Weather in Guaynabo in January
Guaynabo, Puerto Rico averages a high of 27.7°C (81.9°F) and low of 20.9°C (69.6°F) in January, with 14 rain days and 10.8 hours of daily sunshine. Travel score: 76.3/100 (Good). The best time to visit Guaynabo is February.
High
28°C82°F
Low
21°C70°F
🌧️
14
rain days
☀️
10.8
hrs/day sunshine
💧
80%
humidity
76— Good
January in Guaynabo is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Guaynabo?
How much does it rain in Guaynabo in January?
Guaynabo receives an average of 50.4mm of rainfall across 14 rainy days in January. The annual total is 1206mm.
What should I pack for Guaynabo in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Puerto Rico in January?
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