Sea temperature in Santorini in July
The sea around Santorini averages 25°C in July, usually between 24°C and 26°C. That is warm enough for most people to swim comfortably.
Average25°CWarm
Usual range24°C–26°C80% of readings
vs June+1.9°warmer
vs August+1.3°warmer next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: June–October.
July in recent years
| 2023 | 25°C |
|---|---|
| 2024 | 25°C |
| 2025 | 25°C |
Nearby in July
Beaches in Santorini
7 of 7 beaches have an Excellent EU water-quality grade. See which ones are calm today.