Weather in December
Temperature
December commences with an average high-temperature of a mild 15°C (59°F), showing little deviation from November's 17°C (62.6°F). Graciosa indicates a consistently low-temperature of 11°C (51.8°F) during the nights of December.Rainfall
In Graciosa, during December, the rain falls for 18 days and regularly aggregates up to 124mm (4.88") of precipitation. Throughout the year, there are 184 rainfall days, and 1114mm (43.86") of precipitation is accumulated.Sea temperature
In December, the average sea temperature in Graciosa is 17°C (62.6°F).Note: Most people do not enjoy swimming in water that is 17°C (62.6°F). Breathing becomes increasingly challenging as the water temperature dips under 21°C (69.8°F).
Daylight
December has the shortest days of the year in Graciosa, Portugal, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 07:52 and sunset at 17:30. On the last day of the month, sunrise is at 08:10 and sunset at 17:39 -01.
Sunshine
January, February, November and December, with an average of 3h of sunshine, are months with the least sunshine in Graciosa.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the average December temperature in Graciosa?
How many days does it rain in December in Graciosa?
How cold is the water in December in Graciosa?
What is the month with the shortest days in Graciosa?
How many hours of daylight does Graciosa have in December?
When is the sunrise / sunset in December in Graciosa?
What are the months with the least sunshine in Graciosa?
How many hours of sunshine does Graciosa have in December?
When is the lowest UV index in Graciosa?
How high is the UV index in December in Graciosa?
Average temperature in December
Graciosa, Portugal
- Average high temperature in December: 15°C
The warmest month (with the highest average high temperature) is August (23°C).
The months with the lowest average high temperature are January and February (14°C).
- Average low temperature in December: 11°C
The month with the highest average low temperature is August (17°C).
The coldest months (with the lowest average low temperature) are January, February, March and April (10°C).
Average rainfall in December
Graciosa, Portugal
- Average rainfall in December: 124mm
The wettest month (with the highest rainfall) is January (139mm).
The driest month (with the least rainfall) is July (43mm).
Average rainfall days in December
Graciosa, Portugal
- Average rainfall days in December: 18 days
The month with the highest number of rainy days is January (20 days).
The months with the least rainy days are June and July (11 days).
Average sea temperature in December
Graciosa, 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
Graciosa, Portugal
- Average daylight in December: 9h and 3min
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: 3h
The month with the most sunshine is August (Average sunshine: 8h).
The months with the least sunshine are January, February, November and December (Average sunshine: 3h).
Average UV index in December
Graciosa, Portugal
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 9).
The months with the lowest UV index are January and December (UV index 2).
Graciosa, Portugal
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