May weather forecast and climate
Hersonissos, Greece

Clear blue sea waters to the horizon in Hersonissos in Greece
Clear blue sea waters to the horizon in Hersonissos in Greece
May, the last month of the spring, in Hersonissos, is a pleasant month, with temperature in the range of an average high of 21°C (69.8°F) and an average low of 13°C (55.4°F).

Temperature

The average high-temperature, in May, is 21°C (69.8°F), while the average low-temperature is 13°C (55.4°F).

Rainfall

In May, the rain falls for 4 days. Throughout May, 22mm (0.9") of precipitation is accumulated. Throughout the year, in Hersonissos, there are 74 rainfall days, and 818mm (32.2") of precipitation is accumulated.

Sea temperature

In Hersonissos, the average water temperature is 19°C (66.2°F). For most, swimming in 19°C (66.2°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 Hersonissos, the average length of the day in May is 14h.

Sunshine

In May, the average sunshine is 10h.

UV index

The average daily maximum UV index in May is 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
The average daily UV index of 9 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. 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.

What is the temperature in May in Hersonissos?

The average high-temperature, in May, is 21°C (69.8°F), while the average low-temperature is 13°C (55.4°F).

How much does it rain in Hersonissos in May?

In Hersonissos, Greece, during May, the rain falls for 4 days and regularly aggregates up to 22mm (0.9") of precipitation.

What is the sea temperature in May in Hersonissos?

In May, the average sea temperature in Hersonissos, Greece, is 19°C (66.2°F). Swimming in 19°C (66.2°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

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

In May, the average length of the day in Hersonissos, Greece, is 14h.

How long on average sun shines in May in Hersonissos?

In May, the average sunshine in Hersonissos, Greece, is 10h.

What is the UV index intensity in May in Hersonissos?

In Hersonissos, Greece, the average daily maximum UV index in May is 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in May - Hersonissos, Greece
  • Average high temperature in May: 21°C

Warmest months (with the highest average high temperature) are July and August (27°C).
Months with the lowest average high temperature are January and February (13°C).

  • Average low temperature in May: 13°C

Months with the highest average low temperature are July and August (20°C).
Coldest months (with the lowest average low temperature) are January and February (7°C).

Average rainfall in May - Hersonissos, Greece
  • Average rainfall in May: 22mm

The wettest month (with the highest rainfall) is January (169mm).
The driest month (with the lowest rainfall) is August (2mm).

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

The month with the highest number of rainy days is December (13 days).
Months with the lowest number of rainy days are July, August and September (1 days).

Average sea temperature in May - Hersonissos, Greece
  • Average sea temperature in May: 19°C

The best month for swimming (with the highest average sea temperature) is August (25°C).
Coldest months (with the lowest average sea temperature) are February and March (15°C).

Average daylight in May / Average sunshine in May - Hersonissos, Greece
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in May: 10h

Months with most sunshine are June and July (Average sunshine: 12h).
Months with least sunshine are January and December (Average sunshine: 4).

Average UV index in May - Hersonissos, Greece
  • Average UV index in May: 9

The month with the highest UV index is July (UV index 11).
The month with the lowest UV index is December (UV index 2).

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