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Published on Tuesday, June 2, 2026
By the A.M. Costa Rica staff
Costa Rica is
expected to experience increased
rainfall this week as the seventh
tropical wave of the rainy season moves
across the country, according to the
National Meteorological Institute (IMN). Experts noted that
although the National
Emergency Commission (CNE) recently
issued a Green Alert for portions of
the country's Pacific region because
of an anticipated decrease in
rainfall during the rainy season, precipitation
associated with tropical waves can still
occur throughout the season. Costa Rica has a
tropical and subtropical climate
with two primary seasons. The dry season,
commonly referred to 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.
The weather system was moving
along Panama's Caribbean Coast
Monday and is forecast to reach
Costa Rica by Tuesday
evening, bringing heavy rain and
thunderstorms to much of the
country. Meteorologists said the tropical
wave is expected to pass within 24
hours. However, lingering moisture
could continue to generate showers
through Thursday, with conditions
gradually improving by Friday. The IMN also warned that the
Intertropical Convergence Zone, a
low-pressure belt near the equator
that fuels storm activity, is
expected to intensify rainfall as it
shifts over Costa Rica from the
Pacific Ocean toward the Caribbean
Sea. The IMN forecast
the following rainfall totals across the
country:
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The
CNE is maintaining a Green Alert,
the agency's lowest warning level, for the
Caribbean Coast, including Limón Province.
No rain-related alerts have been issued for the rest of the country.
The
Ministry of Public Works and
Transportation (MOPT) issued a
precautionary advisory for Route
32,
the main highway connecting San José and
Limón. Authorities said overnight closures
are possible because of heavy rain and the
risk of landslides.
Drivers were advised to use alternate routes, including Route 10 through Turrialba canton (Cartago) and onward to Siquirres canton (Heredia), before reconnecting with Route 32 toward Limón. MOPT said it will post traffic updates through its official social media channels.
Authorities
urged residents to take several
precautions during the storm, including:
The
IMN is Costa Rica’s government agency
responsible for issuing weather forecasts,
hazardous weather warnings and related
public safety information.
CNE
works in partnership with communities and
emergency responders to strengthen the
nation’s preparedness, response, and
recovery from natural hazards.
MOPT
is the government agency responsible for
managing the country’s roads, ports, and
airports, as well as overseeing public
transportation policy.
A.M. Costa Rica
encouraged readers to share the weather
advisory with their networks
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