Las Cabezas de San Juan weather in December

In December, Las Cabezas de San Juan sees average daytime highs of 17°C and overnight lows near 8°C, with 77 mm of rain across 7.4 wet days and about 9.5 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of December to 9 h 30 min by month's end. Set against the rest of the year, December is Las Cabezas de San Juan's 12th-clearest and 3rd-windiest month. For the whole year in context, see Las Cabezas de San Juan's year-round climate.

Daytime high
17°
11th warmest
Overnight low
3rd coldest
Rainfall
77 mm
7.4 wet days
Daylight
9 h 30 min
8:36 AM – 6:04 PM
Cloud cover
50%
12th clearest
Wind
10 km/h
3rd windiest
Solar energy
2.31 kWh/m²
Travel score
5.9
out of 10

Las Cabezas de San Juan is municipal capital of Las Cabezas de San Juan, Seville, Andalusia, Spain.

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 17°C through the month.

A typical December day in Las Cabezas de San Juan reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 20°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1188
2188
3188
4178
5178
6178
7178
8178
9178
10178
11178
12178
13178
14178
15178
16178
17178
18178
19178
20178
21178
22178
23178
24178
25178
26178
27177
28177
29177
30177
31167

How December really feels in Las Cabezas de San Juan

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Las Cabezas de San Juan weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 5579.85.7
Feb18° / 51610.66.5
Mar21° / 10°557.411.77.0
Apr23° / 12°496.912.97.4
May27° / 15°325.2147.5
Jun31° / 18°81.314.55.8
Jul34° / 20°20.314.34.1
Aug34° / 20°30.513.44.1
Sep30° / 18°293.712.35.9
Oct25° / 15°727.5117.3
Nov20° / 10°676.8106.9
Dec17° / 777.49.55.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25743
35743
45644
55644
65644
75545
85545
95545
105446
115446
125446
135347
145446
155446
165347
175347
185446
195446
205446
215545
225545
235545
245644
255644
265644
275644
285743
295743
305743
315842

Chance of precipitation in December

Any precipitation

Las Cabezas de San Juan gets around 77 mm of rain over 7.4 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
123
223
323
423
523
623
723
823
923
1023
1123
1223
1324
1424
1524
1624
1725
1825
1925
2025
2125
2225
2325
2425
2525
2624
2724
2824
2924
3023
3123

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19091
29181
39181
49181
59181
69181
79181
89181
99181
109181
119181
129181
139082
149082
159082
169082
179082
189082
199082
208983
218983
228983
238983
248983
258983
268983
279082
289082
299082
309082
319082

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.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 36 min at the start of December to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 8:24 AM to 8:42 AM, and sunset from 6:03 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.68:246:03
29.68:256:03
39.68:266:03
49.68:276:03
59.68:286:03
69.68:286:03
79.68:296:03
89.58:306:03
99.58:316:03
109.58:326:03
119.58:326:03
129.58:336:03
139.58:346:03
149.58:346:04
159.58:356:04
169.58:366:04
179.58:366:04
189.58:376:05
199.58:376:05
209.58:386:06
219.58:386:06
229.58:396:06
239.58:396:07
249.58:406:07
259.58:406:08
269.58:416:09
279.58:416:09
289.58:416:10
299.58:426:10
309.58:426:11
319.58:426:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.31 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 7.93 kWh/m² in July across the year — December's 2.31 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.4Moderate
Planning a trip in December

Is December a good time to visit Las Cabezas de San Juan?

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

5.9
Sightseeing
7th-best month of the year
1.4
Beach & pool
11th-best month of the year

December is a reasonable time to visit Las Cabezas de San Juan for sightseeing.

What to pack for Las Cabezas de San Juan in December

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

In December, Las Cabezas de San Juan sees daytime highs around 17°C and nights near 8°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Las Cabezas de San Juan in December

The nearest coast averages about 17°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 56 km away) is warmest in August at about 23°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 8 to Oct 21 — about 4.5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug23Refreshing
Sep22Refreshing
Oct20Refreshing
Nov18Cool
Dec17Cool

UV index in Las Cabezas de San Juan 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 Las Cabezas de San Juan peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJul 16UV 10Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar7High
Apr8Very high
May7Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep7High
Oct5High
Nov3Moderate
Dec2Moderate
Location & terrain

Where is Las Cabezas de San Juan?

Las Cabezas de San Juan sits at 37.0°N, 5.9°W, 46 m above sea level, in Spain. The nearest listed city is Lebrija, 14 km away.

Topography around Las Cabezas de San Juan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Las Cabezas de San Juan.

Within 3 km, the terrain around Las Cabezas de San Juan has only modest variations in elevation — a maximum elevation change of 73 m around an average of 25 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 385 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,750 m.

The land around Las Cabezas de San Juan is covered by cropland (72%) within 3 km, cropland (69%) within 16 km, and cropland (34%), trees (22%) and grassland (20%) within 80 km.

3 km
73 m
16 km
385 m
80 km
1,750 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Lebrija 14 km · Los Palacios y Villafranca 20 km · Utrera 26 km · Arcos de la Frontera 28 km · Dos Hermanas 33 km · Coria del Río 35 km · Jerez de la Frontera 37 km · Alcalá de Guadaira 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
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 Las Cabezas de San Juan (36.9838°, -5.9393°, elevation 46 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).