Weather warnings



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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Weather Warning

Rains this afternoon due to the Intertropical Convergence Zone

July 9, 2024
11:10 a.m.

Diagnosis: The Intertropical Convergence Zone over our country and local factors will be favoring the presence of afternoon rains for the afternoon of this Tuesday. In the morning hours,...

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Aviso Meteorólogico IMN 200520



Weather Warning

Intense downpours in the north of the country

May 20, 2020
3.30 pm


Diagnosis: This Wednesday continues the high moisture content in the region, this factor combined with the high temperatures in the national territory; In addition to the atmospheric instability caused by the influence of the Intertropical Convergence Zone, it is promoting intense downpours with an electrical storm in the north and center of the country, the highest accumulated at this time are in Upala, with a record of 80 mm, thus same 55 mm in Cañas, 36 mm in La Garita and 30 mm in Iztarú.

Forecast: The intense rainy activity with a storm that occurs in the north of the country will continue throughout the afternoon, especially in the Northern Zone.

For this afternoon and early evening, showers of varying intensity and showers with thunderstorms are expected on the Pacific side. The most intense activity is expected for the areas in the vicinity of the mountainous parts, as well as in and around the Nicoya and Osa peninsulas.

On the other hand, in the Central Valley and the Caribbean, rains and showers with an electrical storm are expected. For its part, for the coastal parts of the Caribbean, occasional rains of moderate intensity are anticipated for the remainder of the day.

Due to the above, the IMN recommends:

• Caution in areas vulnerable to flooding due to sewerage saturation, increased flow in rivers and streams, as well as sectors 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:

Gabriela Chinchilla