Average monthly water temperature in Rio, Greece
On this page you find the mean water temperature over the year in Rio (the Peloponnese), Greece. Discover the unique water temperature patterns, from its warmest to its coolest months.
Rio experiences water temperature shifts throughout the year. The warmest month, August, reaches an average of 26°C (79°F).
The coldest month, February, averages 15°C (59°F). Visitors during these months can leave their swimming gear at home.
Rio Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rio - and find the best time to visit.
Rio 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Rio climate overview or explore weather in Greece.
Popular this month
Where to go in August - average daytime high across popular destinations.
Athens
33°C (91°F) Kalambaka33°C (91°F) Hersonissos30°C (86°F) Chania Town27°C (81°F) Oía
27°C (81°F) Naxos Chora27°C (81°F) Fira27°C (81°F) Mýkonos City27°C (81°F) 
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