Sea temperature in Evia in August
The sea around Evia averages 27°C in August, usually between 25°C and 29°C. That is warm enough for most people to swim comfortably.
Average27°CVery warm
Usual range25°C–29°C80% of readings
vs July+3.3°warmer
vs September−4.5°cooler next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: July–September.
August in recent years
| 2023 | 28°C |
|---|---|
| 2024 | 28°C |
| 2025 | 27°C |
Nearby in August
Beaches in Evia
60 of 62 beaches have an Excellent EU water-quality grade. See which ones are calm today.