Weather in San Juan in January
San Juan, Puerto Rico averages a high of 28°C (82.4°F) and low of 21.6°C (70.9°F) in January, with 10 rain days and 10.8 hours of daily sunshine. Travel score: 79.3/100 (Good). The best time to visit San Juan is March.
High
28°C82°F
Low
22°C71°F
🌧️
10
rain days
☀️
10.8
hrs/day sunshine
💧
79%
humidity
79— Good
January in San Juan is hot and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in San Juan?
How much does it rain in San Juan in January?
San Juan receives an average of 43mm of rainfall across 10 rainy days in January. The annual total is 912.5mm.
What should I pack for San Juan 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
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
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What is the weather like in other months in San Juan?
Data based on 1994–2024 averages · Last updated: 2024-12-31