Cartago weather in September (Cartago, Costa Rica)

What kind of weather does September bring to Cartago? Check out our in-depth weather guide for this month.

Temperatures

The typical weather for September in Cartago includes high temperatures and heavy rainfall. The temperature during the day can rise to approximately 23°C. At night, it falls to around 15°C.

Precipitation

Cartago in September falls under the rainy season with heavy rainfall, averaging around 441 mm for the month. Climate data suggests that about 24 days will experience rainfall.

Average sunshine

The area enjoys a moderate level of sunlight, with around 149 hours. It's a good balance between sunny and cloudy days.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Cartago. January, February and March typically offer the most optimal weather. In contrast, May, June, July, August, September, October and November tend to have less optimal conditions.

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

 

Cartago, monthly averages in September

Min Temperature 15°C  

Max Temperature 23°C  

Chance of Rain 81%  

Precipitation 441 mm  

Rainy days 24 days  

Humidity 85% *  

Sunshine 149 hours *  

Percentage Sunshine *  

* Data from: San José, Costa Rica (18 KM, 11 Miles).

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.

Weather conditions Weather

Temperatures

Precipitation

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 this month?

For visitors traveling to Cartago, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Camping

6/10

Interested in more climate information?

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

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.