July weather forecast
Santorini, Greece

July, being the peak of summer in Santorini, Greece, offers the warmest conditions in the year. The highest temperatures soar to 28°C (82.4°F), and the sea temperatures reach a pleasant 25.3°C (77.5°F). An almost negligible level of rainfall leaves the days dry and bright. While the daylight hours shorten marginally from the predecessor month, the hours of sunshine levels sustain at 13 hours. High sun exposure with a consistent UV index of 10 warns of potential sunburns in little time.

Temperature

Santorini experiences its highest temperatures in July, with an average peak of 28°C (82.4°F) and a low of 22°C (71.6°F).

Rainfall

July and August are months with the least rain in Santorini when the rain falls for 1 days and typically aggregates up to 1mm (0.04") of rain.

Sea temperature

In July, the average sea temperature is 25.3°C (77.5°F).
Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.

Daylight

The average length of the day in July in Santorini is 14h and 22min.
On the first day of July, sunrise is at 06:04 and sunset at 20:40. On the last day of the month, sunrise is at 06:24 and sunset at 20:24 EEST.

Sunshine

June and July, with an average of 13h of sunshine, are months with the most sunshine.

UV index

June and July, with an average maximum UV index of 10, are months with the highest UV index. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 10 in July transforms into the following instructions:
Always take safety measures. The skin and eyes are at risk if left exposed. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious. After every outdoor workout or swim, liberally apply and frequently reapply a broad-spectrum SPF 30+ sunscreen. Take caution! The UV rays from the Sun gain strength from sand and water reflections.