Weather In Greece In October 2025. The average water temperature in october is 23°c (74°f) which is pleasant, and the average daily highs are also 23°c (74°f) or warmer. Weather in athens for october 2025.

The forecast for the next days in crete predicts temperatures to be around. Expect 22°c daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in greece in.