Posidi
Greece
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Posidi, Greece

December, the first month of the winter, in Posidi, is also a fresh month, with average temperature varying between 11°C (51.8°F) and 4°C (39.2°F).

Temperature

In December, the average high-temperature drops, from an enjoyable 16°C (60.8°F) in November, to a fresh 11°C (51.8°F). The average low-temperature, in Posidi, is 4°C (39.2°F).

Rainfall

December is the month with the most rainfall. Rain falls for 9 days and accumulates 77mm (3") of precipitation.

Sea temperature

In Posidi, the average seawater temperature in December is 15°C (59°F). Swimming in 15°C (59°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 Posidi, Greece, is December, with an average of 9.4h of daylight.

Sunshine

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

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for the average person.
The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Posidi?

The average high-temperature, in December, is 11°C (51.8°F), while the average low-temperature is 4°C (39.2°F).

How much does it rain in Posidi in December?

In Posidi, Greece, during December, the rain falls for 9 days and regularly aggregates up to 77mm (3") of precipitation.

What is the wettest month in Posidi?

The month with the most rainfall is December when the rain falls for 9 days and typically aggregates up to 77mm (3") of precipitation.

What is the sea water temperature in December in Posidi?

In December, the average sea temperature in Posidi is 15°C (59°F). Swimming in 15°C (59°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the month with the shortest days in Posidi?

With an average of 9.4h of daylight, December has the shortest days of the year in Posidi, Greece.

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

In Posidi, Greece, the average length of the day in December is 9.4h.

What is the month with the least sunshine in Posidi?

Months with the least sunshine in Posidi are January, February, November and December, with an average of 4h of sunshine.

How many hours of sunshine does Posidi have in December?

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

What are the months with the lowest UV index in Posidi?

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

How high is the UV index in December in Posidi?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV radiation.
Average temperature in December - Posidi, Greece
  • Average high temperature in December: 11°C

Warmest months (with the highest average high temperature) are July and August (30°C).
The month with the lowest average high temperature is January (9°C).

  • Average low temperature in December: 4°C

Months with the highest average low temperature are July and August (18°C).
The coldest month (with the lowest average low temperature) is January (2°C).

Average rainfall in December - Posidi, Greece
  • Average rainfall in December: 77mm

The wettest month (with the highest rainfall) is December (77mm).
The driest month (with the lowest rainfall) is July (24mm).

Average rainfall days in December - Posidi, Greece
  • Average rainfall days in December: 9 days

Months with the highest number of rainy days are January, November and December (9 days).
Months with the lowest number of rainy days are July, August and September (4 days).

Average sea temperature in December - Posidi, Greece
  • Average sea temperature in December: 15°C

Best months for swimming (with the highest average sea temperature) are July and August (24°C).
Coldest months (with the lowest average sea temperature) are January, February and March (14°C).

Average daylight in December / Average sunshine in December - Posidi, Greece
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 4h

The month with most sunshine is July (Average sunshine: 12h).
Months with least sunshine are January, February, November and December (Average sunshine: 4).

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

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).