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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Weather warnings history

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Aviso Meteorológico-IMN-290420-0450pm

Apr

29

Weather Warning

Rainy pattern will extend into the night hours

April 29, 2020
04.50 p.m.

Discussion: As mentioned in the morning warning, the proximity of the Intertropical Convergence Zone is generating humid and unstable atmospheric conditions, conducive to the occurrence of precipitation. During the afternoon the rainy activity has manifested itself in the Central and South Pacific, as well as in the Central Valley, the heaviest rains have been concentrated in the south of the country with accumulations of up to 72 mm.

Forecast: For the remainder of the afternoon and early evening, it is expected that rains of variable intensity and thunderstorms will continue in the Central and South Pacific regions, amounts between 30-60 mm. On the other hand, in the Central Valley, the Nicoya Peninsula, the North Zone and the Caribbean mountains, rainfall and showers with isolated thunderstorms are estimated, amounts between 10-30 mm.

Due to the above, the IMN recommends:

  • Caution in areas vulnerable to flooding due to sewerage saturation.
  • 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


Rebeca Morera R
Meteorologist
DMSA-IMN