Agia Ermioni Weather & Climate: Best Time to Visit

The climate in Agia Ermioni is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a very warm 30°C (86°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 14°C (57°F).

At night, temperatures range from around 24°C (75°F) in August to 10°C (50°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Agia Ermioni receives mid-range precipitation levels, with 609 mm (24 in) annually. Agia Ermioni can be quite wet during December, receiving approximately 122 mm (4.8 in) of precipitation over 12 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 0.6 mm (0.02 in) of precipitation spread across 6 rainy days. For more details, please visit our Agia Ermioni Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

The mean water temperature over the year ranges from 15°C (59°F) in January to 24°C (75°F) in July.

Water temperature over the year

The relative humidity is high throughout the year in Agia Ermioni.

The city experiences its highest humidity in November, reaching 75%. In July, the humidity drops to its lowest level at 56%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year