December weather forecastNikiana, Greece
December
Weather in December
December, the first month of the winter in Nikiana, is still a mild month, with an average temperature fluctuating between 14.5°C (58.1°F) and 11.5°C (52.7°F).Temperature
The average high-temperature slightly decreases in December, shifting from a refreshing 18.3°C (64.9°F) in November to a mild 14.5°C (58.1°F). Registering an almost steady temperature, Nikiana's nights in December see an average low of 11.5°C (52.7°F).Humidity
In December, the average relative humidity in Nikiana is 68%.Rainfall
In Nikiana, Greece, in December, it is raining for 7.8 days, with typically 18mm (0.71") of accumulated precipitation. In Nikiana, during the entire year, the rain falls for 65.9 days and collects up to 145mm (5.71") of precipitation.Sea temperature
In Nikiana, in December, the average water temperature is 17°C (62.6°F).Note: Swimming becomes less enjoyable for most at a surface water temperature of 17°C (62.6°F). As the temperature decreases below 21°C (69.8°F), breathing becomes increasingly difficult.
Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Nikiana.On the first day of December in Nikiana, sunrise is at 07:36 and sunset at 17:15. On the last day of the month, sunrise is at 07:55 and sunset at 17:25 EET.
Sunshine
In December, the average sunshine is 6.2h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Nikiana, Greece
- Average high temperature in December: 14.5°C
The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (12.7°C).
- Average low temperature in December: 11.5°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (9.7°C).
Average pressure in December
Nikiana, Greece
- Average pressure in December: 1018.4mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1012.1mbar).
Average wind speed in December
Nikiana, Greece
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Nikiana, Greece
- Average humidity in December: 68%
The months with the highest relative humidity are March and April (71%).
The month with the lowest relative humidity is August (63%).
Average rainfall in December
Nikiana, Greece
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is November (35mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in December
Nikiana, Greece
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is January (8.7 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in December
Nikiana, Greece
- Average sea temperature in December: 17°C
The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest months (with the lowest average sea temperature) are February and March (15°C).
Average daylight in December /
Average sunshine in December
Nikiana, Greece
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in December
Nikiana, Greece
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is August (29.1 days).
The month with the least sunshine days is February (18.9 days).
Average UV index in December
Nikiana, Greece
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Nikiana, Greece
- Average cloud cover in December: 33
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in December
Nikiana, 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).





