December weather forecastRibafria, Portugal
December
Weather in December
December, the first month of the winter in Ribafria, is still a refreshing month, with an average temperature fluctuating between 10.4°C (50.7°F) and 15.4°C (59.7°F).Temperature
December reports an average high-temperature of a moderate 15.4°C (59.7°F), slightly varied from November's 17°C (62.6°F). A modest decline from daytime high temperatures is noticed in December, marking the average low at a fresh 10.4°C (50.7°F).Humidity
In December, the average relative humidity in Ribafria is 77%.Rainfall
In Ribafria, during December, the rain falls for 11.1 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, there are 118.8 rainfall days, and 406mm (15.98") of precipitation is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December in Ribafria, sunrise is at 07:36 and sunset at 17:14. On the last day of the month, sunrise is at 07:55 and sunset at 17:23 WET.
Sunshine
In December, the average sunshine is 5.8h.UV index
The months with the lowest UV index are January through April, November 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 the average person.Note: In December, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ribafria, Portugal
- Average high temperature in December: 15.4°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (14.3°C).
- Average low temperature in December: 10.4°C
The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is February (9.5°C).
Average pressure in December
Ribafria, Portugal
- Average pressure in December: 1022.5mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Ribafria, Portugal
- Average wind speed in December: 15.8km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is October (14km/h).
Average humidity in December
Ribafria, Portugal
- Average humidity in December: 77%
The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are September and October (72%).
Average rainfall in December
Ribafria, Portugal
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is November (74mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in December
Ribafria, Portugal
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is November (14.8 days).
The month with the least rainy days is August (3.1 days).
Average daylight in December /
Average sunshine in December
Ribafria, Portugal
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Ribafria, Portugal
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is July (26.5 days).
The month with the least sunshine days is November (12.8 days).
Average UV index in December
Ribafria, Portugal
- Average UV index in December: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in December
Ribafria, Portugal
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Ribafria, Portugal
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).
