December weather forecastPoseidonia, Greece
December
Weather in December
The first month of the winter, December, is also a moderate month in Poseidonia, Greece, with an average temperature varying between 13.5°C (56.3°F) and 15.5°C (59.9°F).Temperature
The transition from November to December sees an average high-temperature of a still refreshing 15.5°C (59.9°F), indicating a minor variance from the prior month. Poseidonia encounters a small divergence from daytime high temperatures, averaging a low-temperature of 13.5°C (56.3°F) during December nights.Humidity
The months with the lowest humidity are January and December, with an average relative humidity of 71%.Rainfall
In Poseidonia, during December, the rain falls for 13.9 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, there are 93 rainfall days, and 255mm (10.04") of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December in Poseidonia, Greece, sunrise is at 07:16 and sunset at 17:02. On the last day of the month, sunrise is at 07:34 and sunset at 17:12 EET.
Sunshine
The average sunshine in December is 6h.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Adopt protective measures - It is advised to guard against sun damage. To guard against the harmful effects of the Sun, minimize exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Poseidonia, Greece
- Average high temperature in December: 15.5°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (13.8°C).
- Average low temperature in December: 13.5°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (11.9°C).
Average pressure in December
Poseidonia, Greece
- Average pressure in December: 1017.8mbar
The month with the highest atmospheric pressure is December (1017.8mbar).
The month with the lowest atmospheric pressure is July (1009.2mbar).
Average wind speed in December
Poseidonia, Greece
- Average wind speed in December: 28.9km/h
The windiest month (with the highest average wind speed) is January (30km/h).
The calmest month (with the lowest average wind speed) is May (18.8km/h).
Average humidity in December
Poseidonia, Greece
- Average humidity in December: 71%
The month with the highest relative humidity is August (76%).
The months with the lowest relative humidity are January and December (71%).
Average rainfall in December
Poseidonia, Greece
- Average rainfall in December: 41mm
The wettest month (with the highest rainfall) is January (53mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in December
Poseidonia, Greece
- Average rainfall days in December: 13.9 days
The month with the highest number of rainy days is January (14.9 days).
The month with the least rainy days is August (0.8 days).
Average daylight in December /
Average sunshine in December
Poseidonia, Greece
- Average daylight in December: 9h and 36min
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 0min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in December
Poseidonia, Greece
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is January (12.4 days).
Average UV index in December
Poseidonia, Greece
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Poseidonia, Greece
- Average cloud cover in December: 38
The month with the most cloud cover is January (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 3).
Average visibility in December
Poseidonia, 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).
