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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Aviso Informativo-IMN-230620-12 m.

Jun

23

Weather Warning

Sahara Dust Layer in Costa Rica this week

June 23, 2020
12 m.

Diagnosis: A large mass of Sahara Dust Layer is found in the Caribbean Sea this week, arriving in Central America this Tuesday. This situation is usual in the region during the months of June to August, however, this one in particular has a high concentration of it.

Forecast: The presence of dust begins to be perceived from this Tuesday and will increase in the course of the week, with the highest concentration expected on Friday; which could generate reduced visibility and more isolated rainfall in the east and north of the country.

The IMN will be monitoring this phenomenon and updating this information daily

Warning: We recommend caution to the population with respiratory problems and / or allergies.

Due to the above, the IMN recommends:

• Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB page: www.imn.ac.cr

Juan Diego Naranjo Díaz
Meteorologist
DMSA-IMN


By Juan Diego Naranjo 6/23/20 6/23/20 6/23/20