Ostional weather in September (Guanacaste, Costa Rica)
Planning a trip to Ostional in September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In September, Ostional generally has high temperatures and heavy rainfall. Throughout the day, temperatures typically settle at around 29°C. But by evening, they drop to around 25°C.
Ostional in September falls under the rainy season with heavy rainfall, averaging around 417 mm for the month. Based on our climate data of the past 30 years, about 23 days of rain are anticipated.
If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Ostional. January, February and March typically offer the most optimal weather. In contrast, May, June, July, August, September and October tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Ostional climate page with graphs.
Ostional, monthly averages in September
Where to go in Costa Rica in September
Find out more about the weather in Costa Rica in September and which places have the best weather conditions in this month.
So, what should you wear in Ostional in September?
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 in September.
Interested in more climate information?
This site provides you with all the information you need about the climate in Ostional.
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 climate conditions. Find out where to go with our weather planner.