December weather forecast
Corvo Island, Portugal

Grazing cows in Corvo Island fields, Portugal
Grazing cows in Corvo Island fields, Portugal

December

Weather in December

The first month of the winter, December, is still a mild month in Corvo Island, Portugal, with temperature in the range of an average low of 10°C (50°F) and an average high of 14°C (57.2°F).

Temperature

The arrival of December brings an average high-temperature of a moderate 14°C (57.2°F), nearly identical to November's 16°C (60.8°F). Corvo Island experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 10°C (50°F) throughout December.

Rainfall

The month with the most rainfall is December, when the rain falls for 19 days and typically aggregates up to 140mm (5.51") of precipitation.

Sea temperature

In Corvo Island, the average seawater temperature in December is 17°C (62.6°F).
Note: Most people do not enjoy swimming in water of 17°C (62.6°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:06 and sunset at 17:40. On the last day of December, in Corvo Island, sunrise is at 08:25 and sunset at 17:50 -01.

Sunshine

The months with the least sunshine are January, February, November and December, with an average of 3h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 2 in December leads to these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

What is the average December temperature?
In December, in Corvo Island, the average high-temperature is 14°C (57.2°F), and the average low-temperature is 10°C (50°F).
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 19 days and accumulates 140mm (5.51") of precipitation.
How many days does it rain in December?
In Corvo Island, in December, it is raining for 19 days, with typically 140mm (5.51") of accumulated precipitation.
How cold is the water in December?
In Corvo Island, in December, the average water temperature is 17°C (62.6°F). Swimming in 17°C (62.6°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
How many hours of daylight does Corvo Island have in December?
In December, the average day length is 9h and 25min.
When is the sunrise / sunset in December?
In December, on the first day of the month, sunrise is at 08:06 and sunset at 17:40. On the last day of the month, in Corvo Island, sunrise is at 08:25 and sunset at 17:50 -01.
What is the month with the least sunshine?
The months with the least sunshine are January, February, November and December, with an average of 3h of sunshine.
How many hours of sunshine does Corvo Island have in December?
In December, the average sunshine duration is 3h.
When is the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
What is the UV index reading in December?
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index
Average temperature in December
Corvo Island, Portugal
  • Average high temperature in December: 14°C

The warmest month (with the highest average high temperature) is August (22°C).
The months with the lowest average high temperature are January, February and March (13°C).

  • Average low temperature in December: 10°C

The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (8°C).

Average rainfall in December
Corvo Island, Portugal
  • Average rainfall in December: 140mm

The wettest month (with the highest rainfall) is December (140mm).
The driest month (with the least rainfall) is July (55mm).

Average rainfall days in December
Corvo Island, Portugal
  • Average rainfall days in December: 19 days

The month with the highest number of rainy days is January (20 days).
The months with the least rainy days are June, July and August (12 days).

Average sea temperature in December
Corvo Island, Portugal
  • Average sea temperature in December: 17°C

The best months for swimming (with the highest average sea temperature) are August and September (23°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (16°C).

Average daylight in December /
Average sunshine in December
Corvo Island, Portugal
  • Average daylight in December: 9h and 2min

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 24min).

  • Average sunshine in December: 3h

The months with the most sunshine are July and August (Average sunshine: 7h).
The months with the least sunshine are January, February, November and December (Average sunshine: 3h).

Average UV index in December
Corvo Island, Portugal
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 9).
The months with the lowest UV index are January and December (UV index 2).

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