Ölüdeniz — Sea temperature now
World-famous Blue Lagoon.
Warm water with a light chop and a light breeze — great swimming conditions.
Location
Ölüdeniz on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
Monthly sea temperature averages
Typical year-round water temperature, based on regional climatology.
Best time to swim in Ölüdeniz
The sea in Ölüdeniz peaks in August, when the water averages around 27°C.
The main swimming season runs from May – November, when surface temperatures stay comfortable for extended sessions.
On average, 7 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like April and December are noticeably cooler but often quieter, with fewer crowds and steadier weather.
Outside peak season the water drops toward 18°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically January at around 16°C, when cold-water swimmers dominate the coast.
Ölüdeniz sea temperature history
Long-term climatology for Ölüdeniz shows an annual mean sea temperature of 21°C, ranging from 16°C in winter to 27°C at the summer peak.
The seasonal swing is roughly 11°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Ölüdeniz, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Ölüdeniz sea temperature: frequently asked questions
What is the warmest month to swim in Ölüdeniz?
August is the warmest month in Ölüdeniz, when the sea averages about 27°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Ölüdeniz?
The coldest month in Ölüdeniz is typically January, when the water averages around 16°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Ölüdeniz without a wetsuit?
The main swimming season in Ölüdeniz runs from May – November — about 7 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Ölüdeniz?
Outside peak summer the water in Ölüdeniz drops toward 18°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Ölüdeniz?
The long-term annual mean sea temperature in Ölüdeniz is about 21°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Ölüdeniz?
The live reading at the top of this page shows the current sea temperature in Ölüdeniz, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
Best swim months: May – Jun – Jul – Aug – Sep – Oct – Nov
| Month | Sea | Comfort |
|---|---|---|
| Jan | 16°C | Bracing |
| Feb | 16°C | Bracing |
| Mar | 16°C | Bracing |
| Apr | 17°C | Bracing |
| May | 20°C | Pleasant |
| Jun | 24°C | Warm |
| Jul | 26°C | Hot |
| Aug ⭐ | 27°C | Hot |
| Sep | 26°C | Hot |
| Oct | 23°C | Warm |
| Nov | 20°C | Pleasant |
| Dec | 18°C | Pleasant |