Platis Gialos Water Temperature & Swim Forecast
Greek beach near Mykonos.
Pleasant water with calm seas and a light breeze — great swimming conditions.
Current model estimate · updated 0 min ago · modelled, not a buoy measurement. How accurate is this?
Location
Platis Gialos on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
Rash vest or swimsuit
At 23.6°C most swimmers and surfers are comfortable in a swimsuit or thin rash top.
Recommendation tuned for Platis Gialos's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
Platis Gialos swimming conditions summary
- Water temperature
- 23.6°C
- Water feels
- Pleasant
- Swimmable today
- Yes — comfortable for most swimmers
- Swim conditions score
- 91/100 · Excellent
- Wetsuit needed
- Rash vest or swimsuit
- Air temperature
- —
- Waves
- 0.2 m · flat
- Wind
- —
- UV index
- —
- Average sea temperature (September)
- 25.0 °C
- Warmest months to swim
- July, August, September
At 23.6°C most swimmers and surfers are comfortable in a swimsuit or thin rash top. Current model estimate · updated 0 min ago. Water, wave, wind and UV values are Open-Meteo marine/weather model estimates, refreshed hourly — not buoy measurements.
Frequently asked questions
Can I swim at Platis Gialos right now?
The sea at Platis Gialos is currently 23.6°C — great swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.
What will the sea temperature be at Platis Gialos next week?
Based on long-term September averages and the latest marine model, expect the sea around Platis Gialos to sit close to 22.9°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.
When is the best month to swim at Platis Gialos?
July – August – September are typically the warmest months to swim at Platis Gialos, with sea temperatures at their seasonal peak.
Do I need a wetsuit at Platis Gialos?
With water currently at 23.6°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.
Can I swim at Platis Gialos today?
The sea is currently 23.6°C — excellent swimming conditions. Most swimmers will find it pleasant.
- • Located in Cyclades, Greece (Aegean Sea).
- • Family friendly with calm, accessible water.
- • Live data refreshed hourly from Open-Meteo Marine.
Monthly sea temperature averages
Tap any month to see what to expect — based on regional climatology.
Best time to swim in Platis Gialos
The sea in Platis Gialos peaks in August, when the water averages around 26°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 17°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 15°C, when cold-water swimmers dominate the coast.
Platis Gialos sea temperature history
Long-term climatology for Platis Gialos shows an annual mean sea temperature of 20°C, ranging from 15°C in winter to 26°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 Platis Gialos, 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.
Platis Gialos sea temperature: frequently asked questions
What is the warmest month to swim in Platis Gialos?
August is the warmest month in Platis Gialos, when the sea averages about 26°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Platis Gialos?
The coldest month in Platis Gialos is typically February, when the water averages around 15°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Platis Gialos without a wetsuit?
The main swimming season in Platis Gialos 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 Platis Gialos?
Outside peak summer the water in Platis Gialos drops toward 17°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 Platis Gialos?
The long-term annual mean sea temperature in Platis Gialos is about 20°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Platis Gialos?
The live reading at the top of this page shows the current sea temperature in Platis Gialos, 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 | 15°C | Bracing |
| Mar | 15°C | Bracing |
| Apr | 17°C | Bracing |
| May | 20°C | Pleasant |
| Jun | 23°C | Warm |
| Jul | 25°C | Warm |
| Aug ⭐ | 26°C | Hot |
| Sep | 25°C | Warm |
| Oct | 22°C | Warm |
| Nov | 20°C | Pleasant |
| Dec | 17°C | Bracing |
Nearby beaches
The closest coastline, with live water temperatures.