Weather in Guaynabo in December
Guaynabo, Puerto Rico averages a high of 27.9°C (82.2°F) and low of 21.6°C (70.9°F) in December, with 16 rain days and 10.6 hours of daily sunshine. Travel score: 73.3/100 (Good). The best time to visit Guaynabo is February.
High
28°C82°F
Low
22°C71°F
🌧️
16
rain days
☀️
10.6
hrs/day sunshine
💧
82%
humidity
73— Good
December in Guaynabo is warm and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Guaynabo?
How much does it rain in Guaynabo in December?
Guaynabo receives an average of 61.9mm of rainfall across 16 rainy days in December. The annual total is 1206mm.
What should I pack for Guaynabo in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧥
Waterproof jacket
Frequent rain expected (16 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Puerto Rico in December?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31