Weather warnings

May

04

Weather Warning

Rainy activity this afternoon and early evening

May 04, 2025
10.45 a.m.

Discussion: The unstable atmospheric pattern continues today, along with high humidity, associated with the proximity of the Intertropical Convergence Zone. These conditions create an ideal...

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May

03

Weather Warning

Heavy rains and a thunderstorm this afternoon and early evening

May 03, 2025
10.25 a.m.

Discussion: The Intertropical Convergence Zone continues over the country, generating a high degree of instability and humidity. This, combined with the warm temperatures recorded this morning,...

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May

02

Weather Warning

Intertropical Convergence Zone over the country this Friday

May 02, 2025
10.45 am

Diagnosis: Highly unstable conditions continue across the country this Friday. The ITCZ ​​remains positioned over the country, contributing moisture to the Pacific and Central Valley since early...

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May

01

Aviso Meteorológico

Actividad lluviosa en esta tarde y noche

01 de mayo de 2025
10.00 am

Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa sobre el país. Esto favorece un panorama húmedo e inestable, idóneo para la presencia de nubosidad y la ocurrencia de...

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Apr

30

Weather Warning

Rainy activity this afternoon and into the evening

April 30, 2025
10.20 a.m.

Discussion: The Intertropical Convergence Zone is beginning to show increased activity and is likely to remain close to Costa Rica. This favors a humid and unstable outlook, ideal for cloudiness...

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Weather warnings history

In this section you will find the weather warnings history.

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Informe Meteorológico Nro.12-IMN-110622

Jun

11

Weather Report N°12

Rainy weekend in Costa Rica

June 11, 2022
09.30 a.m.

Diagnosis This weekend the Intertropical Convergence Zone (ITCZ) will remain over Costa Rica this weekend. Added to this, due to the warm temperatures this morning, the evaporation process has started, increasing the atmospheric instability in the country today.

In addition, tropical wave #7 is located over Panama this Saturday and will be arriving in the country during the early hours of Sunday, favoring the occurrence of rains during that day.

Forecast: In general, for this afternoon and part of the night downpours with electrical storms distributed throughout the national territory are expected.

In the Central Pacific and South Pacific regions, amounts between 30mm and 60mm are expected, with maximums between 70mm and 100mm, mainly around the Osa Peninsula. The rains in these places are expected to start towards the end of the afternoon and extend until hours of the night.

On the other hand, in the North Pacific, estimated amounts between 25mm and 50mm are expected with maximums of up to 75mm.

Both in the North Zone and the Caribbean, rainfall will be isolated with amounts between 20mm and 40mm with punctual maximums. While, in the Central Valley, concentrated downpours are expected in both the northern and eastern sectors of the region, with estimated amounts between 25mm and 50mm.

Warning: Special attention to places vulnerable to flooding in: the South Pacific, south of the Nicoya Peninsula and the North Zone (including Sarapiquí); and by landslides in: the Los Santos Zone, Route 32 and mountain passes in the North Zone.

Due to the above, the IMN recommends:

  • Caution due to sewage saturation and possible flash floods in the Pacific, Central Valley and North Zone.
  • Prevention before an electrical storm and seek shelter in a safe place in case of strong gusts of wind appearing or being perceived near storm clouds, due to the possible fall of tree branches, power lines, among others.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB page: www.imn.ac.cr

Latest report related to this event.

Juan Diego Naranjo Diaz

Forecaster

DMSA/IMN


By Meteórologo de Turno 6/11/22 6/11/22 6/11/22