December weather forecastGrammatiko, Greece
December
Weather in December
The first month of the winter, December, is still a mild month in Grammatiko, Greece, with an average temperature fluctuating between 13.7°C (56.7°F) and 9.2°C (48.6°F).Temperature
The average high-temperature slightly decreases in December, shifting from a refreshing 17.7°C (63.9°F) in November to a mild 13.7°C (56.7°F). December nights register a minor temperature decline, steadying at a frosty 9.2°C (48.6°F).Humidity
In Grammatiko, Greece, the average relative humidity in December is 73%.Rainfall
The months with the most rainfall in Grammatiko are January and December, with an average 49mm (1.93") of precipitation.Snowfall
March through December are months without snowfall.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 07:22 and sunset at 17:04. On the last day of the month, sunrise is at 07:40 and sunset at 17:14 EET.
Sunshine
In December, the average sunshine is 5.7h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index in Grammatiko. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grammatiko, Greece
- Average high temperature in December: 13.7°C
The warmest months (with the highest average high temperature) are July and August (30.3°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in December: 9.2°C
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is January (7.5°C).
Average pressure in December
Grammatiko, Greece
- Average pressure in December: 1018.2mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011mbar).
Average wind speed in December
Grammatiko, Greece
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is August (17.1km/h).
The calmest month (with the lowest average wind speed) is May (11.8km/h).
Average humidity in December
Grammatiko, Greece
- Average humidity in December: 73%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Grammatiko, Greece
- Average rainfall in December: 49mm
The wettest months (with the highest rainfall) are January and December (49mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in December
Grammatiko, Greece
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is December (12.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in December
Grammatiko, Greece
- Average snowfall in December: 0mm
The month with the highest snowfall is January (33mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Grammatiko, Greece
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Grammatiko, Greece
- Average daylight in December: 9h and 36min
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 36min).
- Average sunshine in December: 5h and 42min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Grammatiko, Greece
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is January (15.9 days).
Average UV index in December
Grammatiko, Greece
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Grammatiko, Greece
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Grammatiko, 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).





