December weather forecast and climate
Rethimno, Greece

Dusk in the Venetian Rethimno harbor in Greece
Dusk in the Venetian Rethimno harbor in Greece
December, the first month of the winter, in Rethimno, is still a comfortable month, with average temperature ranging between max 16°C (60.8°F) and min 10°C (50°F).

Temperature

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

Rainfall

In December, in Rethimno, Greece, the rain falls for 13 days. Throughout December, 100mm (3.94") of precipitation is accumulated. In Rethimno, during the entire year, the rain falls for 67 days and collects up to 664mm (26.14") of precipitation.

Sea temperature

In December, the average sea temperature in Rethimno is 18.3°C (64.9°F).
Note: Swimming in 18.3°C (64.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

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

Sunshine

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

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Rethimno. A UV Index value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in December transform 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. 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 Rethimno, in December, during 13 rainfall days, 100mm (3.94") of precipitation is typically accumulated.

What is the sea water temperature in December in Rethimno?

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

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

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

In December, the average length of the day 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.

How long on average sun shines in December in Rethimno?

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

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

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

How high is the UV index in December in Rethimno?

The average daily maximum UV index in December in Rethimno is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to the 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).
The 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).
The driest months (with the least 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 least 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 the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 4h

Months with the most sunshine are June, July and August (Average sunshine: 12h).
Months with the 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).