Skiathos Sea Temperature
Updated Mon 05:17 (Europe/Athens)
Greece · Forecast updated Aug 10, 2026, 05:17 UTC
Current Sea Temperature
28.0°C
82.4°F
Very warm water
Versus this month's average
0.8°C above
The August average in our archive is 27.2°C (81.0°F).
Recent trend
Warming by 0.6°C
Seven-day average: 27.4°C, versus 26.9°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions.
Sea Surface Temperature Over the Year
In the data collected for Skiathos, monthly averages range from about 24.4°C (75.9°F) in June to 27.2°C (81.0°F) in August.
Over the past 30 days, the average sea temperature in Skiathos has been 27.3°C.
Monthly Water Temperature Averages
| Month | Min | Average | Max |
|---|---|---|---|
| June | 22.1°C / 71.8°F | 24.4°C / 75.9°F | 25.8°C / 78.4°F |
| July | 25.2°C / 77.4°F | 26.9°C / 80.5°F | 29.0°C / 84.2°F |
| August | 26.2°C / 79.2°F | 27.2°C / 81.0°F | 28.3°C / 82.9°F |
Profile calculated from 1694 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Skiathos
Sporades island with pine-backed coves and clear turquoise water.
- Area
- Sporades
Skiathos Water Temperature: Common Questions
What is the sea temperature in Skiathos today?
The current sea surface temperature in Skiathos is 28.0°C. Over the last 30 days, the average has been 27.3°C.
When is the water warmest in Skiathos?
The warmest monthly average in the Skiathos archive is August, at around 27.2°C (81.0°F).
When is the water coldest in Skiathos?
The coldest monthly average in the archive is June, at around 24.4°C (75.9°F).
Can you swim in Skiathos today?
At 28.0°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Skiathos.
View Snorkel Forecast →