Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The advent of December observes an average high-temperature of a still warm 25.5°C (77.9°F), nearly identical to November's 27°C (80.6°F). In December, Alcatraz's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 23°C (73.4°F).Humidity
In Alcatraz, the average relative humidity in December is 70%.Rainfall
In Alcatraz, in December, during 1.4 rainfall days, 3mm (0.12") of precipitation is typically accumulated. Throughout the year, in Alcatraz, there are 54.1 rainfall days, and 149mm (5.87") of precipitation is accumulated.Daylight
The month with the shortest days in Alcatraz is December, with an average of 11h and 12min of daylight.On the first day of December, sunrise is at 06:42 and sunset at 18:00. On the last day of the month, sunrise is at 06:58 and sunset at 18:12 -01.
Sunshine
In Alcatraz, the average sunshine in December is 9.4h.UV index
January through July and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are the temperatures in Alcatraz in December?
What is the average humidity in December in Alcatraz?
How many days does it rain in December in Alcatraz?
What is the month with the shortest days in Alcatraz?
What is the average length of the day in December in Alcatraz?
When is the sunrise / sunset in December in Alcatraz?
How long on average sun shines in December in Alcatraz?
When is the lowest UV index in Alcatraz?
How high is the UV index in December in Alcatraz?
Average temperature in December
Alcatraz, Cape Verde
- Average high temperature in December: 25.5°C
The warmest month (with the highest average high temperature) is October (28.4°C).
The months with the lowest average high temperature are February and March (23.7°C).
- Average low temperature in December: 23°C
The months with the highest average low temperature are September and October (25.8°C).
The coldest month (with the lowest average low temperature) is February (20.9°C).
Average pressure in December
Alcatraz, Cape Verde
- Average pressure in December: 1014.4mbar
The month with the highest atmospheric pressure is January (1015.2mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).
Average wind speed in December
Alcatraz, Cape Verde
- Average wind speed in December: 23.2km/h
The windiest month (with the highest average wind speed) is February (25.8km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).
Average humidity in December
Alcatraz, Cape Verde
- Average humidity in December: 70%
The months with the highest relative humidity are June, July, August and September (79%).
The month with the lowest relative humidity is January (69%).
Average rainfall in December
Alcatraz, Cape Verde
- Average rainfall in December: 3mm
The wettest month (with the highest rainfall) is September (50mm).
The driest months (with the least rainfall) are January, March and May (1mm).
Average rainfall days in December
Alcatraz, Cape Verde
- Average rainfall days in December: 1.4 days
The month with the highest number of rainy days is September (13.1 days).
The month with the least rainy days is January (0.7 days).
Average daylight in December /
Average sunshine in December
Alcatraz, Cape Verde
- Average daylight in December: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in December: 9h and 2min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 0min).
Average sunshine days in December
Alcatraz, Cape Verde
- Average sunshine days in December: 28.5 days
The months with the most sunshine days are January and May (29.3 days).
The month with the least sunshine days is September (13.1 days).
Average UV index in December
Alcatraz, Cape Verde
- Average UV index in December: 6
The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July and December (UV index 6).
Average cloud cover in December
Alcatraz, Cape Verde
- Average cloud cover in December: 20
The month with the most cloud cover is August (Cloud cover 52).
The month with the least cloud cover is May (Cloud cover 13).
Average visibility in December
Alcatraz, Cape Verde
- 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).
Alcatraz, Cape Verde
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