San Sebastian weather in September (Puerto Rico)
Can you expect sunny skies in San Sebastian in September? Here’s a detailed forecast of the month’s weather patterns.
Temperatures
In September, San Sebastian tends to experience very high temperatures and high rainfall. During the day, temperatures usually reach up to 31°C. At night, they tend to fall to approximately 25°C. With these average temperatures, expect occasional spikes in warmth. Wear light fabrics and stay cool by hydrating regularly.
Precipitation
San Sebastian in September usually receives high rainfall, averaging around 158 mm for the month. Expect the heaviest rain of the year this month, often arriving in intense bursts. A poncho is essential for keeping dry. Climate data suggests that about 17 days will experience rainfall.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit San Sebastian. January, February, March, April and December typically offer the most optimal weather. In contrast, May, June, August, September and October tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized San Sebastian climate page with graphs.
San Sebastian, monthly averages in September
Min Temperature
25°C
Max Temperature
31°C
Chance of Rain
57%
Precipitation
158 mm
Rainy days
17 days
Where to go in Puerto Rico in September
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in San Sebastian.
Our site offers climate and forecast data for every country 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 recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
