San Juan weather in January (North Puerto Rico, Puerto Rico)
This month is known as a warm month.
The average maximum daytime temperature in San Juan in January lies at 27.9°C (82.22°F).
Usually it is the coldest month of the year.
The average minimum temperature goes down to around 20.6°C (69.08°F) (often the minimum temperature is noted at night).
January is part of the rainy season with an average precipitation of 182mm (7.2 inches). There are generally around 18 rainy days. If you enjoy blue skies and sunshine, then this is a great time to go to San Juan with 238 hours of sun during the entire month.
San Juan, monthly averages in January
Where to stay in San Juan
Where to go in Puerto Rico in JanuaryFind out more about the weather in Puerto Rico in January and which places have the best weather conditions in this month.
What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in January.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in San Juan.
Our site offers climate and forecast data for almost all countries in the world. Are you going to Puerto Rico? On this website you can find historical weather averages for many cities in Puerto Rico. Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.