December weather forecastSerpente, Portugal
December
Weather in December
The first month of the winter, December, is still a refreshing month in Serpente, Portugal, with an average temperature varying between 8.8°C (47.8°F) and 13.6°C (56.5°F).Temperature
December brings a marginal elevation to a still mild 13.6°C (56.5°F) from November's 15.3°C (59.5°F) in Serpente's average high-temperatures. A modest dip in temperatures to an average of 8.8°C (47.8°F) is observed throughout Serpente's December nights.Humidity
The average relative humidity in December is 79%.Rainfall
In Serpente, in December, it is raining for 13.8 days, with typically 113mm (4.45") of accumulated precipitation. Throughout the year, in Serpente, there are 137 rainfall days, and 815mm (32.09") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 07:40 and sunset at 17:06. On the last day of December, sunrise is at 07:59 and sunset at 17:15 WET.
Sunshine
The average sunshine in December is 5.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 3 suggests these recommendations:
Take precautions - Protection against sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Serpente, Portugal
- Average high temperature in December: 13.6°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (12.8°C).
- Average low temperature in December: 8.8°C
The months with the highest average low temperature are July and August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7.6°C).
Average pressure in December
Serpente, 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 (1015.3mbar).
Average wind speed in December
Serpente, Portugal
- Average wind speed in December: 11.9km/h
The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is September (9.6km/h).
Average humidity in December
Serpente, Portugal
- Average humidity in December: 79%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (68%).
Average rainfall in December
Serpente, Portugal
- Average rainfall in December: 113mm
The wettest month (with the highest rainfall) is November (126mm).
The driest month (with the least rainfall) is July (9mm).
Average rainfall days in December
Serpente, Portugal
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is November (16.1 days).
The month with the least rainy days is August (4.7 days).
Average daylight in December /
Average sunshine in December
Serpente, Portugal
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Serpente, Portugal
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is November (11.9 days).
Average UV index in December
Serpente, Portugal
- Average UV index in December: 3
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Serpente, Portugal
- Average cloud cover in December: 41
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 18).
Average visibility in December
Serpente, Portugal
- Average visibility in December: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).





