Weather warnings
Jul
14
Aviso Meteorológico
Onda tropical #15 transitando este lunes por el país
14 de julio de 2025
10:00 AM
Diagnóstico: La onda tropical #15 ingresó al país durante la madrugada. Aunque es una onda débil, ha generado lluvias y tormentas en zonas marítimas del Pacífico Central, el Caribe y en áreas...
Jul
13
Aviso Meteorológico Informativo
Tropical Wave #15 transiting over Costa Rica early Monday morning
July 13h, 2025
6 p.m.
Diagnosis: During the course of early Monday morning, tropical wave #15 will be passing over the national territory. Although it is a weak tropical wave, it will be interacting with the...
Jul
11
Weather Warning
Tropical wave #14 over Costa Rica this Friday
July 11th, 2025
9:50 a.m.
Diagnosis: The high humidity level across the country and the current instability are a result of Tropical Wave 14, which is positioned over the country this morning. Scattered showers have...
Jul
10
Weather Warning
Tropical Wave 14 to Pass Over Costa Rica This Friday
July 10, 2025
04.30 p.m.
Discussion: A change in the weather pattern toward more humid and unstable atmospheric conditions over Costa Rica and surrounding areas will increase the occurrence of rainfall in various parts...
Jul
08
Informative Weather Notice
Sahara dust over the country
July 08th, 2025
9:50 a.m.
Diagnosis: Increases in atmospheric pressure in the Caribbean Sea accelerate the trade winds over the basin, as well as over central and northern Spain. Furthermore, a dry, stable air mass...
Weather warnings history
In this section you will find the weather warnings history.
Jan
20
Weather Warning
Strong winds in the country by cold surge # 12
January 20, 2021
9.00 am
Diagnosis: The cold surge # 12 will be transiting the Caribbean Sea this Wednesday, this morning caused a strong increase in atmospheric pressure, a situation that is reflected in the intense...
Jan
19
Weather Warning
-Update- Strong winds on this Tuesday Cold surge influence from Wednesday
19 de enero de 2021
5.50 p.m.
Discussion: The high values of atmospheric pressure continue in the Caribbean basin, a situation that has favored accelerated trade winds over the country, the strongest towards the north and...
Jan
19
Weather Warning
Strong winds on this Tuesday - Cold surge influence from Wednesday
January 19, 2021
10.50 a.m.
Discussion: The high values of atmospheric pressure in the Caribbean basin generate accelerated trade winds over the country, with greater emphasis on the northern and central parts. During the...
Jan
17
Weather Warning
Cold push # 11 weakens but maintains influence over the country
January 17, 2021
11:20 am
Diagnosis: During the early hours of this Sunday cold thrust # 11 began to weaken and thus favored a decrease in atmospheric pressure values ??over the Caribbean Sea. Due to the above, the country...
Jan
16
Aviso Meteorológico
Empuje frío #11 afectando al país este sábado
16 de enero de 2021
10:15 am
Diagnóstico: El empuje frío #11 ha ingresado al norte Centroamérica comenzando a influenciar el tiempo sobre el país. Condiciones de cielo de parcial a mayormente nublado con lluvias y lloviznas...
Jan
14
Aviso Meteorológico
Lluvias y aguaceros esta tarde
14 de enero de 2021
3.30 pm
Diagnóstico: Debido a la disminución de los vientos alisios en el país, la Zona de Convergencia Intertropical -localizada en el Océano Pacífico- se ha acercado a Costa Rica, aportando humedad...
Jan
13
Weather Warning
Strong winds persist this Wednesday in the country
January 13, 2021
8.50 am
Diagnosis: The characteristic transit of high pressure systems in the north of the Caribbean Sea during January raises the atmospheric pressure gradient in the Central American region, thus...
Jan
12
Aviso Meteorológico-Actualización
Dia lluvioso en las regiones del Caribe y la Zona Norte (actualización)
12 de enero de 2021
3:25 pm
Diagnóstico: El arrastre de humedad desde el Mar Caribe debido al viento alisio acelerado ha provocado condiciones lluviosas en el Caribe y la Zona Norte durante este día, además de cielo...
Jan
12
Weather Warning
Rainy day in the Caribbean and North Zone regions
January 12, 2021
9.00 a.m.
Diagnosis: The trade winds in the Caribbean Sea continue of moderate to strong intensity in the basin, causing a greater contribution of humidity to Costa Rica from the maritime sector; As a...
Jan
11
Weather Warning
Strong winds in the country and rains in the Caribbean
January 11, 2021
9.30 am
Diagnosis: Cold surge # 10 is leaving the Caribbean Sea this morning and entering the Atlantic Ocean; At the same time, a high pressure system is over the Gulf of Mexico, which is why strong...
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 
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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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