Monterrey weather in September (Costa Rica)

How's the weather trend in Monterrey as September approaches? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

Typically, September in Monterrey includes high temperatures and heavy rainfall. During the day, temperatures can climb to about 29°C. At night, they may fall to a cooler 21°C. Although these are average temperatures, some days can be hotter. Wear cool, breathable clothing and protect yourself from the sun.

Precipitation

Monterrey in September falls under the rainy season with heavy rainfall, averaging around 301 mm for the month. When we look at the climate data from the last 30 years, you can expect around 23 days of rain.

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

 

Monterrey, monthly averages in September

Min Temperature 21°C  

Max Temperature 29°C  

Chance of Rain 77%  

Precipitation 301 mm  

Rainy days 23 days  

Humidity 88% *  

Data from: Los Chiles, Costa Rica (53 KM, 33 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

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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 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.

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 Monterrey.

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.