Costa Rica has a tropical and subtropical climate with two primary seasons. The dry season, commonly known as summer, typically runs from December through May, while the rainy season extends from June through November and generally coincides with the Atlantic hurricane season.

On Tuesday, Embassy officials cautioned that heavy rainfall can quickly create hazardous conditions, particularly around rivers, waterfalls, national parks and roadways.

When visiting waterfalls or swimming in rivers, travelers should be aware that flash floods are common and can develop with little warning, authorities said.

The embassy also encourages visitors to take precautions when hiking or visiting national parks during the rainy season. Travelers should check weather conditions before participating in outdoor activities and seek guidance from professional tour guides.

Officials noted that roads and highways can quickly become dangerous because of heavy rain, strong winds, fog and the potential for landslides.

Before booking excursions, the embassy recommends verifying Costa Rica's list of certified tour guides through the Tourism Institute (ICT) and confirming that adventure sports operators are approved by the Ministry of Health.

Among the precautions recommended for travelers are checking weather forecasts, as well as wind, wave and surf conditions. Visitors should also monitor rainfall, particularly in inland areas where river levels can rise rapidly, and follow updates issued by local authorities.

"Remember that conditions can change quickly during the rainy season," the embassy said.

The embassy also advises travelers to avoid entering fast-moving rivers or streams, stay away from slippery rocks and riverbanks, avoid swimming after heavy rainfall, and never jump into unfamiliar bodies of water because submerged rocks and strong currents may not be visible. Visitors participating in rafting, kayaking or tubing should always wear a life jacket.

Motorists are urged to use caution on flooded roadways and check road conditions before traveling. Heavy rains can cause debris and fallen trees to block highways. Authorities recommend using Google Maps, Waze and Costa Rica's National Meteorological Institute to monitor road conditions before departing.

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