San Juan Weather & Climate: Best Time to Visit
The best time to visit Juan is in the months January, February and March, these months are the most dry. Regarding average temperature there is not a big difference between summer and winter.
Because of it's high temperatures with a lot of precepation the humidity can be pretty high,but because of the nice sea breeze you won't experience it as too hot.
Monthly Temperature in San Juan
The temperature in San Juan remains steady throughout the year, providing a consistently very warm climate. Average maximum daytime temperatures range from a very warm 31°C (88°F) in August, the warmest time of the year, to a comfortable 28°C (82°F) during cooler months like February.
At night, you can expect temperatures ranging from 25°C (77°F) in August to around 22°C (72°F) during February.Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Juan
San Juan has a relatively rainy climate with high precipitation levels, averaging 1192 mm (47 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, September it receives high rainfall, averaging 159 mm (6.3 in) of precipitation, recorded across 18 rainy days. In contrast, the driest month February brings less rainfall, with 47 mm (1.9 in) over 15 rainy days. For more details, please visit our San Juan Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in San Juan
While the amount of sunshine in San Juan varies throughout the year, all seasons offer their own charm. Enjoy up to 9.5 hours of daily sun in March, and experience slightly darker atmosphere in November, with about 6.8 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in San Juan
The mean water temperature over the year ranges from 26°C (79°F) in January to 29°C (84°F) in August.
Water temperature over the year
Humidity in San Juan by Month
The relative humidity is high throughout the year in San Juan.
The city experiences its highest humidity in October, reaching 77%. In March, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in San Juan
The mean wind speed over the year ranges from 2 m/s (4 knots) in October to 4 m/s (8 knots) in July. What does this mean?
The mean monthly wind speed over the year (meters per second)
San Juan 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit San Juan
San Juan has warm weather with temperatures ranging from 28°C (82°F) to 31°C (88°F) throughout the year. The best time to visit is during January, February and March, when rainfall is at its lowest, making it a great time for sightseeing and exploring all the place has to offer.For a more comfortable experience, start your day early when the weather is cooler, or take advantage of the gentle breezes in the late afternoon. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
