San Juan Weather in January
Puerto Rico · 30-year monthly averages
👍 Good time to visit
January in San Juan is warm, with average daytime highs around 29°C (83°F) and nighttime lows near 22°C (72°F). Expect roughly 103mm of precipitation spread over about 13 rainy days, with a moderate amount of rain.
Avg high
29°C
83°F
Avg low
22°C
72°F
Rainfall
103mm
moderate
Rainy days
13
days with ≥1mm
🎒 What to pack
- light summer clothing
- sunscreen and sunglasses
January vs the rest of the year
FAQ
- How hot is San Juan in January?
- January in San Juan is warm, with average daytime highs around 29°C (83°F) and nighttime lows near 22°C (72°F). Expect roughly 103mm of precipitation spread over about 13 rainy days, with a moderate amount of rain.
- Does it rain a lot in San Juan in January?
- San Juan sees around 103mm of precipitation in January on average — moderate by global standards.
- Is January a good time to visit San Juan?
- January is a good month to visit San Juan, with generally agreeable conditions.