December weather forecastCorroios, Portugal
December
Weather in December
And finally, the year ends on a noticeable drop to average temperatures between 10.9°C (51.6°F) to 15.7°C (60.3°F). The onset of Winter reflects visible changes in Corroios, Portugal with reduced daylight hours of 9.5 hours and increased cloud coverage to 34%. Winter takes precedent over other seasons, promoting cooler temperatures and higher humidity levels. However, compared to November, rainfall sees a marginal reduction to 8mm (0.31"). December forms the narrative of an idyllic Portuguese winter, concluding the year on a comfortably cool note.Temperature
Corroios experiences an average high-temperature of a mild 15.7°C (60.3°F) in December, subtly different from November's 17.8°C (64°F). Corroios's nighttime temperature in December consistently rests at a fresh 10.9°C (51.6°F).Humidity
In Corroios, the average relative humidity in December is 75%.Rainfall
In December, in Corroios, the rain falls for 5.1 days. Throughout December, 8mm (0.31") of precipitation is accumulated. Throughout the year, there are 54.4 rainfall days, and 62mm (2.44") of precipitation is accumulated.Sea temperature
In December, the average sea temperature in Corroios is 16.6°C (61.9°F).Note: For the majority, swimming in 16.6°C (61.9°F) does not offer a pleasant experience. Below 21°C (69.8°F), the difficulty in controlling breathing escalates.
Daylight
The month with the shortest days in Corroios is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 07:35 and sunset at 17:15. On the last day of December, in Corroios, sunrise is at 07:54 and sunset at 17:25 WET.
Sunshine
In December, the average sunshine is 5.9h.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during December, leads to the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding the Sun during its peak radiation time around midday is a healthy practice. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Corroios, Portugal
- Average high temperature in December: 15.7°C
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (14.9°C).
- Average low temperature in December: 10.9°C
The month with the highest average low temperature is July (17.9°C).
The coldest month (with the lowest average low temperature) is February (9.8°C).
Average pressure in December
Corroios, Portugal
- Average pressure in December: 1022.6mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in December
Corroios, Portugal
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is September (13km/h).
Average humidity in December
Corroios, Portugal
- Average humidity in December: 75%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Corroios, Portugal
- Average rainfall in December: 8mm
The wettest month (with the highest rainfall) is November (15mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days in December
Corroios, Portugal
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is November (9.3 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in December
Corroios, Portugal
- Average sea temperature in December: 16.6°C
The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).
Average daylight in December /
Average sunshine in December
Corroios, Portugal
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Corroios, Portugal
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is November (17.7 days).
Average UV index in December
Corroios, Portugal
- Average UV index in December: 4
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in December
Corroios, Portugal
- Average cloud cover in December: 34
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Corroios, Portugal
- 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).
