La Línea de la Concepción weather in December

In December, La Línea de la Concepción sees average daytime highs of 16°C and overnight lows near 13°C, with 114 mm of rain across 10.1 wet days and about 9.6 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 40% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is La Línea de la Concepción's 12th-clearest and 3rd-windiest month. For the whole year in context, see La Línea de la Concepción's year-round climate.

Daytime high
16°
10th warmest
Overnight low
13°
4th coldest
Rainfall
114 mm
10.1 wet days
Daylight
9 h 36 min
8:31 AM – 6:04 PM
Cloud cover
52%
12th clearest
Wind
18 km/h
3rd windiest
Solar energy
2.36 kWh/m²
Travel score
5.0
out of 10

La Línea de la Concepción is municipal capital of La Línea de la Concepción, Cádiz, Andalusia, Spain.

Air quality
Good
PM10 28.3 µg/m³ · 2015

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 16°C through the month.

A typical December day in La Línea de la Concepción reaches about 16°C in the afternoon and slips back to 13°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 18°C. Set against its neighbours, December runs about 2°C cooler than November and about 1°C warmer than January.

10°13°15°18°20°151015202531
Avg high (°C)Avg low (°C)
11613
21613
31613
41613
51613
61613
71613
81613
91613
101613
111613
121613
131613
141613
151613
161613
171613
181613
191613
201613
211513
221513
231513
241513
251513
261513
271513
281513
291513
301513
311513

La Línea de la Concepción weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 12°899.49.84.7
Feb15° / 12°777.810.64.8
Mar16° / 13°777.911.75.5
Apr17° / 14°496.312.96.4
May20° / 16°243.813.97.6
Jun22° / 19°50.814.49.0
Jul25° / 21°10.114.29.5
Aug25° / 22°40.713.49.1
Sep23° / 20°323.312.28.5
Oct20° / 18°777.411.17.0
Nov17° / 15°948.710.16.0
Dec16° / 13°11410.19.65.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55941
65941
75941
85941
95941
105941
115842
125842
135743
145743
155644
165545
175644
185545
195545
205545
215545
225545
235545
245545
255644
265644
275644
285743
295842
305842
315941

Chance of precipitation in December

Any precipitation

La Línea de la Concepción gets around 114 mm of rain over 10.1 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 32% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
132
232
332
432
532
632
732
832
932
1032
1132
1232
1332
1432
1533
1633
1733
1834
1934
2034
2134
2234
2334
2433
2533
2632
2732
2831
2931
3030
3130

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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
17921
28020
38119
48218
58317
68317
78416
88416
98416
108515
118515
128614
138614
148614
158614
168614
178713
188713
198713
208713
218713
228812
238812
248812
258812
268812
278911
288911
298911
309010
319010

Wind in December

Winds average 18 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 36 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 8:20 AM to 8:37 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)
19.78:206:03
29.78:206:03
39.78:216:02
49.78:226:02
59.78:236:02
69.68:246:02
79.68:256:02
89.68:256:03
99.68:266:03
109.68:276:03
119.68:286:03
129.68:286:03
139.68:296:03
149.68:306:04
159.68:306:04
169.68:316:04
179.58:326:04
189.58:326:05
199.58:336:05
209.58:336:06
219.58:346:06
229.58:346:06
239.58:356:07
249.58:356:07
259.58:366:08
269.58:366:09
279.58:366:09
289.68:376:10
299.68:376:10
309.68:376:11
319.68:376:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.36 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 7.81 kWh/m² in June across the year — December's 2.36 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for La Línea de la Concepción

In seasonPeak

In December, La Línea de la Concepción sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

La Línea de la Concepción's rainy season runs October–March, when most of the year's rain falls.

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

Is December a good time to visit La Línea de la Concepción?

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

5.0
Sightseeing
10th-best month of the year
0.4
Beach & pool
10th-best month of the year

December is a reasonable time to visit La Línea de la Concepción for sightseeing.

What to pack for La Línea de la Concepción in December

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

In December, La Línea de la Concepción sees daytime highs around 16°C and nights near 13°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near La Línea de la Concepción 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 offshore is warmest in August at about 22°C and coldest in February near 15°C.

It's comfortable for a long swim from Jul 5 to Sep 29 — about 2.9 months when the water holds above 20°C.

15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May17Cool
Jun19Cool
Jul21Refreshing
Aug22Refreshing
Sep21Refreshing
Oct19Cool
Nov18Cool
Dec17Cool

UV index in La Línea de la Concepción 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 La Línea de la Concepción peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJul 17UV 10Dec 21UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar7High
Apr9Very high
May8Very high
Jun8Very high
Jul10Extreme
Aug8Very high
Sep7High
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in La Línea de la Concepción in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in La Línea de la Concepción is worst in March — around 17 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (June, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodMar 1616 µg/m³Jun 1410 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar17Moderate
Apr14Moderate
May12Good
Jun10Good
Jul13Moderate
Aug13Moderate
Sep13Moderate
Oct13Moderate
Nov12Good
Dec11Good
Location & terrain

Where is La Línea de la Concepción?

La Línea de la Concepción sits at 36.2°N, 5.3°W, 4 m above sea level, in Spain. The nearest listed city is Gibraltar, 3.0 km away.

Topography around La Línea de la Concepción

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Línea de la Concepción.

Within 3 km, the terrain around La Línea de la Concepción has significant variations in elevation — a maximum elevation change of 299 m around an average of 13 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 598 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,887 m.

The land around La Línea de la Concepción is covered by water (46%) and artificial surfaces (30%) within 3 km, water (58%) and trees (20%) within 16 km, and water (43%) and trees (22%) within 80 km.

3 km
299 m
16 km
598 m
80 km
1,887 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Gibraltar 3.0 km · San Roque 6.0 km · Algeciras 10 km · Los Barrios 13 km · Tarifa 29 km · Ceuta 31 km · Estepona 34 km · Fnidek 35 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 La Línea de la Concepción (36.1681°, -5.3478°, elevation 4 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).