Average monthly water temperature in Athens, Greece
On this page you find the mean water temperature over the year in Athens (Attica), Greece. Discover when the water is at its warmest and coolest, perfect for planning your visit.
In Athens, the water undergoes seasonal changes. The warmest month is July, with an average water temperature of 24°C (75°F).
The coldest water temperature month, January, has an average temperature of 14°C (57°F). It may not be the ideal time for a swim.
Athens Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Athens - and find the best time to visit.
Athens 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Athens 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) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Top 5 secluded beaches in Greece
Explore Greece's hidden gems: secluded beaches like Fokos, Seychelles, Potami, Kedrodasos, and Mouros for tranquil adventures away from crowds.
Discover Zakynthos
On the Greek island you can discover the rugged coastline, authentic old villages, a beautiful interior and the caves with the beautiful azure water.
Why Santorini should be on every Bucket List
This Greek island is home to some of the most stunning scenery globally, with its beautiful Caldera views, white-washed houses and crystal-clear waters.