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

In this section you will find the weather warnings history.

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Weather Warning-IMN-030724-09:30 a.m.

Jul

03

Weather Warning

Intertropical Convergence Zone active over Costa Rica due to indirect influence of Hurricane Beryl

July 03, 2024
9:30 a.m.

Diagnosis: Hurricane Beryl (currently Category 4) is located at this time, approximately 1050 km northeast of Puerto Limón. This system continues to move west-northwest at approximately 30 km/h and is expected to pass near the southern coast of Jamaica this Wednesday.

During the course of the day, the positioning and reactivation of the Intertropical Convergence Zone over our country is due to the indirect influence that Hurricane Beryl will exert in its transit through the north and northwest of the Caribbean Sea basin.

Forecast: The reactivation of the Intertropical Convergence Zone during the afternoon and evening hours of this Wednesday over our country will be manifested by the presence of cloudy conditions for the Pacific slope and the Central Valley. In addition, rain and showers are forecast on this slope (possible localized storm), with estimated amounts of 30 - 50 mm with maximums between 70 - 100 mm (especially near the coasts) in 12-hour periods. The most significant rainfall is expected between late afternoon and evening hours. There is a probability of fog and banks of mist in the Central Valley and mountainous areas of the Pacific from this afternoon until Thursday morning.

In the case of the Caribbean regions and lower parts of the Northern Zone, the presence of scattered showers accompanied by thunderstorms is estimated in the evening period, as well as near the coasts during the night period. The estimated amounts would be between 10 - 40 mm with maximums of 80 mm.

The probability of rain is estimated near the Pacific coasts, towards dawn and early hours of this Thursday.

Warning: The rains that may occur in urban areas can cause flash flooding and sewer saturation due to the high saturation of the soil. Saturated soils are present in the mountains of the South Pacific, low areas near the coasts of the Central Pacific and South Pacific, the mountains to the west and south of the Northern Zone, as well as both peninsulas. All regions are vulnerable to landslides and possible flooding.

Due to the above, the IMN recommends:

• Caution due to sewer saturation in places prone to this type of flooding.

• Prevention during electrical storms and seek shelter in a safe place in case 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 media: Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEBSITE: www.imn.ac.cr

Jose Pablo Valverde Mora

Meteorologist

DMSA-IMN