Your December weather guide
MildWeather in Andalucia in December
Andalucia in December suits a mild-weather break, not a hot holiday. Daytime highs average 16°C, nights fall to around 10°C, and about 8 days bring rain. For a UK traveller, the appeal is time outdoors without summer heat; the catch is that sunshine is limited, evenings need layers and the sea is cold. Go if you are happy to work around showers rather than expect reliable warmth.
Long-term climate averages for Seville, not a forecast · 1991-2020
Andalucia, month by month
Your snapshot
At a glance
The useful details for Seville.
- Average daytime high
- 15.6°C
- 9 in 10 days stay below 18°C
- Average night-time low
- 9.7°C
- coldest 10% of nights: 7°C or lower
- Compared with London
- +7.9°C
- London averages 7.7°C in December
- Sea temperature
- 15.9°C
- year to year: 15°C to 17°C
- Sunshine per day (est.)
- 4.7h
- 49% of 9.5 h of daylight
- Rainy days (1 mm+)
- 8
- 79 mm over the month
- Humidity
- 78%
- Days over 25°C
- 0%
- none over 30°C
- Record high 1991-2020
- 24.5°C
- 2018-12-03
- Record low 1991-2020
- -1.9°C
- 1994-12-27
- Flight from London
- ≈ 2 h 42 min
- 1597 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How December compares
December is the 11th warmest month of the year in Andalucia. Within Spain it is 42nd of 87 (Spain in December). Against London's average high of 7.7°C in December, Andalucia is 7.9°C warmer by day and 7.0°C warmer at night.
Daytime and night-time in December
The typical December day in Andalucia peaks at 15.6°C, but that is an average: the warmest 10% of days reach 18.4°C or more. Days over 25°C are rare. Nights average 9.7°C; one night in ten drops to 6.5°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest December day here reached 24.5°C (2018-12-03) and the coldest night -1.9°C (1994-12-27).
Rain in December
Some rain (4-8 rainy days): about 8 days with 1 mm or more, 79 mm in total. Year to year it varies a lot - the wettest December was 1996 with 468 mm, the driest 1994 with 0 mm. Humidity averages 78%.
Sea temperature in December
The sea averages 15.9°C - too cold for most (under 18°c). Depending on the year it ranges from 15.4°C to 16.6°C. For the warmest sea here, come in August (23.0°C).
Sunshine and daylight
Around 4.7 hours of sunshine a day (estimated from cloud cover), 9.5 hours of daylight: the sun rises about 08:31 and sets about 18:07 local time in mid-December. Average cloud cover is 51%.
Is December a good time to visit Andalucia?
December is not the strongest month here: mild days. The best months for Andalucia on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Mild afternoons, cool evenings and a cold sea
Pack for comfortable daytime walking rather than days in swimwear. A light jumper with a jacket to add or remove is more useful than relying on summer clothes. Warmer days can reach around 18°C, but colder nights drop to about 7°C or below, so keep something warmer for evenings out. Midday is the sensible time to make the most of the warmth, rather than a period you need to avoid. The sea averages 15.9°C, which is cold: casual swimming is unlikely to be the main pleasure of the trip. This month suits travellers who prefer mild conditions and do not need beach weather.
Keep outdoor plans flexible
Rain is a meaningful part of the December trade-off, but it need not dictate the whole trip. With about 8 rainy days during the month, a waterproof jacket and shoes that cope with wet weather deserve space in your bag. Keep outdoor plans movable so you can use brighter spells when they arrive. There are about 4.7 hours of sunshine within 9.5 hours of daylight, so do not mistake a mild forecast for long, sunny days. Put your main outdoor time earlier in the day rather than leaving it until late afternoon. December works best if you are comfortable changing plans when the weather turns.
A little perspective
Andalucia through the year
December is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 14.8°C | 8.4°C | 15.2°C | 5.2 | 60 | 8 | 0% |
| February | 15.6°C | 8.8°C | 14.8°C | 6.0 | 52 | 7 | 0% |
| March | 17.5°C | 10.3°C | 15.2°C | 6.3 | 59 | 7 | 2% |
| April | 19.2°C | 11.9°C | 15.9°C | 7.4 | 46 | 7 | 5% |
| May | 22.4°C | 14.7°C | 17.3°C | 8.7 | 28 | 5 | 21% |
| Junebest | 26.5°C | 18.3°C | 19.4°C | 11.4 | 8 | 1 | 64% |
| Julybest | 29.6°C | 20.9°C | 21.7°C | 12.8 | 1 | 0 | 93% |
| Augustbest | 29.7°C | 21.4°C | 23.0°C | 11.2 | 4 | 1 | 96% |
| September | 26.3°C | 18.9°C | 21.5°C | 8.3 | 27 | 4 | 64% |
| October | 22.3°C | 15.7°C | 19.4°C | 6.0 | 64 | 7 | 18% |
| November | 18.0°C | 11.8°C | 17.3°C | 5.4 | 74 | 7 | 1% |
| DecemberSelected | 15.6°C | 9.7°C | 15.9°C | 4.7 | 79 | 8 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in December
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Andalucia in December FAQs
Plain answers, grounded in the averages.
Is Andalucia hot in December?
Andalucia is mild in December: the average daytime high is 15.6°C and nights average 9.7°C. Days over 25°C are rare in December.
Can you swim in the sea in Andalucia in December?
The sea around Andalucia averages 15.9°C in December, which is cold for swimming without a wetsuit. Between 1991 and 2020 it ranged from 15°C to 17°C depending on the year.
How much does it rain in Andalucia in December?
Andalucia sees about 8 rainy days (1 mm or more) and 79 mm of rain in a typical December. The wettest December between 1991 and 2020 was 1996 (468 mm) and the driest was 1994 (0 mm).
How sunny is Andalucia in December?
Andalucia gets around 4.7 hours of sunshine a day in December out of 9.5 hours of daylight (estimated from average cloud cover).
How does Andalucia compare with the UK in December?
Andalucia is on average 7.9°C warmer than London by day in December (15.6°C against 7.7°C).
What is the hottest December on record in Andalucia?
Between 1991 and 2020 the hottest December day in Andalucia reached 24.5°C on 2018-12-03, and the coldest night dropped to -1.9°C on 1994-12-27.
How much warmer is Andalucia than London in December?
Average daytime highs are about 16°C in Andalucia against 8°C in London, a difference of roughly 8°C. That makes Andalucia a milder option for time outdoors, but it is still jacket weather rather than dependable warmth for sitting out all evening.
Is December a sensible choice for a short break?
It can be, with a flight from London of about 2 h 42 min and mild daytime conditions. The main compromise is weather reliability: rain and limited daylight make flexible plans more useful than an itinerary built entirely around being outdoors.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Sevilla (Seville). Sea temperature from the nearest 5 km sea cell, 3 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C