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

October 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
October, the same as September, is a moderately hot autumn month in Heraklion, Greece, with average temperature ranging between min 17.5°C (63.5°F) and max 23.1°C (73.6°F).

Temperature

In Heraklion, the average high-temperature slightly decreases, from a warm 26.4°C (79.5°F) in September, to a still moderately hot 23.1°C (73.6°F). The average low-temperature, in Heraklion, is 17.5°C (63.5°F).

Rainfall

In Heraklion, during October, the rain falls for 4.9 days and regularly aggregates up to 68.8mm (2.7") of precipitation. Throughout the year, there are 53.2 rainfall days, and 500.6mm (19.7") of precipitation is accumulated.

Sea temperature

In Heraklion, the average water temperature is 23.3°C (73.9°F).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.3°C (73.9°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

The average length of the day in Heraklion is 11.3h.

Sunshine

In October, the average sunshine is 6.4h.

UV index

In Heraklion, the average daily maximum UV index in October is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for average individuals.
Note: In October, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in October in Heraklion?

The average high-temperature, in October, in Heraklion, is 23.1°C (73.6°F), while the average low-temperature is 17.5°C (63.5°F).

How much does it rain in Heraklion in October?

In Heraklion, in October, during 4.9 rainfall days, 68.8mm (2.7") of precipitation is typically accumulated.

How warm is the water in October in Heraklion?

In Heraklion, Greece, in October, the average water temperature is 23.3°C (73.9°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 23.3°C (73.9°F).

What is the average length of the day in October in Heraklion?

In October, the average length of the day in Heraklion is 11.3h.

How many hours of sunshine does Heraklion have in October?

In Heraklion, the average sunshine in October is 6.4h.

What is the UV index reading in October in Heraklion?

In October, the average daily maximum UV index in Heraklion, Greece, is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in October - Heraklion, Greece
  • Average high temperature in October: 23.1°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 October: 17.5°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 October - Heraklion, Greece
  • Average rainfall in October: 68.8mm

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 October - Heraklion, Greece
  • Average rainfall days in October: 4.9 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 October - Heraklion, Greece
  • Average sea temperature in October: 23.3°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 October / Average sunshine in October - Heraklion, Greece
  • Average daylight in October: 11.3h

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 October: 6.4h

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 October - Heraklion, Greece
  • Average UV index in October: 5

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