Ios
Greece
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Ios, Greece

The last month of the spring, May, is an agreeable month in Ios, Greece, with average temperature ranging between min 15°C (59°F) and max 22°C (71.6°F).

Temperature

In Ios, the average high-temperature marginally rises, from an enjoyable 18°C (64.4°F) in April, to a pleasant 22°C (71.6°F). In May, the average low-temperature is 15°C (59°F).

Rainfall

In Ios, in May, it is raining for 4 days, with typically 15mm (0.6") of accumulated precipitation. In Ios, during the entire year, the rain falls for 70 days and collects up to 503mm (19.8") of precipitation.

Sea temperature

In May, the average sea temperature in Ios is 18°C (64.4°F).
Note: For swimming, a surface water temperature of 18°C (64.4°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in Ios is 14.1h.

Sunshine

The average sunshine in May is 10h.

UV index

In Ios, Greece, the average daily maximum UV index in May is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 8 in May transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. 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.

What is the temperature in May in Ios?

In May, the average high-temperature is 22°C (71.6°F), and the average low-temperature is 15°C (59°F).

How much does it rain in Ios in May?

In Ios, Greece, during May, the rain falls for 4 days and regularly aggregates up to 15mm (0.6") of precipitation.

What is the sea water temperature in May in Ios?

In Ios, in May, the average water temperature is 18°C (64.4°F). For swimming, a surface water temperature of 18°C (64.4°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the average length of the day in May in Ios?

The average length of the day in May is 14.1h.

How many hours of sunshine does Ios have in May?

In May, the average sunshine is 10h.

What is the UV index intensity in May in Ios?

The average daily maximum UV index in May in Ios, Greece, is 8. A UV Index value of 8 to 10 symbolizes a very high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in May - Ios, Greece
  • Average high temperature in May: 22°C

The warmest month (with the highest average high temperature) is July (27°C).
Months with the lowest average high temperature are January and February (13°C).

  • Average low temperature in May: 15°C

Months with the highest average low temperature are July and August (21°C).
Coldest months (with the lowest average low temperature) are January and February (8°C).

Average rainfall in May - Ios, Greece
  • Average rainfall in May: 15mm

The wettest month (with the highest rainfall) is January (99mm).
Driest months (with the lowest rainfall) are July and August (2mm).

Average rainfall days in May - Ios, Greece
  • Average rainfall days in May: 4 days

The month with the highest number of rainy days is December (12 days).
The month with the lowest number of rainy days is August (0 days).

Average sea temperature in May - Ios, Greece
  • Average sea temperature in May: 18°C

The best month for swimming (with the highest average sea temperature) is August (24°C).
Coldest months (with the lowest average sea temperature) are February and March (15°C).

Average daylight in May / Average sunshine in May - Ios, Greece
  • Average daylight in May: 14.1h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in May: 10h

The month with most sunshine is July (Average sunshine: 14h).
Months with least sunshine are January and December (Average sunshine: 4).

Average UV index in May - Ios, Greece
  • Average UV index in May: 8

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).