December weather forecastErmioni, Greece
December
Weather in December
December, the first month of the winter in Ermioni, is also a moderate month, with an average temperature fluctuating between 10.4°C (50.7°F) and 14.4°C (57.9°F).Temperature
The commencement of December indicates a gentle shift in the average high-temperature, receding from November's enjoyable 18.3°C (64.9°F) to a mild 14.4°C (57.9°F). Ermioni registers an average low-temperature of 10.4°C (50.7°F) throughout December, a modest decrease from its daytime highs.Humidity
In Ermioni, the average relative humidity in December is 70%.Rainfall
The month with the most rainfall is December, when the rain falls for 10.5 days and typically aggregates up to 36mm (1.42") of precipitation.Snowfall
Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 0.8 snowfall days, and 7mm (0.28") of snow is accumulated.Sea temperature
In Ermioni, the average seawater temperature in December is 17.3°C (63.1°F).Note: In water of 17.3°C (63.1°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:22 and sunset at 17:09. On the last day of the month, sunrise is at 07:41 and sunset at 17:19 EET.
Sunshine
In December, the average sunshine is 6.2h.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ermioni, Greece
- Average high temperature in December: 14.4°C
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (12.6°C).
- Average low temperature in December: 10.4°C
The month with the highest average low temperature is August (24.2°C).
The coldest month (with the lowest average low temperature) is January (8.6°C).
Average pressure in December
Ermioni, 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 (1011.3mbar).
Average wind speed in December
Ermioni, Greece
- Average wind speed in December: 13.8km/h
The windiest month (with the highest average wind speed) is January (14.6km/h).
The calmest month (with the lowest average wind speed) is May (11.1km/h).
Average humidity in December
Ermioni, Greece
- Average humidity in December: 70%
The months with the highest relative humidity are January and February (72%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Ermioni, Greece
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is December (36mm).
The driest months (with the least rainfall) are July and August (6mm).
Average rainfall days in December
Ermioni, Greece
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is January (10.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in December
Ermioni, Greece
- Average snowfall in December: 1mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Ermioni, Greece
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Ermioni, Greece
- Average sea temperature in December: 17.3°C
The best month for swimming (with the highest average sea temperature) is August (26.5°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).
Average daylight in December /
Average sunshine in December
Ermioni, 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 12min
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: 6h and 6min).
Average sunshine days in December
Ermioni, Greece
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is January (16.5 days).
Average UV index in December
Ermioni, Greece
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Ermioni, Greece
- Average cloud cover in December: 32
The months with the most cloud cover are January and February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in December
Ermioni, 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).
