Weather warnings



Weather Warning

Accelerated trade winds and displacement of Easterly Wave n.°19

July 13, 2024
10.30 a.m.

Diagnosis: During the first hours of this Saturday, a low concentration of Saharan dust was present over the national territory, and to a greater extent towards the center and north of Central...

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Meteorological Warning

Accelerated trade winds and rains in the country this Friday

July 12, 2024
10:20 am

Diagnosis: Unstable atmospheric conditions persist in southern Central America, due to the position of the Intertropical Convergence Zone and the drag of humidity from the Caribbean by the trade...

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Aviso Meteorológico (Actualización)

Onda tropical #18 saliendo de Costa Rica

11 de julio de 2024
3:00 p.m.

Diagnóstico: La onda tropical #18 ha dejado abundantes e intensas precipitaciones en las últimas horas en el país, pero principalmente en la Zona Norte registrándose acumulados entre 100 mm y los...

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Weather Warning

Tropical wave #18

July 11, 2024
9.45 am

Diagnosis: is over Costa Rica this Thursday, causing unstable conditions in the maritime sector off the coast of Limón, which is causing rain and showers with thunderstorms...

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Aviso Meteorológico

Lluvias y tormenta eléctrica durante la tarde y noche y onda tropical #18 para este jueves

10 de julio de 2024
10.15 a.m.

Discussion: The Intertropical Convergence Zone remains close to the region, which contributes significant moisture content to the environment. This favors cloudiness in the surroundings of the...

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Aviso Meteorólogico IMN 210520



Weather Warning

Rainy conditions will be present during the afternoon and evening

May 21, 2020
0900 am

Diagnosis: the proximity of the Intertropical Convergence Zone, the weakness of the trade winds are factors that favor evening rains.

Forecast: during the afternoon and night there will be intermittent rains and showers with possible isolated thunderstorms on the Pacific and Central Valley slopes, as well as in the mountainous sectors of the Caribbean and the Northern Zone. The amounts of rain estimated in the Pacific will be between 15-70 mm in 12-hour periods, in the Caribbean and the North Zone the amounts will be between 10-60 mm and in the Central Valley amounts between 5-35 mm are expected in periods of 3 hours.

The coastal Caribbean and surrounding areas will have very little rainfall in most of the region. It is estimated that rainfall can extend until the early hours of the night in the Pacific and mountainous areas of the country.

Due to the above, the IMN recommends:

    Caution in areas vulnerable to flooding due to sewerage saturation, increased flow in rivers and streams, and in areas prone to landslides.
    Prevention on national routes such as: route 1, route 10, route 27, route 21, route 32, route 34, route 141 and route 126.
    Take refuge in a safe place in case of hearing an electrical storm or perceiving strong gusts of wind near the storm clouds, as well as precaution for possible fall of tree branches, power lines, among others.

    Stay informed via Twitter: @IMNCR, Facebook: CR National Meteorological Institute and the WEB Page:

Daniel Poleo