El Grao weather in December

In December, El Grao sees average daytime highs of 15°C and overnight lows near 8°C, with 35 mm of rain across 5 wet days and about 9.2 hours of daylight. It is the 10th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 15°C through the month. The sky is clear or mostly clear about 47% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of December to 9 h 12 min by month's end. Set against the rest of the year, December is El Grao's 9th-clearest and 6th-windiest month. For the whole year in context, see El Grao's year-round climate.

Daytime high: 15°; 10th warmest
Overnight low: 8°; 3rd coldest
Rainfall: 35 mm; 5 wet days
Daylight: 9 h 12 min; 8:21 AM – 5:31 PM
Cloud cover: 46%; 9th clearest
Wind: 10 km/h; 6th windiest
Solar energy: 2.08 kWh/m²
Travel score: 5.4; out of 10

← November El Grao year-round climate January →Best places to visit in December

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 15°C through the month.

A typical December day in El Grao reaches about 15°C in the afternoon and slips back to 8°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 18°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15
Avg low (°C)	9	9	9	9	9	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7	7

	Avg high (°C)	Avg low (°C)
1	16	9
2	16	9
3	16	9
4	16	9
5	16	9
6	16	8
7	16	8
8	16	8
9	16	8
10	16	8
11	16	8
12	15	8
13	15	8
14	15	8
15	15	8
16	15	8
17	15	8
18	15	8
19	15	8
20	15	8
21	15	7
22	15	7
23	15	7
24	15	7
25	15	7
26	15	7
27	15	7
28	15	7
29	15	7
30	15	7
31	15	7

El Grao weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	15° / 7°	36	4.6	9.5	5.1
Feb	15° / 7°	28	4.1	10.4	5.5
Mar	17° / 9°	34	4.9	11.7	6.4
Apr	19° / 11°	37	5.9	13	6.9
May	22° / 15°	32	4.9	14.2	7.6
Jun	26° / 19°	19	3.1	14.8	8.3
Jul	28° / 21°	9	1.5	14.5	7.8
Aug	29° / 22°	20	3.7	13.6	6.9
Sep	26° / 19°	45	6.3	12.3	7.5
Oct	23° / 15°	50	6.3	10.9	7.5
Nov	18° / 11°	41	5.3	9.8	6.7
Dec	15° / 8°	35	5	9.2	5.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 39%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	61	60	61	60	60	60	60	60	59	60	60	60	59	59	59	60	60	60	60	60	62	61	61	62	62	62	63	63	63	63	63
Cloudier (%)	39	40	39	40	40	40	40	40	41	40	40	40	41	41	41	40	40	40	40	40	38	39	39	38	38	38	37	37	37	37	37

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	61	39
4	60	40
5	60	40
6	60	40
7	60	40
8	60	40
9	59	41
10	60	40
11	60	40
12	60	40
13	59	41
14	59	41
15	59	41
16	60	40
17	60	40
18	60	40
19	60	40
20	60	40
21	62	38
22	61	39
23	61	39
24	62	38
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	63	37

Chance of precipitation in December

Any precipitation

El Grao gets around 35 mm of rain over 5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 17% and peaks near 20% on the wettest days. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	20	20	20	19	19	19	19	19	18	18	18	18	17	17	17	17	17	16	16	16	15	15	15	14	14	14	14	13	13	13	13

	Rain chance (%)
1	20
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	18
10	18
11	18
12	18
13	17
14	17
15	17
16	17
17	17
18	16
19	16
20	16
21	15
22	15
23	15
24	14
25	14
26	14
27	14
28	13
29	13
30	13
31	13

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	97	98	98	99	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	3	2	2	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	10	10	10	10	10	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	9	calm
14	9	calm
15	9	calm
16	9	calm
17	9	calm
18	9	calm
19	9	calm
20	9	calm
21	9	calm
22	9	calm
23	9	calm
24	9	calm
25	9	calm
26	9	calm
27	9	calm
28	9	calm
29	9	calm
30	9	calm
31	9	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 24 min at the start of December to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 8:09 AM to 8:27 AM, and sunset from 5:31 PM to 5:39 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.4	9.4	9.3	9.3	9.3	9.3	9.3	9.3	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2	9.2
Sunrise (AM)	8:09	8:10	8:10	8:11	8:12	8:13	8:14	8:15	8:16	8:17	8:17	8:18	8:19	8:19	8:20	8:21	8:21	8:22	8:23	8:23	8:24	8:24	8:25	8:25	8:25	8:26	8:26	8:26	8:27	8:27	8:27
Sunset (PM)	5:31	5:31	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:30	5:31	5:31	5:31	5:31	5:31	5:32	5:32	5:32	5:33	5:33	5:34	5:34	5:35	5:35	5:36	5:36	5:37	5:38	5:38	5:39

