Weather warnings

May

08

Meteorological Warning Update

(Update) Showers and thunderstorms during the afternoon and early morningmeras horas de la noche

May 8, 2025
6:00 pm

Forecast: Rainy conditions have been observed this afternoon on the Pacific coast, much of the Central Valley, and mountainous areas of the Caribbean and the Northern Zone, due to the activity of...

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May

08

Weather Warning

Showers and thunderstorms during the afternoon and early evening

May 08, 2025
10.30 a.m.

Discussion: The Intertropical Convergence Zone remains located over Costa Rica, generating significant moisture and instability. This, along with morning warming and the arrival of sea breezes,...

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May

07

Aviso Meteorológico Actualización

(Actualización) Lluvias y aguaceros fuertes en el Valle Central y la vertiente del Pacífico

7 de mayo de 2025
6:20 pm

Diagnóstico: La Zona de Convergencia Intertropical sobre el país, en conjunto con factores locales como el calentamiento diurno y el ingreso de humedad desde el Océano Pacífico, favorecerá...

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May

07

Weather Warning

Heavy rain and downpours in the Central Valley and the Pacific slope

May 7, 2025
09:35 a.m.

Diagnosis: The Intertropical Convergence Zone (ITCZ), combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, will favor variable rainfall throughout...

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May

06

Weather Warning (Update)

Heavy showers this afternoon and early evening in the country

May 6, 2025
6:20 p.m.

Diagnosis: The proximity of the Intertropical Convergence Zone, combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, has favored heavy downpours...

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Aviso-IMN 080420-930 am

Apr

21

Aviso Meteorológico

Aguaceros aislados en el Pacífico y Valle Central con tormentas vespertinas

21 de abril de 2020
10.10 am

Diagnosis: in the morning there have been very warm conditions of temperatures up to 27 ° C and little windy in most of the Central Valley, in general this favors an afternoon downpour condition.

Forecast: During the afternoon of this Tuesday isolated downpour conditions with thunderstorms will be occurring in the mountains of the Central Pacific, South Pacific, North Zone, Caribbean, the expected amounts are between 15-50 mm in periods of 6 hours.

On the other hand, in the Central Valley there will be isolated showers with an electrical storm, particularly in the center and east of the region; the expected amounts of rain will be between 10-60 mm in periods of 6 hours.

In the night period isolated showers are expected in the South Pacific and coastal sector of the Central Pacific only, estimated amounts between 5-20 mm in 6 hours.

Due to the above, the IMN recommends:

    Caution in areas vulnerable to flooding due to sewerage saturation, especially in regions of the South Pacific and east of the Central Valley, as well as mountains of the Northern Caribbean and Northern Zone.
    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 through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEBSITE: www.imn.ac.cr


Daniel Poleo

Meteorologist

DMSA-IMN