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 sea temperature 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
During December, Fajardo observes a subtle ascent to a still warm 80.2°F (26.8°C) from November's 82.2°F (27.9°C) in the average high-temperature. A slight dip in temperature to a still warm 77.2°F (25.1°C) marks the average nights in Fajardo during December.Humidity
In December, the average relative humidity in Fajardo, Puerto Rico, is 77%.Rainfall
In Fajardo, in December, it is raining for 18.1 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, there are 216 rainfall days, and 21.5" (546mm) of precipitation is accumulated.Ocean temperature
In Fajardo, the average seawater temperature in December is 81.9°F (27.7°C).Note: Swimming, diving, and other water endeavors at temperatures between 77°F (25°C) and 84.2°F (29°C) are considered enjoyable and satisfying for extended periods without discomfort.
Daylight
The month with the shortest days in Fajardo, Puerto Rico, is December, with an average of 11h and 6min of daylight.On the first day of December in Fajardo, sunrise is at 6:38 am and sunset at 5:45 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 5:57 pm AST.
Sunshine
The month with the least sunshine is December, with an average of 6.4h of sunshine.UV index
The months with the highest UV index in Fajardo are January, March through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 7 during December translates into the following directions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take note! Sand and water reflections strengthen the Sun's UV exposure.
Frequently asked questions
What is the average December temperature in Fajardo?
What is the average humidity in December in Fajardo?
How much does it rain in Fajardo in December?
What is the ocean temperature in December in Fajardo?
What is the month with the shortest days in Fajardo?
What is the average length of the day in December in Fajardo?
When are sunrise and sunset in December in Fajardo?
What is the month with the least sunshine in Fajardo?
How many hours of sunshine does Fajardo have in December?
What are the months with the highest UV index in Fajardo?
What is the UV index intensity in December in Fajardo?
Average temperature in December
Fajardo, PR
- Average high temperature in December: 80.2°F
The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is March (79°F).
- Average low temperature in December: 77.2°F
The months with the highest average low temperature are September and October (80.8°F).
The coldest months (with the lowest average low temperature) are February and March (75.7°F).
Average pressure in December
Fajardo, PR
- Average pressure in December: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed in December
Fajardo, PR
- Average wind speed in December: 11.6mph
The windiest month (with the highest average wind speed) is July (12mph).
The calmest month (with the lowest average wind speed) is October (8.6mph).
Average humidity in December
Fajardo, PR
- Average humidity in December: 77%
The months with the highest relative humidity are May, June, July and August (79%).
The months with the lowest relative humidity are February and March (76%).
Average rainfall in December
Fajardo, PR
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in December
Fajardo, PR
- Average rainfall days in December: 18.1 days
The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is February (13.8 days).
Average sea temperature in December
Fajardo, PR
- Average sea temperature in December: 81.7°F
The best month for swimming (with the highest average sea temperature) is September (85°F).
The coldest month (with the lowest average sea temperature) is February (78.7°F).
Average daylight in December /
Average sunshine in December
Fajardo, PR
- Average daylight in December: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Fajardo, PR
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is March (10 days).
The month with the least sunshine days is November (4.9 days).
Average UV index in December
Fajardo, PR
- Average UV index in December: 7
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is February (UV index 6).
Average cloud cover in December
Fajardo, PR
- Average cloud cover in December: 39
The months with the most cloud cover are May and July (Cloud cover 40).
The months with the least cloud cover are February, September and October (Cloud cover 33).
Average visibility in December
Fajardo, PR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Fajardo, Puerto Rico, USA
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