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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Weather Warning

Oct

09

Variable rainfall in the North and Central Pacific

October 9, 2024
02:00 a.m.

Diagnosis: The entry of humidity from the Pacific Ocean into the national territory, as well as the proximity of the Intertropical Convergence Zone, have favored rains of varying intensity for the North and Central Pacific during the night of this Tuesday and so far in the early hours of Wednesday. In the last 6 hours in these regions, rainfall accumulations of 5 - 35 mm have been recorded, with a maximum point in Herradura of 80 mm.

 

Forecast: During the rest of the early morning and even the first hours of the morning of this Wednesday, light to moderate rains will continue in coastal sectors of the North and Central Pacific, as well as in the Gulf and Nicoya Peninsula, with estimated amounts between 20 - 50 mm in a period of 6 hours. For the rest of the country, partial to total cloud conditions are expected, with accumulations of no more than 10 mm in 6-hour periods..

 

Warning: Saturation of elevated soils remains in the North Zone, North Pacific and South, these regions are highly vulnerable to river flooding and/or landslides.

 

Debido a lo anterior, el IMN recomienda:

 

  • Caution due to sewer saturation in places prone to this type of flooding.
  • Prevention against electrical storms and seek shelter in a safe place in case of occurrence or perception of strong gusts of wind near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach 80 km/h in some isolated cases.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr.

 

 

Andrés Gamboa Valverde

Meteorologist

DMSA-IMN