Heraklion
Greece
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Heraklion, Greece

The Venetian walls and the Castle of Koule in the shipyards at Heraklion, Greece
The Venetian walls and the Castle of Koule in the shipyards at Heraklion, Greece
June, the first month of the summer, in Heraklion, is also a moderately hot month, with temperature in the range of an average low of 20°C (68°F) and an average high of 27.3°C (81.1°F).

Temperature

In Heraklion, the average high-temperature in June slightly increases, from 23.5°C (74.3°F) in May, to a still moderately hot 27.3°C (81.1°F). In Heraklion, the average low-temperature is 20°C (68°F).

Rainfall

In Heraklion, in June, it is raining for 0.5 days, with typically 3.2mm (0.13") of accumulated precipitation. Throughout the year, there are 53.2 rainfall days, and 500.6mm (19.71") of precipitation is accumulated.

Sea temperature

In June, the average sea temperature is 22.9°C (73.2°F).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22.9°C (73.2°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

June has the longest days of the year, with an average of 14.5h of daylight.

Sunshine

The average sunshine in June is 11.7h.

UV index

In June, the average daily maximum UV index is 10. A UV Index estimate of 8 to 10 represents a very high threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 10 transform into the following instructions:
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. Protect yourself by liberally applying a sunscreen of at least 30 SPF. Sunscreen prevents sunburn and decreases the damaging effects of Sun's radiation on the immune system. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in June in Heraklion?

In June, in Heraklion, the average high-temperature is 27.3°C (81.1°F), and the average low-temperature is 20°C (68°F).

How much does it rain in Heraklion in June?

In Heraklion, Greece, in June, during 0.5 rainfall days, 3.2mm (0.13") of precipitation is typically accumulated.

What is the water temperature in June in Heraklion?

In June, the average sea temperature in Heraklion is 22.9°C (73.2°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.9°C (73.2°F).

When are the longest days in Heraklion?

With an average of 14.5h of daylight, June has the longest days of the year in Heraklion.

How many hours of daylight does Heraklion have in June?

In June, the average length of the day is 14.5h.

How many hours of sunshine does Heraklion have in June?

The average sunshine in June in Heraklion is 11.7h.

What is the UV index intensity in June in Heraklion?

The average daily maximum UV index in June is 10. A UV Index of 8 to 10 symbolizes a very high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in June - Heraklion, Greece
  • Average high temperature in June: 27.3°C

The warmest month (with the highest average high temperature) is July (28.6°C).
The month with the lowest average high temperature is January (15.2°C).

  • Average low temperature in June: 20°C

Months with the highest average low temperature are July and August (22.7°C).
Coldest months (with the lowest average low temperature) are January and February (10°C).

Average rainfall in June - Heraklion, Greece
  • Average rainfall in June: 3.2mm

The wettest month (with the highest rainfall) is January (91.5mm).
The driest month (with the lowest rainfall) is August (0.7mm).

Average rainfall days in June - Heraklion, Greece
  • Average rainfall days in June: 0.5 days

The month with the highest number of rainy days is January (10.1 days).
Months with the lowest number of rainy days are July and August (0.1 days).

Average sea temperature in June - Heraklion, Greece
  • Average sea temperature in June: 22.9°C

The best month for swimming (with the highest average sea temperature) is August (26.1°C).
The coldest month (with the lowest average sea temperature) is February (16.4°C).

Average daylight in June / Average sunshine in June - Heraklion, Greece
  • Average daylight in June: 14.5h

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 June: 11.7h

The month with most sunshine is July (Average sunshine: 12h).
The month with least sunshine is January (Average sunshine: 3.8h).

Average UV index in June - Heraklion, Greece
  • Average UV index in June: 10

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