The current water temperature at Baltic Sea is 18.3 °C (as of July 18, 2026, source: official monitoring networks).
18.3 °C
Measured: July 18, 2026 · continuously updated
Temperature trend of recent weeks
Water quality
EU classification: excellent
Frequently asked questions
Can you swim at Baltic Sea right now? The current water temperature is 18.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Baltic Sea? Currently 18.3 °C (updated continuously).