December weather forecastRiolos, Greece
December
Weather in December
The first month of the winter, December, is still a mild month in Riolos, Greece, with an average temperature fluctuating between 8.4°C (47.1°F) and 14.3°C (57.7°F).Temperature
With the beginning of December, the average high-temperature shows a small decrease, transitioning from a comfortable 18.8°C (65.8°F) in November to a still refreshing 14.3°C (57.7°F). In Riolos, an average low-temperature of 8.4°C (47.1°F) is recorded during December nights.Humidity
The average relative humidity in December is 74%.Rainfall
In December, the rain falls for 14.6 days. Throughout December, 76mm (2.99") of precipitation is accumulated. In Riolos, during the entire year, the rain falls for 124.8 days and collects up to 569mm (22.4") of precipitation.Snowfall
In Riolos, Greece, snow does not fall in February through December.Daylight
The month with the shortest days in Riolos is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 07:31 and sunset at 17:14. On the last day of December, in Riolos, sunrise is at 07:50 and sunset at 17:24 EET.
Sunshine
The average sunshine in December is 6.3h.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 3 in December transforms into the following instructions:
Undertake protective steps - Preventing sun damage is advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Riolos, Greece
- Average high temperature in December: 14.3°C
The warmest month (with the highest average high temperature) is August (32.3°C).
The month with the lowest average high temperature is January (12.4°C).
- Average low temperature in December: 8.4°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is January (6.9°C).
Average pressure in December
Riolos, 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 (1011.9mbar).
Average wind speed in December
Riolos, Greece
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is February (12km/h).
The calmest months (with the lowest average wind speed) are June and September (8.6km/h).
Average humidity in December
Riolos, Greece
- Average humidity in December: 74%
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is August (54%).
Average rainfall in December
Riolos, Greece
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is January (106mm).
The driest month (with the least rainfall) is August (2mm).
Average rainfall days in December
Riolos, Greece
- Average rainfall days in December: 14.6 days
The month with the highest number of rainy days is January (16.3 days).
The month with the least rainy days is August (2.1 days).
Average snowfall in December
Riolos, Greece
- Average snowfall in December: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Riolos, Greece
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Riolos, 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: 6h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in December
Riolos, Greece
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in December
Riolos, Greece
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Riolos, Greece
- Average cloud cover in December: 32
The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in December
Riolos, 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).
