Islita weather in September (Guanacaste, Costa Rica)

Curious about the September weather in Islita? Here's what the weather might have in store during this month.

In September, Islita generally has high temperatures and heavy rainfall. Throughout the day, temperatures typically settle at around 29°C. But by evening, they drop to around 24°C. Remember, these are typical temperatures, and certain days could be even hotter. Ensure you wear appropriate clothing to handle the warmth.

Islita in September falls under the rainy season with heavy rainfall, averaging around 407 mm for the month. Rain is expected on roughly 23 days.

The area experiences a moderate amount of sunshine, with approximately 159 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Islita. January, February and March typically offer the most agreeable circumstances. On the other hand, May, June, July, August, September and October tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Islita climate page with graphs.

 

Islita, monthly averages in September

Min Temperature 24°C  

Max Temperature 29°C  

Chance of Rain 76%  

Precipitation 407 mm  

Rainy days 23 days  

Sunshine 159 hours *  

Percentage Sunshine *  

* Data from: Puntarenas, Costa Rica (63 KM, 39 Miles).

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.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Islita 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.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Islita.

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.