December weather forecastLuquillo, PR
December
Weather in December
December in Luquillo ushers in the coolest weather of the year with noticeably reduced temperatures as compared to November. The city receives shorter daylight hours at 11 hours, the least in the year. Although the humidity and visibility remain consistent, the rainfall decreases to 1.57" (40mm). December records the highest average wind speed of 11.6mph (18.7km/h), providing a refreshing contrast to the dropping temperatures. The arrival of December brings a sense of tranquillity, as Luquillo braces for the charm of the holiday season with its characteristically pleasant weather.Temperature
Luquillo records an average high-temperature of a still warm 80.2°F (26.8°C) as December arrives, nearly mirroring the previous month's climate. Throughout December, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 77.2°F (25.1°C).Humidity
In Luquillo, the average relative humidity in December is 77%.Rainfall
In Luquillo, during December, the rain falls for 18.1 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Luquillo, during the entire year, the rain falls for 216 days and collects up to 21.5" (546mm) of precipitation.Daylight
With an average of 11h and 0min of daylight, December has the shortest days of the year.On the first day of December, 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
With an average of 6.4h of sunshine, December has the least sunshine of the year.UV index
The months with the highest UV index 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 hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 7 transforms into these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Luquillo, 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
Luquillo, 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
Luquillo, 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
Luquillo, 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
Luquillo, 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
Luquillo, 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 daylight in December /
Average sunshine in December
Luquillo, PR
- Average daylight in December: 11h and 0min
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 0min).
- Average sunshine in December: 6h and 24min
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
Luquillo, 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
Luquillo, 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
Luquillo, 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
Luquillo, 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).
