Weather warnings

Jul

01

Weather Warning

Rainy conditions in the Caribbean and Northern Zone this Tuesday and Tropical Wave #12

Jul 01th, 2025
10 am

Diagnosis The strengthening of the trade winds over the central and northern regions of the country has produced wind gusts of up to 50 km/h in areas such as Alajuela this morning. This...

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Jun

28

Weather Warning

Tropical Wave #10 over Costa Rica

June 28th, 2025
10:30 a.m.

Diagnosis: Tropical wave #10 is over the country this Saturday, causing instability in maritime areas of the Caribbean and northern parts of the Northern Zone. There has been increasing...

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Jun

27

Weather Warning -Update-

Rainy Afternoon in Costa Rica

June 27th, 2025
05.40 p.m.

Forecast: After the passage of Tropical Wave 9 yesterday, Thursday, the atmosphere remains unstable over the country. Along with warm morning temperatures and high humidity from recent rains,...

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Jun

27

Weather Warning

Tarde lluviosa en Costa Rica

June 27th, 2025
10:00 am

Diagnosis: After the passage of tropical wave #9 on Thursday, the atmosphere continues to be unstable over the country, which, together with the warm temperatures of this morning and the high...

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Jun

26

Weather Warning | Update

Rainfall activity of varying intensity this afternoon in the Pacific and Northern Zone

June 26, 2025
5:00 p.m.

Diagnostic: The passage of Tropical Wave #9, in combination with the Intertropical Convergence Zone, maintains atmospheric instability over the country. This has generated rain showers and...

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Weather warnings history

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Aviso Meteorológico-IMN-270720-1030am

Jul

27

Weather Warning

July 27, 2020
10.30 a.m.

Discussion: Various factors will generate optimal conditions for the occurrence of rain and downpours accompanied by thunderstorms during the afternoon and early evening at various points in the national territory, which are the proximity of the Intertropical Convergence Zone, the warm morning temperatures and the entry of sea breezes.

Forecast: In the afternoon, cloudy developments and rain of variable intensity are expected, showers with electrical storms in the regions of the Pacific, North Zone, Central Valley; accumulated from 40-60 mm, higher amounts of isolated character are possible. On the other hand, in the Caribbean, rains are estimated in the mountainous sectors with accumulated between 10-30 mm.

In the early hours of the night, moderate rains will be maintained in the Pacific -especially coastal areas-, as well as in the North Zone with amounts between 20-40 mm. In the Central Valley scattered light rains are possible.

Warning: Considerable soil saturation is maintained in sectors of the North and South Pacific, as well as in the North Zone; therefore, special attention is requested.

Due to the above, the IMN recommends:

  • Caution in areas vulnerable to flooding due to increased flow in rivers and streams.
  • Take refuge in a safe place in case of listening to a thunderstorm or perceiving strong gusts of wind near storm clouds, as well as caution for possible falling 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