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.4	8:09	5:31
2	9.4	8:10	5:31
3	9.3	8:10	5:30
4	9.3	8:11	5:30
5	9.3	8:12	5:30
6	9.3	8:13	5:30
7	9.3	8:14	5:30
8	9.3	8:15	5:30
9	9.2	8:16	5:30
10	9.2	8:17	5:30
11	9.2	8:17	5:30
12	9.2	8:18	5:31
13	9.2	8:19	5:31
14	9.2	8:19	5:31
15	9.2	8:20	5:31
16	9.2	8:21	5:31
17	9.2	8:21	5:32
18	9.2	8:22	5:32
19	9.2	8:23	5:32
20	9.2	8:23	5:33
21	9.2	8:24	5:33
22	9.2	8:24	5:34
23	9.2	8:25	5:34
24	9.2	8:25	5:35
25	9.2	8:25	5:35
26	9.2	8:26	5:36
27	9.2	8:26	5:36
28	9.2	8:26	5:37
29	9.2	8:27	5:38
30	9.2	8:27	5:38
31	9.2	8:27	5:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.08 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 7.16 kWh/m² in June across the year — December's 2.08 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.2	2.2	2.2	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.2
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.2	Moderate
2	2.2	Moderate
3	2.2	Moderate
4	2.1	Moderate
5	2.1	Moderate
6	2.1	Moderate
7	2.1	Moderate
8	2.1	Moderate
9	2.1	Moderate
10	2.1	Moderate
11	2.1	Moderate
12	2.1	Moderate
13	2.1	Moderate
14	2.1	Moderate
15	2.1	Moderate
16	2.1	Moderate
17	2.1	Moderate
18	2.1	Moderate
19	2.1	Moderate
20	2.1	Moderate
21	2.1	Moderate
22	2.1	Moderate
23	2.1	Moderate
24	2.1	Moderate
25	2.1	Moderate
26	2.1	Moderate
27	2.1	Moderate
28	2.1	Moderate
29	2.1	Moderate
30	2.1	Moderate
31	2.2	Moderate

Planning a trip in December

Is December a good time to visit El Grao?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.4

Sightseeing

11th-best month of the year

0.3

Beach & pool

10th-best month of the year

December is a reasonable time to visit El Grao for sightseeing.

What to pack for El Grao in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, El Grao sees daytime highs around 15°C and nights near 8°C. Worth packing: a warm layer. About 5 days see rain.

a warm layer

Sea temperature near El Grao in December

The nearest coast averages about 16°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 1 to Nov 2 — about 5.1 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	14	14	14	15	18	22	25	26	25	22	19	16
Comfort	Bracing	Bracing	Bracing	Cool	Cool	Refreshing	Warm	Warm	Warm	Refreshing	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	14	Bracing
Feb	14	Bracing
Mar	14	Bracing
Apr	15	Cool
May	18	Cool
Jun	22	Refreshing
Jul	25	Warm
Aug	26	Warm
Sep	25	Warm
Oct	22	Refreshing
Nov	19	Cool
Dec	16	Cool

UV index in El Grao in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in El Grao peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	3	5	7	6	9	9	8	6	4	2	2
Level	Low	Moderate	High	High	High	Very high	Very high	Very high	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	3	Moderate
Mar	5	High
Apr	7	High
May	6	High
Jun	9	Very high
Jul	9	Very high
Aug	8	Very high
Sep	6	High
Oct	4	Moderate
Nov	2	Moderate
Dec	2	Low

Location & terrain

Where is El Grao?

El Grao sits at 40.0°N, 0.0°E, 6 m above sea level, in Spain. The nearest listed city is Castelló de la Plana, 5.0 km away.

Topography around El Grao

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of El Grao.

Within 3 km, the terrain around El Grao has only modest variations in elevation — a maximum elevation change of 23 m around an average of 2 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 728 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,022 m.

The land around El Grao is covered by water (37%), grassland (31%) and artificial surfaces (21%) within 3 km, water (47%) and trees (23%) within 16 km, and water (41%) and trees (28%) within 80 km.

