Fortuna weather in September (Alajuela, Costa Rica)

Curious about the September weather in Fortuna? This guide provides all the details you need.

In September, Fortuna generally has high temperatures and heavy rainfall. Daytime temperatures hover around 29°C, while nights can cool down to about 21°C.

Fortuna in September falls under the rainy season with heavy rainfall, averaging around 308 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 23 days of the month will see rainfall.

The area enjoys a balanced 159 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Fortuna. February and March typically offer 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 Fortuna climate page with graphs.

 

Fortuna, monthly averages in September

Min TemperatureMin Temperature 21°C  
Max TemperatureMax Temperature 29°C  
Chance of RainChance of Rain 77%  
PrecipitationPrecipitation 308 mm  
Rainy daysRainy days 23 days  
SunshineSunshine 159 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Puntarenas, Costa Rica (60 KM, 37 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.

Map not visible? Whoops sorry! Please refresh the page.
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 Fortuna 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?

Weather and Climate provides you with all the information you need about the climate in Fortuna.

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.