San Antonio weather in September (Heredia, Costa Rica)
How is September weather typically in San Antonio? Our page offers a comprehensive look at the weather you can expect this month.
Temperatures
In September, San Antonio tends to experience high temperatures and heavy rainfall. Daytime temperatures generally peak at 25°C, but after sunset, they often decrease to around 17°C.
Precipitation
San Antonio in September falls under the rainy season with heavy rainfall, averaging around 458 mm for the month. Past climate data indicates that roughly 24 days will see rain.Average sunshine
The month experiences a moderate amount of sunlight, with 149 hours hours. A nice balance between sunshine and clouds.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit San Antonio. January, February, March and April generally stand out with the best circumstances. While May, June, July, August, September, October and November tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized San Antonio climate page with graphs.
San Antonio, monthly averages in September
Min Temperature
17°C
Max Temperature
25°C
Chance of Rain
80%
Precipitation
458 mm
Rainy days
24 days
Humidity
85% *
Sunshine
149 hours *
Percentage Sunshine
*
Where to go in Costa Rica in September
Find out more about the weather in Costa Rica 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 Antonio.
Our site offers climate and forecast data for every country in the world. Are you going to Costa Rica? On this website you can find historical weather averages for many cities in Costa Rica. 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.
