San Juan weather in December 2024

Expect 82°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in San Juan in December. Check more long-term weather averages for San Juan in December before you book your next holiday to Puerto Rico in 2024/2025.

82
82°F max day temperature
7
7 hours of sunshine per day
21
21 days with some rainfall
70
70°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
5.9
5.9 inches of monthly rainfall
8
8 (Very High) UV index
81
81°F sea temperature

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The December weather guide for Puerto Rico (San Juan) 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.

Metric (°C) | Imperial (°F)

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How hot is it in San Juan in December?

Daytime temperatures usually reach 82°F in San Juan in December with moderate heat and humidity, falling to 70°F at night.

How sunny is it in San Juan in December?

There are normally 7 hours of bright sunshine each day in San Juan in December - that's 63% of daylight hours.

How warm is the sea around San Juan in December?

The average sea temperature around San Juan in December is 81°F.

Does it rain in San Juan in December?

There are usually 21 days with some rain in San Juan in December and the average monthly rainfall is 5.9 inches.

San Juan December sunrise & sunset times

Browse the sunrise and sunset times for San Juan in December 2024. Select a month to view San Juan sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st December 2024	06:41	17:47
Monday, 16th December 2024	06:50	17:51
Tuesday, 31st December 2024	06:56	17:59

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Puerto Rico - quick facts
Flight time^✝	12 to 13 hours
Time difference	UK -4 hours
Language(s)	Spanish, English
Currency	United States Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Beaches Nature Nightlife
Tourist info	Discover Puerto Rico