–17.4°C
February	16%	11%	3%	9%	14.5–18.8°C
March	30%	14%	3%	10%	17.3–20.0°C
April	55%	16%	4%	16%	18.7–22.1°C
May	81%	15%	4%	12%	21.4–25.5°C
June	90%	10%	2%	6%	25.9–29.8°C
July	94%	6%	1%	3%	28.6–31.5°C
August	91%	10%	2%	4%	28.6–31.8°C
September	84%	16%	6%	13%	26.7–28.7°C
October	80%	16%	5%	15%	22.4–25.6°C
November	35%	15%	5%	15%	17.4–20.4°C
December	10%	13%	4%	12%	14.8–17.5°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1976Each stripe is one year’s mean temperature against the 50-year average. Warmest: 2022. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2518444
NOAA station: SPE00119999 · CASTELLON
Station distance: 5.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 39.97°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 15 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from CASTELLON is what differs

Castelló de la Plana→Vila-real→Burriana→Almassora→Onda→Benicàssim→

Or put two places side by side: El Grao vs Castelló de la Plana

Best time to visitEl Grao.

May

July

April

The whole year,without the guesswork.

El Grao runs +1.5°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
El Grao.

The whole year,
without the guesswork.

El Grao runs +1.5°C
on the 1961–1990 baseline.

Nearby, measured,
and named.