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 (3.03"). 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

With the onset of December, Heraklion experiences a modest temperature adjustment, with the average high-temperature gently receding from a pleasant 20.1°C (68.2°F) in November to an enjoyable 17°C (62.6°F). In Heraklion, December's low temperatures hover around a fresh 12°C (53.6°F), reflecting a minor decrease from the daytime highs.

Rainfall

In Heraklion, in December, during 8.9 rainfall days, 77mm (3.03") of precipitation is typically accumulated. Throughout the year, there are 53.2 rainfall days, and 501mm (19.72") of precipitation is accumulated.

Sea temperature

In Heraklion, the average seawater temperature in December is 18.4°C (65.1°F).
Note: Swimming in 18.4°C (65.1°F) does not offer a pleasant experience for most individuals. The act of controlling one's breathing becomes progressively difficult as the water temperature goes under 21°C (69.8°F).

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 07:10 and sunset at 17:07. On the last day of December, sunrise is at 07:28 and sunset at 17:17 EET.

Sunshine

In December, the average sunshine 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What is the usual temperature for Heraklion in December?

The high-temperature, in December, in Heraklion, is 17°C (62.6°F), while the low-temperature averages to 12°C (53.6°F).

How much does it rain in Heraklion in December?

In December, in Heraklion, Greece, the rain falls for 8.9 days. Throughout December, 77mm (3.03") of precipitation is accumulated.

What is the sea water temperature in December in Heraklion?

In Heraklion, in December, the average water temperature is 18.4°C (65.1°F). For swimming, a surface water temperature of 18.4°C (65.1°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 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.

How many hours of daylight does Heraklion have in December?

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

When is the sunrise / sunset in December in Heraklion?

On the first day of December in Heraklion, Greece, sunrise is at 07:10 and sunset at 17:07. On the last day of the month, sunrise is at 07:28 and sunset at 17:17 EET.

How long on average sun shines in December in Heraklion?

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

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

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

What is the UV index reading in December in Heraklion?

The average daily maximum UV index in December in Heraklion is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average rainfall days
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).

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).

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).

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).

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).

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).

Heraklion, Greece

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