Rethimno
Greece
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Rethimno, Greece

Dusk in the Venetian Rethimno harbor in Greece, with calm waters and heavily cloudy skies
Dusk in the Venetian Rethimno harbor in Greece, with calm waters and heavily cloudy skies
The first month of the winter, December, is also an enjoyable month in Rethimno, Greece, with average temperature fluctuating between 10°C (50°F) and 16°C (60.8°F).

Temperature

In Rethimno, the average high-temperature slightly decreases, from an agreeable 20°C (68°F) in November, to an enjoyable 16°C (60.8°F). In December, in Rethimno, Greece, the average low-temperature is 10°C (50°F).

Rainfall

In Rethimno, during 13 rainfall days, 100mm (3.9") of precipitation is typically accumulated. In Rethimno, during the entire year, the rain falls for 67 days and collects up to 664mm (26.1") of precipitation.

Sea temperature

In Rethimno, Greece, in December, the average water temperature is 18.3°C (64.9°F). For most, swimming in 18.3°C (64.9°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

The month with the shortest days in Rethimno is December, with an average of 9.8h of daylight.

Sunshine

January and December, with an average of 4h of sunshine, are months with the least sunshine.

UV index

Months with the lowest UV index in Rethimno are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. 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.

What is the temperature in December in Rethimno?

In Rethimno, Greece, in December, the average high-temperature is 16°C (60.8°F), and the average low-temperature is 10°C (50°F).

How much does it rain in Rethimno in December?

In December, in Rethimno, Greece, the rain falls for 13 days. Throughout December, 100mm (3.9") of precipitation is accumulated.

What is the sea temperature in December in Rethimno?

In Rethimno, in December, the average water temperature is 18.3°C (64.9°F). For most, swimming in 18.3°C (64.9°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).

What is the month with the shortest days in Rethimno?

With an average of 9.8h of daylight, December has the shortest days of the year in Rethimno, Greece.

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

In December, the average length of the day in Rethimno is 9.8h.

What is the month with the least sunshine in Rethimno?

January and December, with an average of 4h of sunshine, are months with the least sunshine in Rethimno, Greece.

How many hours of sunshine does Rethimno have in December?

In Rethimno, the average sunshine in December is 4h.

When is the lowest UV index in Rethimno?

Months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the UV index reading in December in Rethimno?

The average daily maximum UV index in December in Rethimno is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Rethimno, Greece
  • Average high temperature in December: 16°C

The warmest month (with the highest average high temperature) is July (30°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in December: 10°C

Months with the highest average low temperature are July and August (21°C).
Coldest months (with the lowest average low temperature) are January and February (8°C).

Average rainfall in December - Rethimno, Greece
  • Average rainfall in December: 100mm

The wettest month (with the highest rainfall) is January (142mm).
Driest months (with the lowest rainfall) are July and August (1mm).

Average rainfall days in December - Rethimno, Greece
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is December (13 days).
Months with the lowest number of rainy days are July and August (0 days).

Average sea temperature in December - Rethimno, Greece
  • Average sea temperature in December: 18.3°C

The best month for swimming (with the highest average sea temperature) is August (25.9°C).
The coldest month (with the lowest average sea temperature) is February (16.1°C).

Average daylight in December / Average sunshine in December - Rethimno, Greece
  • Average daylight in December: 9.8h

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 December: 4h

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

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

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).