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Weather in Costa Rica in December – is it worth traveling to?

Is the weather good for travel in December? Find out what the weather is like in Costa Rica to plan your trip accordingly.
Check flight prices to Costa Rica on Avionero:
December

Is the weather good in Costa Rica in December 2024?

Good Weather
Warm
🌧️
Rainy

For the past few decades, the average daily temperatures in Costa Rica during December have been around +75°F.

In Costa Rica the temperature rarely varies more than seven degrees between the different parts with the highest temperature +75°F in San Jose to +75°F in San Jose. So you should be able to pack for similar conditions wherever you go in the country.

Temperature, wind and humidity in December

Average
San Jose
☀️
+75°F
Avg. max. temperature
+55°F
Min.
+82°F
Max.
270 mm
Total precipitation
74%
Avg. humidity
3 m/s
Avg. wind
5 ☀️
Sunny Days
2 ⛅️
Cloudy
24 🌦
Rainy
Our opinion: Costa Rica has good weather in December.
Costa Rica in December – what city is the…
  • rainiest? San Jose, with an average of 9 mm of rain and humidity of 74%;
  • warmest? San Jose, with daytime temperatures averaging +75°F;
  • windiest? San Jose, with an average of 3 m/s;
  • coolest? San Jose, with daytime temperatures averaging +75°F;

How good is the weather in Costa Rica in December?

During December, the Costa Rica usually offers good weather overall, with air pressure around 1013 HPa. This means you may encounter some rainy weather too – December brings around 457 mm of rain and winds averaging 3 m/s. Humidity ranges between 74% in San Jose and 74% in San Jose. In general, it tends to be more humid near the sea and lake and drier inland.

How warm is it in Costa Rica during December?

The weather is usually pretty good this time of year, with daytime temperatures around +75°F.

This is how hot it usually is in December

The average daily temperatures above don't tell you everything about how hot it can be in Costa Rica. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for December:
Average
San Jose
  • Average maximum temperature for the month: +75°F;
  • Average minimum temperature for the month: +63°F;
  • Highest monthly temperature: +75°F;
  • Lowest monthly temperature: +61°F;

Monthly temperatures:

Average
San Jose
  • Warmest: March with an average +79°F during the day;
  • Coldest: January with an average +75°F of the day;
  • Hottest month in hottest city: March in San Jose;
  • Coldest month in coolest city: January in San Jose;

Winds in Costa Rica during December

Wind speed in Costa Rica in December based on historical data:
Average
San Jose

December tends to offer light winds averaging 4 m/s. However, coastal cities may experience breezes during the mornings and afternoons.

Comparison between cities in December:

  • Highest average wind speed: San Jose with 3 m/s;
  • Lowest average wind speed: San Jose with 3 m/s;
  • Windiest day of the month: San Jose with 4 m/s;
  • The least windy day of the month: San Jose with 3 m/s;

Humidity and precipitation in Costa Rica in December

Amount of rainfall in mm during December in Costa Rica based on historical data:
Average
San Jose
December tends to be an extremely humid month with 77% humidity and 457 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.

Comparison between cities in December:

Average
San Jose
  • Highest average rainfall: San Jose with 270 mm;
  • Lowest average rainfall: San Jose with 270 mm;
  • Most number of rainy days: San Jose with 24 rainy days;
  • Least number of rainy days: San Jose with 24 rainy days;
  • Highest risk of rain during the day: San Jose with 77%;
  • Least risk of rain during the day: San Jose with 77%;
  • Highest average humidity: San Jose with 74%;
  • Lowest average humidity: San Jose with 74%;

Tips for traveling to Costa Rica in December

Looking for some tips for traveling to the sun, snow, or whatever you're aiming for Costa Rica? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.

Here is some advice on what to pack and what kind of activities you can do in the Costa Rica based on the weather that December is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.

rainy, warm weather with light winds and very high humidity in December
Avionero

Pack right for December

The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
  • For light showers, an umbrella or a thin and light rain cape is usually sufficient, while more rain may require rainwear and rain boots.
  • Warm - neither hot nor cool, are probably the most comfortable when you think of sunbathing. Shorts, shorter skirts or dresses, tank tops and t-shirts are the basics here. If you're going to a seaside resort, don't forget your swimwear and maybe even a snorkel, mask and flippers.
  • Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
  • High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.

FAQ

Frequently asked questions about the weather in Costa Rica in December:

What can you do outside when it's warm in Costa Rica?

Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.

Is December a good time to visit Costa Rica?

December is a really good time to go to Costa Rica. The weather is nice so plan your packing around outdoor activities and exploring. Check other months when is a good time to visit Costa Rica.

Monthly weather in Costa Rica

Source of the data

For this page, we’ve looked at the typical weather in Costa Rica, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.