Weather warnings
Jun
28
Weather Warning
Tropical Wave #10 over Costa Rica
June 28th, 2025
10:30 a.m.
Diagnosis: Tropical wave #10 is over the country this Saturday, causing instability in maritime areas of the Caribbean and northern parts of the Northern Zone. There has been increasing...
Jun
27
Weather Warning -Update-
Rainy Afternoon in Costa Rica
June 27th, 2025
05.40 p.m.
Forecast: After the passage of Tropical Wave 9 yesterday, Thursday, the atmosphere remains unstable over the country. Along with warm morning temperatures and high humidity from recent rains,...
Jun
27
Weather Warning
Tarde lluviosa en Costa Rica
June 27th, 2025
10:00 am
Diagnosis: After the passage of tropical wave #9 on Thursday, the atmosphere continues to be unstable over the country, which, together with the warm temperatures of this morning and the high...
Jun
26
Weather Warning | Update
Rainfall activity of varying intensity this afternoon in the Pacific and Northern Zone
June 26, 2025
5:00 p.m.
Diagnostic: The passage of Tropical Wave #9, in combination with the Intertropical Convergence Zone, maintains atmospheric instability over the country. This has generated rain showers and...
Jun
26
Weather Advisory
Variable intensity rainfall expected this afternoon, in the Pacific and North Zone
June 26th, 2025
9:50 a.m.
Diagnostic: Tropical Wave 9, located in the Pacific near the country, is still unstable in its surroundings. Along with the Intertropical Convergence Zone over southern Central America, it will...
Weather warnings history
In this section you will find the weather warnings history.
Informe Meteorológico -IMN-131120-1640
Nov
13
Informe Meteorológico N°1
Depresión tropical 31 se intensifica y se convierte en tormenta tropical Iota
13 de noviembre de 2020
6:00 p.m.
Diagnosis: Tropical depression # 31 has strengthened in the last hours becoming tropical storm Iota, moving at 17 km / h towards Honduras, as shown in the map of the Miami Hurricane Center, on the other hand, there is no impact on Costa Rica of this tropical cyclone.
Forecast: During the night of Friday the system will continue to move westward, without affecting Costa Rica.
For Saturday morning it is expected that there will be no influence of the tropical cyclone throughout the national territory. Morning rains are not expected in most of the country.
During the afternoon and night of Saturday, the system will continue its movement towards Central America slowly, strengthening, beginning to have an indirect influence in the country, reinforcing the rainy activity in the Central and South Pacific, where there will be amounts between 30-75 mm throughout the period. . In the Central Valley and North Pacific there will be rains with amounts between 5-30 mm, as well as in the mountainous sectors of the Caribbean and the North Zone.
With the current analyzes it is expected that, in the late hours of Saturday night and Sunday morning, there will be no rainfall throughout the national territory.
Warning: Special attention in regions of the South Pacific.
Due to the above, the IMN recommends:
Caution in areas vulnerable to flooding due to sewerage saturation and increased flow in rivers and streams.
Take shelter in a safe place in case of hearing an electrical storm or perceive strong gusts of wind near the storm clouds, as well as caution against possible falling tree branches, power lines, among others.
Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr
Next report: Saturday, 8 a.m.
Daniel Poleo
