Weather in December
Temperature
The arrival of December corresponds with a temperature reduction, down from November's enjoyable 16°C (60.8°F) to a cool 11°C (51.8°F). During the nights in December, an average low-temperature of 4°C (39.2°F) is observed.Rainfall
The month with the most rainfall in Posidi is December, when the rain falls for 9 days and typically aggregates up to 77mm (3.03") of precipitation.Sea temperature
In December, the average sea temperature in Posidi is 15°C (59°F).Note: Most people do not enjoy swimming in water of 15°C (59°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the shortest days of the year in Posidi, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 07:29 and sunset at 17:01. On the last day of December, sunrise is at 07:48 and sunset at 17:11 EET.
Sunshine
January, February, November and December, with an average of 4h of sunshine, are months with the least sunshine.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the average December temperature in Posidi?
What is the rainiest month in Posidi?
How many days does it rain in December in Posidi?
How cold is the water in December in Posidi?
What is the month with the shortest days in Posidi?
What is the average length of the day in December in Posidi?
When are sunrise and sunset in December in Posidi?
What is the month with the least sunshine in Posidi?
How long on average sun shines in December in Posidi?
When is the lowest UV index in Posidi?
What is the UV index intensity in December in Posidi?
Average temperature in December
Posidi, Greece
- Average high temperature in December: 11°C
The 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
The 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 least rainfall) is July (24mm).
Average rainfall days in December
Posidi, Greece
- Average rainfall days in December: 9 days
The months with the highest number of rainy days are January, November and December (9 days).
The months with the least rainy days are July, August and September (4 days).
Average sea temperature in December
Posidi, Greece
- Average sea temperature in December: 15°C
The best months for swimming (with the highest average sea temperature) are July and August (24°C).
The 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: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h
The month with the most sunshine is July (Average sunshine: 12h).
The months with the least sunshine are January, February, November and December (Average sunshine: 4h).
Average UV index in December
Posidi, Greece
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 9).
The months with the lowest UV index are January, November and December (UV index 2).
Posidi, Greece
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