Your December weather guide
MildWeather in Belek in December
Belek in December suits a mild-weather break with flexible plans, not a holiday built around sunbathing. Daytime highs average 15°C, nights fall to around 8°C, and about 11 days bring rain. That makes outdoor time appealing when it is dry, but you will need layers and something waterproof. Go if you are happy to work around the weather; choose another month if dependable warmth and comfortable sea swimming are your priorities.
Long-term climate averages for Belek, not a forecast · 1991-2020
Belek, month by month
Your snapshot
At a glance
The useful details for Belek.
- Average daytime high
- 15.3°C
- 9 in 10 days stay below 19°C
- Average night-time low
- 8.1°C
- coldest 10% of nights: 4°C or lower
- Compared with London
- +7.6°C
- London averages 7.7°C in December
- Sea temperature
- 19.6°C
- year to year: 19°C to 20°C
- Sunshine per day (est.)
- 4.9h
- 52% of 9.5 h of daylight
- Rainy days (1 mm+)
- 11
- 178 mm over the month
- Humidity
- 72%
- Days over 25°C
- 0%
- none over 30°C
- Record high 1991-2020
- 23.8°C
- 2010-12-03
- Record low 1991-2020
- 0.1°C
- 1992-12-28
- Flight from London
- ≈ 4 h 24 min
- 2928 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 10th warmest month of the year in Belek. Within Turkey it is 6th of 18 (Turkey in December). Against London's average high of 7.7°C in December, Belek is 7.6°C warmer by day and 5.4°C warmer at night.
Daytime and night-time in December
The typical December day in Belek peaks at 15.3°C, but that is an average: the warmest 10% of days reach 18.5°C or more. Days over 25°C are rare. Nights average 8.1°C; one night in ten drops to 4.2°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 23.8°C (2010-12-03) and the coldest night 0.1°C (1992-12-28).
Rain in December
Wet (more than 8 rainy days): about 11 days with 1 mm or more, 178 mm in total. Year to year it varies a lot - the wettest December was 2001 with 392 mm, the driest 2015 with 5 mm. Humidity averages 72%.
Sea temperature in December
The sea averages 19.6°C - bracing (18-22°c). Depending on the year it ranges from 18.8°C to 20.3°C. For the warmest sea here, come in August (29.0°C).
Sunshine and daylight
Around 4.9 hours of sunshine a day (estimated from cloud cover), 9.5 hours of daylight: the sun rises about 08:01 and sets about 17:40 local time in mid-December. Average cloud cover is 48%.
Is December a good time to visit Belek?
December is not the strongest month here: mild days and frequent rain. The best months for Belek on our scoring are June, September, May; months averaging 25°C or more: May, Jun, Jul, Aug, Sep, Oct.
Mild afternoons, but limited winter daylight
The daytime average is comfortable for walking in layers rather than sitting outside in swimwear. Warmer days can reach 18.5°C or more, but that is a bonus rather than the temperature to plan around. There are about 4.9 hours of sunshine within 9.5 hours of daylight, so put outdoor plans in the brighter middle of the day rather than leaving them until late afternoon. The sea averages 19.6°C, which is bracing rather than comfortably warm. A swim may appeal if you tolerate cool water, but December is a poor fit if long, relaxed sessions in the sea are central to your holiday.
Rain and chilly evenings are the main catches
December is wet, with about 11 rainy days and 178 mm of rainfall across the month. Rain needs to be part of your plans, not treated as an unlikely interruption. Keep outdoor activities movable and have something indoors in mind when the forecast looks poor. The monthly figures do not mean every wet day is a washout, but they are a reason not to depend on uninterrupted sunshine. Pack a waterproof jacket, shoes you are comfortable wearing in rain, and warmer layers for evenings. Average lows are around 8°C, while the coldest nights can fall to 4°C or below, so a light summer wardrobe will not be enough.
A little perspective
Belek 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 | 13.6°C | 6.4°C | 17.8°C | 5.1 | 193 | 11 | 0% |
| February | 14.6°C | 6.4°C | 16.9°C | 5.8 | 112 | 9 | 0% |
| March | 17.2°C | 8.0°C | 16.7°C | 7.0 | 78 | 8 | 0% |
| April | 20.7°C | 10.6°C | 17.9°C | 7.9 | 51 | 7 | 9% |
| Maybest | 25.4°C | 14.8°C | 21.1°C | 9.7 | 41 | 5 | 54% |
| Junebest | 31.0°C | 19.6°C | 24.8°C | 12.6 | 7 | 2 | 98% |
| July | 34.7°C | 23.1°C | 27.8°C | 13.5 | 3 | 1 | 100% |
| August | 34.8°C | 23.6°C | 29.0°C | 12.6 | 2 | 1 | 100% |
| Septemberbest | 31.2°C | 20.1°C | 27.8°C | 10.9 | 17 | 2 | 98% |
| October | 26.0°C | 16.0°C | 25.2°C | 8.0 | 76 | 5 | 63% |
| November | 20.0°C | 11.3°C | 22.1°C | 6.3 | 110 | 7 | 7% |
| DecemberSelected | 15.3°C | 8.1°C | 19.6°C | 4.9 | 178 | 11 | 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
Belek in December FAQs
Plain answers, grounded in the averages.
Is Belek hot in December?
Belek is mild in December: the average daytime high is 15.3°C and nights average 8.1°C. Days over 25°C are rare in December.
Can you swim in the sea in Belek in December?
The sea around Belek averages 19.6°C in December, which is bracing - fine for a quick dip, cool for long swims. Between 1991 and 2020 it ranged from 19°C to 20°C depending on the year.
How much does it rain in Belek in December?
Belek sees about 11 rainy days (1 mm or more) and 178 mm of rain in a typical December. The wettest December between 1991 and 2020 was 2001 (392 mm) and the driest was 2015 (5 mm).
How sunny is Belek in December?
Belek gets around 4.9 hours of sunshine a day in December out of 9.5 hours of daylight (estimated from average cloud cover).
How does Belek compare with the UK in December?
Belek is on average 7.6°C warmer than London by day in December (15.3°C against 7.7°C).
What is the hottest December on record in Belek?
Between 1991 and 2020 the hottest December day in Belek reached 23.8°C on 2010-12-03, and the coldest night dropped to 0.1°C on 1992-12-28.
How much warmer is Belek than London in December?
Belek's average daytime high is 15.3°C, compared with 7.7°C in London - a difference of 7.6°C. That is a noticeable improvement for outdoor time, but it is still mild winter weather rather than summer warmth, especially once evening arrives.
How long is the flight from London?
The flight from London takes about 4 h 24 min, making Belek a short-haul option. The catch in December is the weather rather than the flight length: expect mild days and wet spells, not reliable beach heat.
Which months should I consider instead?
June, September and May are the strongest months overall for Belek's holiday weather. They are the alternatives to consider if December's mild temperatures and wet conditions do not suit your plans. December makes more sense when warmth is a preference rather than a requirement.
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 Belek. Sea temperature from the nearest 5 km sea cell, 4.3 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