July weather forecast and climate
Corfu, Greece

July is a hot summer month in Corfu, Greece, with average temperature varying between 30.9°C (87.6°F) and 18.4°C (65.1°F).
The ideal sea water temperature of 25.3°C (77.5°F) and only 2.3 rainfall days, with 9.2mm (0.4") of accumulated rainfall, make July the best time for swimming and other water activities.

Temperature

In July, the average high-temperature is practically the same as in June - a hot 30.9°C (87.6°F). In Corfu, the average low-temperature is 18.4°C (65.1°F).

Heat index

In July, the average heat index is calculated to a tropical 34.6°C (94.3°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, pregnancy, clothing). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

July is the least humid month, with an average relative humidity of 60%.

Rainfall

July is the month with the least rainfall in Corfu, Greece. Rain falls for 2.3 days and accumulates 9.2mm (0.4") of precipitation.

Sea temperature

In July, the average sea temperature in Corfu is 25.3°C (77.5°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in Corfu is 14.6h.

Sunshine

July has the most sunshine of the year, with an average of 11.8h of sunshine.

UV index

Months with the highest UV index in Corfu are June and July, with an average maximum UV index of 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 9 interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.