San Antonio weather in December (Heredia, Costa Rica)

Looking to travel to San Antonio in December? This guide provides all the details you need.

In December, San Antonio generally has high temperatures and high rainfall. Throughout the daytime, temperatures often hover around 25°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 16°C.

San Antonio in December usually receives high rainfall, averaging around 117 mm for the month. Typically around 15 days of rainfall is expected.

With around 244 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

In case you lean more towards enjoying temperate temperatures and rain-free days January, February, March and April 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 San Antonio climate page with graphs.

 

San Antonio, monthly averages in December

Min Temperature 16°C  

Max Temperature 25°C  

Chance of Rain 51%  

Precipitation 117 mm  

Rainy days 15 days  

Humidity 74% *  

Sunshine 244 hours *  

Percentage Sunshine *  

* Data from: San José, Costa Rica (12 KM, 7 Miles).

Where to go in Costa Rica in December

Find out more about the weather in Costa Rica in December and which places have the best weather 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 San Antonio in December?

For visitors traveling to San Antonio, 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 in December.

Swimming

9/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

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

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.