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Weather & Climate | Costa Rica Wilderness Explorer

The cool, dry season in Costa Rica generally occurs from mid-December through March, and the warm, wet season is typically from May to October. The month of November through the beginning of December is typically a transitional period from the wet to the dry season, so rain during this time is always possible, especially on the Caribbean coast and in the highlands (Don’t forget, we are visiting rain forests!). However, travel during this time of year is still highly recommended, as the rain tends to bring an abundance of wildlife, and when it does occur, it very rarely is enough to spoil the adventure.

When preparing for your adventure, remember that it can be both hot and cold during your adventure in Costa Rica. Temperatures and humidity will be higher when we visit Tiskita and the mid-Pacific coast. The Talamanca Mountains (and Arenal Volcano if you are participating in the extension) will offer cooler days and nights, and layers are best for these days. While visiting the Talamanca Mountains, overnight temperatures can dip below freezing, but the sun soon raises the temperatures in the morning, with a high risk of sunburn in the thin clear air.

It can be quite chilly during December and January, especially in a wet climate, so pack appropriately. And remember, rain is always a possibility throughout the country at any time of year! Humidity may make it feel much colder than temperatures indicate.

Green Season: mid-April to late-November
Dry Season: late-November to mid-April

AVERAGE MONTHLY TEMPERATURES & RAINFALL

(in Fahrenheit and inches)

San Jose

San Jose weather chart.

Tiskita

Tiskita weather chart.

Ballena Marine National Park (Mid-Pacific)

Ballena Marine NP weather chart.

Savegre

Savegre weather chart.

Arenal 

Arenal weather chart.

Header Credit: Ben Hulsey
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