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-290420-1000am

Apr

29

Weather Warning

Rainy conditions on this Wednesday

April 29, 2020
10.00 a.m.

Discussion: The proximity of the Intertropical Convergence Zone is generating humid and unstable atmospheric conditions, conducive to the occurrence of precipitation. From early in the morning, cloud cover is present in the Caribbean and the North Zone, where isolated rains with amounts of less than 10 mm also appear. In addition, cloud cores approach the South Pacific causing isolated showers.

Forecast: During the rest of the morning, isolated rains and showers will be maintained with a possible electrical storm in the Caribbean and the Northern Zone, which tend to decrease in the course of the afternoon, amounts between 20-40 mm are estimated.

In the Central and South Pacific, rainfall will occur around noon and will continue during the afternoon and early evening, the rains will be accompanied by a thunderstorm, accumulated estimates between 25-50 mm. For its part, in the Central Valley and the Nicoya Peninsula, showers and showers with isolated thunderstorms are expected, mainly in the afternoon, 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