3 km

23 m

water 37%

16 km

728 m

water 47%

80 km

2,022 m

water 41%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← November El Grao year-round climate January →Best places to visit in December

December weather nearby: Castelló de la Plana 5.0 km · Almassora 7.0 km · Benicàssim 10 km · Vila-real 10 km · Burriana 13 km · Moncofa 23 km · Onda 23 km · Sagunto 40 km

Spain travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 65% of US; price level, 2025
GDP per capita: $38,627; 2025
Happiness: 6.5 / 10; World Happiness, 2025
Safe drinking water: 99%; of population, 2024
Homicide rate: 0.7; per 100k, 2023
Road deaths: 3.9; per 100k/yr, 2019
Income group: High; World Bank
English: Moderate; EF EPI 540
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for El Grao (39.9736°, 0.0128°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	16	9
2	16	9
3	16	9
4	16	9
5	16	9
6	16	8
7	16	8
8	16	8
9	16	8
10	16	8
11	16	8
12	15	8
13	15	8
14	15	8
15	15	8
16	15	8
17	15	8
18	15	8
19	15	8
20	15	8
21	15	7
22	15	7
23	15	7
24	15	7
25	15	7
26	15	7
27	15	7
28	15	7
29	15	7
30	15	7
31	15	7

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	61	39
4	60	40
5	60	40
6	60	40
7	60	40
8	60	40
9	59	41
10	60	40
11	60	40
12	60	40
13	59	41
14	59	41
15	59	41
16	60	40
17	60	40
18	60	40
19	60	40
20	60	40
21	62	38
22	61	39
23	61	39
24	62	38
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	63	37

	Rain chance (%)
1	20
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	18
10	18
11	18
12	18
13	17
14	17
15	17
16	17
17	17
18	16
19	16
20	16
21	15
22	15
23	15
24	14
25	14
26	14
27	14
28	13
29	13
30	13
31	13

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Avg high (°C)	Avg low (°C)
1	16	9
2	16	9
3	16	9
4	16	9
5	16	9
6	16	8
7	16	8
8	16	8
9	16	8
10	16	8
11	16	8
12	15	8
13	15	8
14	15	8
15	15	8
16	15	8
17	15	8
18	15	8
19	15	8
20	15	8
21	15	7
22	15	7
23	15	7
24	15	7
25	15	7
26	15	7
27	15	7
28	15	7
29	15	7
30	15	7
31	15	7

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	61	39
4	60	40
5	60	40
6	60	40
7	60	40
8	60	40
9	59	41
10	60	40
11	60	40
12	60	40
13	59	41
14	59	41
15	59	41
16	60	40
17	60	40
18	60	40
19	60	40
20	60	40
21	62	38
22	61	39
23	61	39
24	62	38
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	63	37

	Rain chance (%)
1	20
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	18
10	18
11	18
12	18
13	17
14	17
15	17
16	17
17	17
18	16
19	16
20	16
21	15
22	15
23	15
24	14
25	14
26	14
27	14
28	13
29	13
30	13
31	13

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Avg high (°C)	Avg low (°C)
1	16	9
2	16	9
3	16	9
4	16	9
5	16	9
6	16	8
7	16	8
8	16	8
9	16	8
10	16	8
11	16	8
12	15	8
13	15	8
14	15	8
15	15	8
16	15	8
17	15	8
18	15	8
19	15	8
20	15	8
21	15	7
22	15	7
23	15	7
24	15	7
25	15	7
26	15	7
27	15	7
28	15	7
29	15	7
30	15	7
31	15	7

	Clearer (%)	Cloudier (%)
1	61	39
2	60	40
3	61	39
4	60	40
5	60	40
6	60	40
7	60	40
8	60	40
9	59	41
10	60	40
11	60	40
12	60	40
13	59	41
14	59	41
15	59	41
16	60	40
17	60	40
18	60	40
19	60	40
20	60	40
21	62	38
22	61	39
23	61	39
24	62	38
25	62	38
26	62	38
27	63	37
28	63	37
29	63	37
30	63	37
31	63	37

	Rain chance (%)
1	20
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	18
10	18
11	18
12	18
13	17
14	17
15	17
16	17
17	17
18	16
19	16
20	16
21	15
22	15
23	15
24	14
25	14
26	14
27	14
28	13
29	13
30	13
31	13

	Dry (%)	Comfortable (%)
1	97	3
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0