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 report

Nov

03

Weather Report # 12

Meteorological Report N ° 12-IMN-031120-Hurricane Eta downgrades to category 2 after entering Nicaragua and continues to indirectly influence Costa Rica

November 03, 2020
10:00 pm

 

Diagnosis: Hurricane Eta has lost strength after entering Nicaraguan territory maintaining sustained winds of 165 km / h (category 2), its center is located 70 km west-southwest of Puerto Cabezas, Nicaragua. Regarding our country, this system is located approximately 441 km north of the city of Limón. Eta travels at 9 km / h in a westerly direction, entering Nicaraguan territory.
 
 In Costa Rica, the indirect influence of this system has caused rains of variable intensity during this afternoon and part of the night, the most intense on the Pacific slope, especially in the North Pacific (Guanacaste), where accumulations of up to 52mm are recorded. in the last 3 hours. With cut-off at 10:00 pm, the accumulated maximums of the last 6 hours (since the previous report) by region are:
 

Climatic region

Accumulated range (6 hours)

Highs recorded

North Pacific

30-163 mm

Hojancha 163 mm (Máximo localizado)

Central Pacific

15-25 mm

Herradura 25mm

South Pacific

30-68mm

Ciudad Neily 68 mm, Río Claro 50 mm

Central Valley

5-25mm

Fraijanes 25 mm, Santa Bárbara 17 mm

North Zone

1-19mm

Upala 19mm

Caribbean

Less than 1mm

 
 
Forecast: According to the National Hurricane Center (NHC), Hurricane Eta will continue its movement over Nicaraguan territory, progressively losing intensity to later enter Honduran soil approximately tomorrow, Wednesday, around noon, with tropical storm intensity. Throughout this period, the indirect influence on Costa Rica will persist.
 
In Guanacaste there are important cloud cores, which would be generating rains of variable intensity, with localized downpours, especially in places like Liberia, La Cruz, the Nicoya Peninsula and coastal sectors of the North Pacific. Amounts between 20-100 mm are estimated.
 
In the Central and South Pacific rains are expected between weak and moderate with occasional showers, especially in the coastal zone and border sectors with Panama. With accumulated estimates between 20-40mm.
 
In the Central Valley, the North Zone and the Caribbean, there could be intermittent rains; in addition to fog banks.
 
Warning: Special attention due to the saturation of soils in the regions of the Pacific Slope, particularly in the cantons of Nandayure, Nicoya, Liberia, Carrillo and Hojancha in the North Pacific, in the South Pacific to Buenos Aires, Brus preserve and Osa and in the Central Pacific Parrita and Aguirre. Also pay special attention to the Los Santos area due to the risk of landslides.
 
Due to the above, the IMN recommends:
 
• Caution in areas vulnerable to flooding due to sewerage saturation and increased flow in rivers and streams.
• Take shelter in a safe place in case you hear an electrical storm or perceive strong gusts of wind near the storm clouds, as well as caution against possible falling tree branches, power lines, among others.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr
 
Next report: Wednesday, November 4, 04:00 a.m.
 
Andres Gamboa
Forecast
DMSA-IMN

 


By Meteorologo Turno del Coco 11/3/20 11/4/20 11/3/20