December weather forecastAgios Ioannis, Greece
December
Weather in December
December, the first month of the winter in Agios Ioannis, is still a mild month, with an average temperature fluctuating between 13.5°C (56.3°F) and 15.5°C (59.9°F).Temperature
With December's arrival, Agios Ioannis's weather records an average high-temperature of a still refreshing 15.5°C (59.9°F), marking little difference from November's 18.4°C (65.1°F). In Agios Ioannis, nights during December observe an average temperature decrease to a still mild 13.5°C (56.3°F).Humidity
January and December, with an average relative humidity of 71%, are the least humid months.Rainfall
In Agios Ioannis, in December, it is raining for 13.9 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, in Agios Ioannis, there are 93 rainfall days, and 255mm (10.04") of precipitation is accumulated.Sea temperature
In Agios Ioannis, the average seawater temperature in December is 17°C (62.6°F).Note: Swimming in 17°C (62.6°F) does not offer a pleasant experience for most individuals. The act of controlling one's breathing becomes progressively difficult as the water temperature goes under 21°C (69.8°F).
Daylight
December has the shortest days of the year in Agios Ioannis, with an average of 9h and 36min of daylight.On the first day of December in Agios Ioannis, sunrise is at 07:14 and sunset at 17:01. On the last day of the month, sunrise is at 07:32 and sunset at 17:10 EET.
Sunshine
In December, the average sunshine is 6h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 3 in December translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Agios Ioannis, 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
Agios Ioannis, 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
Agios Ioannis, 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
Agios Ioannis, 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
Agios Ioannis, 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
Agios Ioannis, 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 sea temperature in December
Agios Ioannis, Greece
- Average sea temperature in December: 17°C
The best months for swimming (with the highest average sea temperature) are July, August and September (23°C).
The coldest months (with the lowest average sea temperature) are February and March (15°C).
Average daylight in December /
Average sunshine in December
Agios Ioannis, 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
Agios Ioannis, 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
Agios Ioannis, 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
Agios Ioannis, 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
Agios Ioannis, 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).
