Weather warnings

May

18

Weather Warning

Scattered showers and thunderstorms this Sunday in recurring sectors

May 18, 2025
09:40 a.m.

Diagnosis: Local factors such as humid Pacific breezes and warm temperatures will favor scattered showers with thunderstorms this Sunday afternoon in areas where significant rainfall has occurred...

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May

17

Weather Warning

Scattered heavy downpours with thunderstorms this Saturday

May 17, 2025
10:20 a.m.

Forecast: The passage of Tropical Wave 2, along with local factors such as humid breezes from both sides and warm temperatures, will favor scattered showers and thunderstorms this Saturday...

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May

16

Aviso Meteorológico (Actualización)

Lluvias durante el final de la tarde del viernes

16 de mayo de 2025
4.30 p.m.

Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical y factores locales típicos de...

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May

16

Aviso Meteorológico

Actividad lluviosa variable esta tarde de viernes

16 de mayo de 2025
11:00 am

Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical. A esto se suman factores...

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May

15

Aviso Meteorológico (Actualización)

Aviso Meteorológico-IMN-150525-Condiciones lluviosas en esta tarde y noche (actualización)

15 de mayo de 2025
6:00 pm

Diagnóstico: La Zona de Convergencia Intertropical se encuentra próxima a Costa Rica y, junto con condiciones de inestabilidad en niveles altos de la atmósfera y factores locales, ha generado un...

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Weather warnings history

In this section you will find the weather warnings history.

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Informe Meteorológico-IMN-200120-430pm

Jan

20

Weather Report

The windy pattern will persist in the country due to the entry into the Caribbean Sea of cold push # 17 in addition to the rains in the Caribbean and North Zone tonight

January 20, 2020
4.30 p.m.

Diagnosis: The rains in the last hours in the Caribbean have decreased intensity, but it continues to rain mainly near the mountainous sectors. The accumulated rainfall from 7 a.m. have not exceeded 32 mm. With regard to winds, the gusts have not increased in intensity since the last report, so it is maintained that the North Pacific is the windiest region, with speeds 50-70km / h, with a maximum burst of 92km / h in La Cruz and near the Cordillera de Guanacaste.
 
Forecast: The strong windy pattern will continue in much of the country and at least until Wednesday, this due to the entry of a new cold thrust into the Caribbean Sea tonight, which will keep the trade winds accelerated. Occasional gusts are forecast in Guanacaste, the Central Valley and the mountain ranges with maximum intensities estimated between 40-80 km / h for the lowlands and between 50-100 km / h in the mountains.

Regarding the rains in the Caribbean, they are expected to occur near the coast of Limón during the night, with amounts between 10-20mm and maximums in a timely manner between 25-50mm. In the mountainous sectors of the Caribbean and the North Zone, there will be weak rains throughout this period, with amounts between 5-10mm and maximums of 15-20mm.

Special attention to areas with vulnerability to floods because due to the persistence of rainfall in the area during the last days the soils are saturated. It is recommended to be aware of the official communiqués of the National Emergency Commission, as well as of the official entities.


Next report today at 10 p.m.
 
Due to the above, the IMN recommends:

• Extreme precautions due to strong winds and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
• Caution for boats by choppy sea and very strong waves in the North Pacific, Gulf of Nicoya, Central Pacific and the Caribbean Sea, as well as air navigation due to turbulence over the mountainous sectors.
• Avoid burning of all kinds as they can get out of control.
• Caution in areas vulnerable to flooding due to sewer saturation, increased flow in rivers and streams, and in areas prone to landslides.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute and the Website: www.imn.ac.cr

Juan Diego Naranjo Díaz
Meteorologist
DMSA-IMN