⚠️December is a challenging time to visit San Juan — expect warm days around 83°F (lows near 73°F), heavy rainfall, abundant sunshine.
December Climate
Why This Matches
Based on your December search preferences
Avg highs of 83°F
17 rain days expected
10.1 hours of sunshine per day
78% average humidity
Year-Round Climate
Temperature
Sunshine
Rainfall
Best Time to Visit San Juan
San Juan is a strong year-round destination, but January–August edges ahead, with highs around 84°F, 11+ hours of daily sunshine.
Weather Risks
Frequent rainfall year-round
Avg 19 rain days/month — pack layers and an umbrella
Hurricane season
June – November
What to Pack
Based on December conditions in San Juan
Light layers — t-shirts with a light jacket for evenings
Rain jacket and waterproof bag are essential — expect frequent showers
High SPF sunscreen, sunglasses, and a hat — strong sun expected
Swimwear and water shoes — the beaches are calling
Insect repellent — mosquitoes are active in humid conditions
December in San Juan
Flight prices unavailable for this route
Nightly hotel rates
Budget
$60–$108
Mid-Range
$144–$240
Luxury
$336–$600
About San Juan
Colonial cobblestone streets meet Caribbean beaches. Old San Juan's colorful architecture and rich history blend with modern food scenes, craft cocktail bars, and easy access to bioluminescent bays and El Yunque rainforest.
