Atenas weather in December (Alajuela, Costa Rica)

Curious about the climate in Atenas this December? Thinking about a visit? Explore this page for a full overview of the weather conditions this month.

Temperatures

December in Atenas generally includes high temperatures and high rainfall. Daytime temperatures generally settle around 27°C, while nighttime can see a dip to about 19°C.

Precipitation

Atenas in December usually receives high rainfall, averaging around 100 mm for the month. Typically around 15 days days of rainfall are expected.

Average sunshine

The days are predominantly sunny, with an estimated total of around 245 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

If you prefer dry days with pleasant temperatures, January, 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 Atenas climate page with graphs.

 

Atenas, monthly averages in December

Min Temperature 19°C  

Max Temperature 27°C  

Chance of Rain 48%  

Precipitation 100 mm  

Rainy days 15 days  

Humidity 82% *  

Sunshine 245 hours *  

Percentage Sunshine *  

Data from: Santamaria, Costa Rica (25 KM, 15 Miles).

Where to go in Costa Rica in December

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.

Swimming

9/10

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 Atenas.

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.