Costa Rica weather
Our guide to the weather in Costa Rica during December
We've looked at the most up-to-date weather data for Costa Rica, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Costa Rica weather in December.
How warm is it in Costa Rica during December?
The temperature reaches around 24℃ during the daytime in December, falling away to 14℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Costa Rica during December?
On average, there will be 8 rainy days during the month, amounting to 156.7mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. You're not likely to see a thunderstorm during your trip.
Is it windy in Costa Rica during December?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in December. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.
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December
