December weather forecast
Heraklion, Greece

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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

Weather in December

December marks the end of the year in Heraklion with a definite winter feel, characterized by shorter days, lower temperatures, and rainfall. Compared to November, rainy days increase to 8.9 days with a total rainfall of 77mm. Despite the more frequent showers, the city retains its charm, offering various indoor and outdoor experiences. The diminishing daylight and sunshine hours are counterbalanced by the festive spirit that pervades the city. Sea temperatures noticeably drop, pushing beach activities off the agenda until the arrival of warmer months again.

Temperature

The advent of December in Heraklion brings a subtle shift in temperature, with the average high moving from an agreeable 20.1°C in November to a comfortable 17°C. Heraklion in December experiences a minor decline in temperature, with an average low of 12°C at night.

Rainfall

In December, the rain falls for 8.9 days. Throughout December, 77mm of precipitation is accumulated. In Heraklion, during the entire year, the rain falls for 53.2 days and collects up to 501mm of precipitation.

Sea temperature

In Heraklion, in December, the average water temperature is 18.4°C.
Note: For swimming, a surface water temperature of 18.4°C 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.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 07:09 and sunset at 17:07. On the last day of December, sunrise is at 07:27 and sunset at 17:16 EET.

Sunshine

In Heraklion, the average sunshine in December is 3.9h.

UV index

December is the month with the lowest UV index in Heraklion, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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FAQ

What is the usual temperature for Heraklion in December?

Heraklion in December has an average high-temperature of 17°C and an average low-temperature of 12°C.

How many days does it rain in December in Heraklion?

In Heraklion, in December, it is raining for 8.9 days, with typically 77mm of accumulated precipitation.

What is the sea temperature in December in Heraklion?

In December, the average sea temperature in Heraklion is 18.4°C. For swimming, a surface water temperature of 18.4°C 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.

What is the month with the shortest days in Heraklion?

With an average of 9h and 48min of daylight, December has the shortest days of the year in Heraklion, Greece.

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

In December, the average day length in Heraklion is 9h and 49min.

What time are sunrise and sunset in December in Heraklion?

On the first day of December in Heraklion, sunrise is at 07:09 and sunset at 17:07. On the last day of the month, sunrise is at 07:27 and sunset at 17:16 EET.

How many hours of sunshine does Heraklion have in December?

The average sunshine duration in December in Heraklion, Greece, is 3.9h.

What is the month with the lowest UV index in Heraklion?

December is the month with the lowest UV index in Heraklion, with an average maximum UV index of 2.

What is the UV index reading in December in Heraklion?

In Heraklion, Greece, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index

Average temperature in December
Heraklion, Greece

Average temperature in December - Heraklion, Greece
  • Average high temperature in December: 17°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 December: 12°C

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

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Average rainfall in December
Heraklion, Greece

Average rainfall in December - Heraklion, Greece
  • Average rainfall in December: 77.1mm

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

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Average rainfall days in December
Heraklion, Greece

Average rainfall days in December - Heraklion, Greece
  • Average rainfall days in December: 8.9 days

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

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Average sea temperature in December
Heraklion, Greece

Average sea temperature in December - Heraklion, Greece
  • Average sea temperature in December: 18.4°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).

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Average daylight in December /
Average sunshine in December
Heraklion, Greece

Average daylight in December / Average sunshine in December - Heraklion, Greece
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average UV index in December
Heraklion, Greece

Average UV index in December - Heraklion, Greece
  • Average UV index in December: 2

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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Heraklion, Greece

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