December weather forecastPetras, Greece
December
Weather in December
The first month of the winter, December, is still a mild month in Petras, Greece, with temperature in the range of an average low of 13.3°C (55.9°F) and an average high of 15.9°C (60.6°F).Temperature
With the beginning of December, the average high-temperature shows a small decrease, transitioning from a comfortable 19.3°C (66.7°F) in November to a mild 15.9°C (60.6°F). December nights cool to an average low-temperature of 13.3°C (55.9°F), a marginal decrease from its daytime equivalent.Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 72%.Rainfall
In Petras, in December, during 10.4 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, there are 64.8 rainfall days, and 119mm (4.69") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 07:05 and sunset at 17:03. On the last day of December, sunrise is at 07:23 and sunset at 17:13 EET.
Sunshine
In December, the average sunshine is 6.5h.UV index
The months with the lowest UV index in Petras are January through March and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the UV index of 4 transforms into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. When the Sun is at its strongest around midday, find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Petras, Greece
- Average high temperature in December: 15.9°C
The warmest month (with the highest average high temperature) is August (28.1°C).
The month with the lowest average high temperature is January (14.2°C).
- Average low temperature in December: 13.3°C
The month with the highest average low temperature is August (23.7°C).
The coldest month (with the lowest average low temperature) is January (11.5°C).
Average pressure in December
Petras, Greece
- Average pressure in December: 1017.9mbar
The month with the highest atmospheric pressure is December (1017.9mbar).
The month with the lowest atmospheric pressure is July (1009mbar).
Average wind speed in December
Petras, Greece
- Average wind speed in December: 18.8km/h
The windiest month (with the highest average wind speed) is January (20.6km/h).
The calmest month (with the lowest average wind speed) is May (12.6km/h).
Average humidity in December
Petras, Greece
- Average humidity in December: 72%
The months with the highest relative humidity are January, February and December (72%).
The month with the lowest relative humidity is July (65%).
Average rainfall in December
Petras, Greece
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is January (25mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days in December
Petras, Greece
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is December (10.4 days).
The month with the least rainy days is August (0.4 days).
Average daylight in December /
Average sunshine in December
Petras, Greece
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 30min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in December
Petras, Greece
- Average sunshine days in December: 16.5 days
The months with the most sunshine days are July and August (30.3 days).
The month with the least sunshine days is January (15.9 days).
Average UV index in December
Petras, Greece
- Average UV index in December: 4
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 4).
Average cloud cover in December
Petras, Greece
- Average cloud cover in December: 29
The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 2).
Average visibility in December
Petras, 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).
