Your September weather guide
HotWeather in Belek in September
September is a good choice for Belek if you want hot days and warm-water swimming, rather than mild autumn weather. Average daytime highs are around 31°C, the sea is around 28°C, and rain falls on about 2 days across the month. The catch is the heat: this is still a month for shade at midday, not unrestricted activity in the sun. It suits travellers happy to keep their plans relaxed.
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
- 31.2°C
- 9 in 10 days stay below 35°C
- Average night-time low
- 20.1°C
- coldest 10% of nights: 17°C or lower
- Compared with London
- +12.6°C
- London averages 18.6°C in September
- Sea temperature
- 27.8°C
- year to year: 27°C to 29°C
- Sunshine per day (est.)
- 10.9h
- 89% of 12.2 h of daylight
- Rainy days (1 mm+)
- 2
- 17 mm over the month
- Humidity
- 59%
- Days over 25°C
- 98%
- 66% over 30°C
- Record high 1991-2020
- 40.7°C
- 2018-09-02
- Record low 1991-2020
- 12.5°C
- 1992-09-30
- 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 September compares
September is the 3rd warmest month of the year in Belek. Within Turkey it is 1st of 18 (Turkey in September). Against London's average high of 18.6°C in September, Belek is 12.6°C warmer by day and 8.9°C warmer at night.
Daytime and night-time in September
The typical September day in Belek peaks at 31.2°C, but that is an average: the warmest 10% of days reach 35.1°C or more. About 98% of days top 25°C and 1 in 2 pass 30°C. Nights average 20.1°C; one night in ten drops to 17.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest September day here reached 40.7°C (2018-09-02) and the coldest night 12.5°C (1992-09-30).
Rain in September
Dry (3 rainy days or fewer): about 2 days with 1 mm or more, 17 mm in total. Year to year it varies a lot - the wettest September was 2006 with 69 mm, the driest 1991 with 0 mm. Humidity averages 59%.
Sea temperature in September
The sea averages 27.8°C - warm enough to swim (22°c+). Depending on the year it ranges from 27.0°C to 28.7°C. For the warmest sea here, come in August (29.0°C).
Sunshine and daylight
Around 10.9 hours of sunshine a day (estimated from cloud cover), 12.2 hours of daylight: the sun rises about 06:38 and sets about 19:04 local time in mid-September. Average cloud cover is 11%.
Is September a good time to visit Belek?
Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for Belek on our scoring are June, September, May; months averaging 25°C or more: May, Jun, Jul, Aug, Sep, Oct.
Expect summer heat, not an autumn cool-down
Pack for hot weather and plan anything energetic for the cooler parts of the day. Temperatures reach 30°C on 66% of September days, while the hottest days can reach 35°C or more. That makes a shaded lunch break more appealing than a long walk in full sun. Light, loose clothing, a hat and sun protection belong in your daily kit. Average night-time lows are around 20°C, so evenings generally stay warm, though a light layer is sensible if you feel the cold. September works well for heat lovers, but it is less convincing if your priority is comfortably mild weather throughout the day.
Warm swimming water and little rain
The sea is a strong reason to choose September: at an average of 27.8°C, it is warm enough for comfortable swimming rather than a quick, bracing dip. Even the year-to-year range of 27°C to 29°C keeps it firmly in warm-water territory. There is plenty of time outdoors too, with about 10.9 hours of sunshine a day, although that also means taking shade seriously. Rain is usually a small interruption rather than something to organise the holiday around, with about 2 rainy days during the month. That is not a guarantee of dry skies, so keep some flexibility in your plans. For a holiday centred on swimming and resting between outings, the weather is a good fit.
A little perspective
Belek through the year
September 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% |
| SeptemberSelectedbest | 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% |
| December | 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 September
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Belek in September FAQs
Plain answers, grounded in the averages.
Is Belek hot in September?
Belek is hot in September: the average daytime high is 31.2°C and nights average 20.1°C. About 98% of September days reach 25°C or more.
Can you swim in the sea in Belek in September?
The sea around Belek averages 27.8°C in September, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 27°C to 29°C depending on the year.
How much does it rain in Belek in September?
Belek sees about 2 rainy days (1 mm or more) and 17 mm of rain in a typical September. The wettest September between 1991 and 2020 was 2006 (69 mm) and the driest was 1991 (0 mm).
How sunny is Belek in September?
Belek gets around 10.9 hours of sunshine a day in September out of 12.2 hours of daylight (estimated from average cloud cover).
How does Belek compare with the UK in September?
Belek is on average 12.6°C warmer than London by day in September (31.2°C against 18.6°C).
What is the hottest September on record in Belek?
Between 1991 and 2020 the hottest September day in Belek reached 40.7°C on 2018-09-02, and the coldest night dropped to 12.5°C on 1992-09-30.
How much hotter is Belek than London in September?
Belek's average daytime high is 31.2°C, compared with London's 18.6°C, a difference of 12.6°C. Pack for summer rather than a typical British September, and allow for the heat when planning time outdoors.
Will I need a jacket in the evening?
A light layer is sensible, but heavy outerwear is unlikely to be useful on a typical evening. Average night-time lows are 20.1°C, though the coldest 10% of nights reach 17.2°C or lower, so it will not always feel equally warm.
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