Sea temperature in Thessaloniki in July
The sea around Thessaloniki averages 28°C in July, usually between 26°C and 30°C. That is warm enough for most people to swim comfortably.
Average28°CVery warm
Usual range26°C–30°C80% of readings
vs June+3.3°warmer
vs August−0.2°cooler next month
Through the year
Monthly averages 2023–2025. Water at 22°C or warmer: June–October.
July in recent years
| 2023 | 27°C |
|---|---|
| 2024 | 29°C |
| 2025 | 27°C |
Nearby in July
Beaches in Thessaloniki
10 of 10 beaches have an Excellent EU water-quality grade. See which ones are calm today.