Weather warnings
Jul
27
Weather Warning
Tropical wave #21 passes over Costa Rica this Saturday
July 27, 2024
09.20 a.m.
Discussion: The entry of tropical wave #21 this morning and the activity associated with the Intertropical Convergence Zone have accentuated very humid and unstable atmospheric conditions in the...
Jul
26
Weather Warning (Update)
Variable rain activity for this afternoon and evening in the country
July 26, 2024
3:35 p.m.
Diagnosis: Unstable atmospheric conditions caused by the proximity of the Intertropical Convergence Zone, high humidity content and local factors have generated rainfall this afternoon in several...
Jul
26
Meteorological Warning
Variable rain activity for this afternoon and evening in the country
July 26, 2024
10:40 am
Diagnosis: Unstable atmospheric conditions will occur again this Friday over the country. This is due to the proximity of the Intertropical Convergence Zone, the high humidity content and local...
Jul
26
Meteorological Warning
Unstable atmospheric conditions during this night
July 25, 2024
10:55 pm
Diagnosis: The high humidity content and the activity associated with the Intertropical Convergence Zone, which remains over the country, favor unstable atmospheric conditions in the national...
Jul
25
Meteorological Warning
Showers with thunderstorms this afternoon and evening in several areas of the country
July 25, 2024
10:30 am
Diagnosis: The position of the Intertropical Convergence Zone over the country, together with local factors such as high temperatures and the entry of sea breezes, favor unstable atmospheric...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Informativo-IMN-250620-11.30 a.m.
Jun
25
Aviso Informativo
Polvo del Sahara en Costa Rica
25 de junio de 2020
11.30 am
Diagnóstico: Este jueves la masa de polvo del Sahara se encuentra en todo América Central, siendo perceptible en Costa Rica en forma de bruma blanca en el ambiente, reduciendo la visibilidad principalmente hacia el horizonte; además de generar un ambiente caluroso y ráfagas de viento ocasionales.
Pronóstico: La presencia del polvo se percibirá el resto de semana, esperándose la mayor concentración entre la tarde de este jueves y durante el viernes, ocasionando reducción de visibilidad y pocas precipitaciones en el país.
El IMN continuará el debido seguimiento a este fenómeno y actualizando esta información diariamente
Advertencia: Recomendamos precaución a la población con problemas respiratorios y/o alergias.
Debido a lo anterior, el IMN recomienda:
- Manténganse informados a través de las redes sociales, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR y la Página WEB: www.imn.ac.cr
Juan Diego Naranjo Díaz
Meteorólogo
DMSA-IMN
RSS IMN latest alerts(Local Notification): https://www.imn.ac.cr/en/web/imn/avisos-meteorologicos/-/asset_publisher/lTlyP4wEZlDa/rss 
RSS IMN latest alerts (Amazon Replication): https://cap-sources.s3.amazonaws.com/cr-imn-es/rss.xml 
Impact-based forecasting
Provides information on the potential impacts to occur, in case of severe hydrometeorological events
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Ephemerides
In this section you will find all the necessary information about sunrises and sunsets of the Sun and Moon, as well as all the information about the corresponding lunar phases.
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