El Astillero weather in December

In December, El Astillero sees average daytime highs of 13°C and overnight lows near 9°C, with 114 mm of rain across 13.9 wet days and about 8.8 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 19% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of December to 8 h 48 min by month's end. Set against the rest of the year, December is El Astillero's 11th-clearest and 1st-windiest month. For the whole year in context, see El Astillero's year-round climate.

Daytime high
13°
10th warmest
Overnight low
3rd coldest
Rainfall
114 mm
13.9 wet days
Daylight
8 h 48 min
8:48 AM – 5:35 PM
Cloud cover
68%
11th clearest
Wind
14 km/h
1st windiest
Solar energy
1.43 kWh/m²
Travel score
3.2
out of 10

El Astillero is place in the homonymous Spanish municipality.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 13°C through the month.

A typical December day in El Astillero reaches about 13°C in the afternoon and slips back to 9°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 16°C. Set against its neighbours, December runs about 2°C cooler than November and about 1°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11310
2139
3139
4139
5139
6139
7139
8139
9139
10139
11139
12139
13139
14139
15139
16139
17139
18139
19139
20139
21139
22139
23139
24139
25138
26138
27138
28138
29138
30138
31138

El Astillero weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 11514.69.22.8
Feb12° / 10312.910.22.9
Mar14° / 10412.911.63.6
Apr15° / 10°10314.813.23.9
May17° / 13°8614.114.55.0
Jun20° / 16°6810.915.26.1
Jul22° / 18°5410.314.96.7
Aug23° / 18°6010.313.86.9
Sep21° / 17°7811.312.36.3
Oct19° / 14°10913.310.85.5
Nov15° / 11°15015.89.53.9
Dec13° / 11413.98.83.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
22971
33070
43169
53169
63169
73268
83268
93268
103367
113466
123565
133466
143466
153466
163565
173565
183565
193466
203466
213565
223565
233466
243367
253367
263466
273466
283466
293466
303466
313466

Chance of precipitation in December

Any precipitation

El Astillero gets around 114 mm of rain over 13.9 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 45% and peaks near 52% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
152
251
351
450
549
648
748
847
946
1045
1145
1244
1343
1443
1543
1642
1742
1842
1942
2042
2142
2242
2342
2442
2543
2643
2743
2843
2943
3044
3144

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.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 14 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 hours at the start of December to 8 h 48 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 8:35 AM to 8:54 AM, and sunset from 5:36 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.08:355:36
29.08:365:35
39.08:375:35
49.08:385:35
58.98:395:35
68.98:405:35
78.98:405:34
88.98:415:34
98.98:425:34
108.98:435:34
118.88:445:34
128.88:455:34
138.88:465:35
148.88:465:35
158.88:475:35
168.88:485:35
178.88:485:36
188.88:495:36
198.88:505:36
208.88:505:37
218.88:515:37
228.88:515:37
238.88:525:38
248.88:525:38
258.88:525:39
268.88:535:40
278.88:535:40
288.88:535:41
298.88:545:42
308.88:545:42
318.88:545:43

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.43 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.43 kWh/m² to a high of 6.1 kWh/m² in June across the year — December's 1.43 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.5Dim
21.5Dim
31.5Dim
41.5Dim
51.5Dim
61.5Dim
71.4Dim
81.4Dim
91.4Dim
101.4Dim
111.4Dim
121.4Dim
131.4Dim
141.4Dim
151.4Dim
161.4Dim
171.4Dim
181.4Dim
191.4Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.4Dim
261.4Dim
271.4Dim
281.4Dim
291.4Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit El Astillero?

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

3.2
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in El Astillero.

What to pack for El Astillero in December

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

In December, El Astillero sees daytime highs around 13°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 14 days see rain.

a warm layerrain gear

Sea temperature near El Astillero in December

The nearest coast averages about 14°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 25 km away) is warmest in August at about 22°C and coldest in February near 13°C.

It's comfortable for a long swim from Jul 13 to Sep 21 — about 2.3 months when the water holds above 20°C.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb13Bracing
Mar13Bracing
Apr13Bracing
May15Cool
Jun18Cool
Jul20Refreshing
Aug22Refreshing
Sep20Refreshing
Oct18Cool
Nov16Cool
Dec14Bracing

UV index in El Astillero in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in El Astillero peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar5Moderate
Apr6High
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is El Astillero?

El Astillero sits at 43.4°N, 3.8°W, 33 m above sea level, in Spain. The nearest listed city is Camargo, 5.0 km away.

Topography around El Astillero

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

Within 3 km, the terrain around El Astillero has significant variations in elevation — a maximum elevation change of 390 m around an average of 41 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 955 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,387 m.

The land around El Astillero is covered by grassland (33%), trees (31%) and artificial surfaces (20%) within 3 km, grassland (36%), trees (32%) and water (23%) within 16 km, and water (35%), trees (33%) and grassland (27%) within 80 km.

3 km
390 m
16 km
955 m
80 km
2,387 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Camargo 5.0 km · Santander 7.0 km · Torrelavega 19 km · Castro-Urdiales 49 km · Santurtzi 64 km · Portugalete 65 km · Getxo 66 km · Algorta 66 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
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Astillero (43.4009°, -3.8205°, elevation 33 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).