Weather warnings

Jun

05

Weather Warning

Intertropical Convergence Zone over the country

June 5th, 2025
9:40 a.m.

Diagnosis: The Intertropical Convergence Zone is positioned over the country. This system, combined with high humidity, creates a favorable environment for rain and showers with thunderstorms...

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Jun

04

Aviso Meteorológico (Actualización)

Lluvias y aguaceros con tormenta para esta tarde (actualización)

4 de junio de 2025
5:00 pm

Diagnóstico: Las altas temperaturas registradas esta mañana, junto al aumento progresivo de la humedad en el ambiente, están generando condiciones atmosféricas favorecieron la formación de...

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Jun

04

Weather Warning

Rain and downpours with thunderstorms expected this afternoon

June 4th, 2025
9:55 a.m.

Diagnosis: The high temperatures recorded this morning, along with the progressive increase in humidity, are generating favorable atmospheric conditions for the formation of rain and showers with...

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Jun

03

Weather Warning (Update)

Favorable conditions for heavy downpours this Tuesday

03 de junio de 2025
06.10 p.m.

Discussion: Favorable atmospheric conditions for heavy rainfall are being recorded across the country this Tuesday. The high humidity from the recent rains and the high temperatures experienced...

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Jun

03

Weather Warning

Favorable conditions for heavy downpours on Tuesday

June 3th, 2025
10:00 a.m.

Forecast: Isolated showers with thunderstorms are expected along the Guanacaste and Central Volcanic mountain ranges, as well as the Central Pacific and South Pacific mountains, with estimated...

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Weather warnings history

In this section you will find the weather warnings history.

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Aviso Informativo-IMN-240620-12 m.

Jun

24

Weather Warning

Sahara dust intrusion into the country this week

June 24, 2020
10.50 a.m.

Discussion: On this Wednesday the country is immersed in a large mass of dust from the Sahara that has moved over the Caribbean Sea.

Forecast: The presence of dust will be perceived during this Wednesday and variation of its particulate is estimated in the rest of the week, with the highest concentration expected on Friday. This situation can generate reduced visibility and more isolated rainfall in the east and north of the country.

The IMN will continue to duly monitor this phenomenon and update 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 WEBSITE: www.imn.ac.cr

Rebeca Morera R
Meteorologist
DMSA-IMN