July weather forecast
Ermoupoli, Greece

July, the same as June, is a moderately hot summer month in Ermoupoli, Greece, with an average temperature ranging between min 22°C (71.6°F) and max 28°C (82.4°F).
The ideal sea water temperature of 25.1°C (77.2°F) and only 1 rainfall days, with 2mm (0.08") of accumulated rainfall, makes July the best time for swimming and other water activities.

Temperature

July temperatures tend to peak at an average high of 28°C (82.4°F) and dip to a low of 22°C (71.6°F).

Rainfall

The months with the least rainfall in Ermoupoli are July and August Rain falls for 1 days and accumulates 2mm (0.08") of rain.

Sea temperature

In July, the average sea temperature is 25.1°C (77.2°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

The average length of the day in July is 14h and 27min.
On the first day of the month, sunrise is at 06:03 and sunset at 20:45. On the last day of July, in Ermoupoli, sunrise is at 06:24 and sunset at 20:29 EEST.

Sunshine

The month with the most sunshine is July, with an average of 14h of sunshine.

UV index

July is the month with the highest UV index in Ermoupoli, Greece, with an average maximum UV index of 10. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In July, the maximum UV index of 10 translates into these guidelines:
Precautions are essential; the risk of damage to unprotected skin and eyes is too high. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Even on overcast days, ensure the application and frequent reapplication of sunscreen with at least an SPF 30, especially post swim or outdoor exercise. Take note! The UV strength of the Sun elevates when reflected off water and sand.