San Sebastian Weather & Climate: Best Time to Visit
The climate in San Sebastian, Puerto Rico, is remarkably consistent, with temperatures year-round averaging 30°C (86°F). The warmest month is July at 32°C (90°F), and the coolest is February at 29°C (84°F).
With around 1086 mm (43 in) of annual rainfall, San Sebastian has a notably wet climate. However, this rainfall is not evenly distributed — the city has a distinct dry season from December to February. The wettest month is September.
Monthly Temperature in San Sebastian
In San Sebastian temperatures are generally consistent throughout the year. Average daytime temperatures reach a very warm 32°C (90°F) in July. In February, the coolest month of the year, temperatures drop to a comfortable 29°C (84°F).
At night, temperatures range from around 25°C (77°F) in July to 22°C (72°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Sebastian
San Sebastian experiences significant rainfall throughout the year, averaging 1086 mm (43 in) of precipitation annually. San Sebastian can be quite wet during September, receiving approximately 158 mm (6.2 in) of precipitation over 17 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 34 mm (1.3 in) of precipitation spread across 19 rainy days days. For more details, please visit our San Sebastian Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
San Sebastian 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit San Sebastian
The warm weather in San Sebastian maintains temperatures between 29°C (84°F) and 32°C (90°F) year-round. Plan your visit during January, February and December for drier days and the best conditions to enjoy being outside.To make the most of your visit, consider exploring early in the morning or during the pleasant late afternoon hours when the temperature is most comfortable. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
