ClimateForecastSeptemberOctober >>

Nuevo Arenal weather in September (Guanacaste, Costa Rica)

Planning a trip to Nuevo Arenal in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In September, Nuevo Arenal generally has high temperatures and heavy rainfall. Throughout the daytime, temperatures often hover around 29°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 22°C. Keep in mind, these temperatures are averages, and some days might be even warmer. Dress suitably to manage the heat.

Nuevo Arenal in September falls under the rainy season with heavy rainfall, averaging around 303 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 24 days of the month will see rainfall.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Nuevo Arenal. January and February generally stand out with the best circumstances. While May, June, September and October tend to showcase less optimal conditions.

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

 

Nuevo Arenal, monthly averages in September

Min TemperatureMin Temperature 22°C  
Max TemperatureMax Temperature 29°C  
Chance of RainChance of Rain 78%  
PrecipitationPrecipitation 303 mm  
Rainy daysRainy days 24 days  
HumidityHumidity 88% *  
* Data from: Los Chiles, Costa Rica (57 KM, 35 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.

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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 Nuevo Arenal 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.

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 Nuevo Arenal.

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.