December weather forecast
Poros, Greece

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Weather in December

December, the first month of the winter in Poros, is still a mild month, with temperature in the range of an average low of 10.4°C (50.7°F) and an average high of 14.4°C (57.9°F).

Temperature

The start of December signals a gentle decrease in the average high-temperature, transitioning from an enjoyable 18.3°C (64.9°F) in November to a mild 14.4°C (57.9°F). Throughout December, a modest shift from daytime highs is anticipated, with an average low-temperature of 10.4°C (50.7°F).

Humidity

In Poros, Greece, the average relative humidity in December is 70%.

Rainfall

The month with the most rainfall in Poros is December, when the rain falls for 10.5 days and typically aggregates up to 36mm (1.42") of precipitation.

Snowfall

January, February and December are months with snowfall in Poros. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Poros, there are 0.8 snowfall days, and 7mm (0.28") of snow is accumulated.

Sea temperature

In December, the average sea temperature is 17.3°C (63.1°F).
Note: The majority of individuals find it unpleasurable to swim in 17.3°C (63.1°F). It becomes progressively harder to manage one's breathing as the water temperature falls below 21°C (69.8°F).

Daylight

December has the shortest days of the year in Poros, Greece, with an average of 9h and 36min of daylight.
On the first day of December in Poros, Greece, sunrise is at 07:22 and sunset at 17:08. On the last day of the month, sunrise is at 07:40 and sunset at 17:18 EET.

Sunshine

In December, the average sunshine is 6.2h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 3 during December leads to these advisories:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What is the usual temperature for Poros in December?

During December, Poros experiences an average high-temperature of 14.4°C (57.9°F) and a low-temperature of 10.4°C (50.7°F). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is computed to be 32°C (89.6°F).

What is the average humidity in December in Poros?

In Poros, Greece, the average relative humidity in December is 70%.

What is the wettest month in Poros?

December is the month with the most rainfall in Poros, Greece. Rain falls for 10.5 days and accumulates 36mm (1.42") of precipitation.

How many days does it rain in December in Poros?

In Poros, in December, it is raining for 10.5 days, with typically 36mm (1.42") of accumulated precipitation.

When does it start to snow in Poros?

December is the first month it typically snows in Poros, Greece. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.

What is the sea temperature in December in Poros?

In Poros, Greece, in December, the average water temperature is 17.3°C (63.1°F). For most, swimming in 17.3°C (63.1°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 Poros?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Poros, Greece.

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

In December, the average day length is 9h and 38min.

What time are sunrise and sunset in December in Poros?

In December, on the first day of the month, sunrise is at 07:22 and sunset at 17:08. On the last day of the month, in Poros, Greece, sunrise is at 07:40 and sunset at 17:18 EET.

How long on average sun shines in December in Poros?

In Poros, the average sunshine duration in December is 6.2h.

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

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Poros?

In Poros, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
Poros, Greece

Average temperature in December - Poros, Greece
  • Average high temperature in December: 14.4°C

The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (12.6°C).

  • Average low temperature in December: 10.4°C

The month with the highest average low temperature is August (24.2°C).
The coldest month (with the lowest average low temperature) is January (8.6°C).

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Average pressure in December
Poros, Greece

Average pressure in December - Poros, Greece
  • Average pressure in December: 1018.2mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.3mbar).

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Average wind speed in December
Poros, Greece

Average wind speed in December - Poros, Greece
  • Average wind speed in December: 13.8km/h

The windiest month (with the highest average wind speed) is January (14.6km/h).
The calmest month (with the lowest average wind speed) is May (11.1km/h).

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Average humidity in December
Poros, Greece

Average humidity in December - Poros, Greece
  • Average humidity in December: 70%

The months with the highest relative humidity are January and February (72%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in December
Poros, Greece

Average rainfall in December - Poros, Greece
  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is December (36mm).
The driest months (with the least rainfall) are July and August (6mm).

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Average rainfall days in December
Poros, Greece

Average rainfall days in December - Poros, Greece
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is January (10.8 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in December
Poros, Greece

Average snowfall in December - Poros, Greece
  • Average snowfall in December: 1mm

The month with the highest snowfall is January (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in December
Poros, Greece

Average snowfall days in December - Poros, Greece
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in December
Poros, Greece

Average sea temperature in December - Poros, Greece
  • Average sea temperature in December: 17.3°C

The best month for swimming (with the highest average sea temperature) is August (26.5°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).

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

Average daylight in December / Average sunshine in December - Poros, Greece
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 6h and 1min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

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Average sunshine days in December
Poros, Greece

Average sunshine days in December - Poros, Greece
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is July (27 days).
The month with the least sunshine days is January (16.5 days).

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Average UV index in December
Poros, Greece

Average UV index in December - Poros, Greece
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in December
Poros, Greece

Average cloud cover in December - Poros, Greece
  • Average cloud cover in December: 32

The months with the most cloud cover are January and February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in December
Poros, Greece

Average visibility in December - Poros, Greece
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Poros, Greece

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