San Juan weather in December 2019

  • 28°C maximum daytime temperature in December in San Juan28
    28°C max day temperature
  • 7 hours of sunshine per day
  • 21 days with some rainfall in December in San Juan21
    21 days with some rainfall
  • 21°C minimum night-time temperature in December in San Juan21
    21°C min night temperature
  • 11 hours of daylight per day in December in San Juan11
    11 hours of daylight per day
  • Moderate heat & humidity in December in San JuanM
    Moderate heat & humidity
  • 151 mm monthly rainfall in December in San Juan151
    151 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in December in San Juan8
    8 (Very High) UV index
  • 27°C sea temperature in December in San Juan27
    27°C sea temperature
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The December weather guide for San Juan, Puerto Rico shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

San Juan sunrise & sunset times for December 2019

Browse the sunrise & sunset times for San Juan in December 2019. Select a month to view San Juan sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Sunday, 1st December 2019 06:40 17:47
Monday, 16th December 2019 06:49 17:51
Tuesday, 31st December 2019 06:56 17:59
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Where's hot in Puerto Rico in December?

Below are average maximum temperatures at popular destinations in Puerto Rico in December. Select a destination to see more weather parameters.

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