May weather forecast and climate
Oia, Greece

The last month of the spring, May, is a pleasant month in Oia, Greece, with temperature in the range of an average low of 16°C (60.8°F) and an average high of 22°C (71.6°F).

Temperature

In Oia, the average high-temperature slightly increases, from a comfortable 19°C (66.2°F) in April, to an agreeable 22°C (71.6°F). In May, in Oia, the average low-temperature is 16°C (60.8°F).

Rainfall

In Oia, it is raining for 3 days, with typically 14mm (0.6") of accumulated precipitation. In Oia, Greece, during the entire year, the rain falls for 65 days and collects up to 554mm (21.8") of precipitation.

Sea temperature

In Oia, the average seawater temperature in May is 18°C (64.4°F). For most, swimming in 18°C (64.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In May, the average length of the day is 14.1h.

Sunshine

The average sunshine in Oia is 10h.

UV index

In Oia, the average daily maximum UV index in May is 8. A UV Index of 8 to 10 symbolizes a very high health risk from unsafe exposure to the UV radiation for average individuals.
The average daily UV index of 8 transform into the following instructions:
Take extra precautions. Protection against sun damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.