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...

See More


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...

See More


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...

See More


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...

See More


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...

See More


Weather warnings history

In this section you will find the weather warnings history.

« Back

Aviso Meteorológico Informativo-IMN-180820-0120pm

Aug

18

Informative Weather Warning

Tracking tropical wave # 30 and its potential in tropical cyclone

August 18, 2020
01.20 p.m.

Discussion: Tropical wave # 30 is located in the Caribbean Sea north of Venezuela, approximately 1630 km from Costa Rica. The National Hurricane Center (NHC) indicates development potential in a tropical depression of 20% (low) in the next 48 hours and 70% (high) in 5 days.

Forecast: According to the latest analysis, tropical wave # 30 will be approaching Costa Rica on Thursday. Due to its possible position and strengthening in a tropical cyclone, a high probability of indirect influence towards our country is estimated; which can generate an increase in rainfall in the national territory from that day and towards the weekend.

The IMN will keep strict monitoring of the evolution of said disturbance and will inform in a timely manner of any variation of the same and its possible influence on the country.

Therefore, the IMN recommends:

  • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

Rebeca Morera R
Meteorologist
DMSA-IMN