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 N5-Huracán Iota
Nov
15
Weather Report N ° 5
Hurricane Iota
November 15, 2020
8:00 a.m.
Diagnosis: Hurricane Iota (category 1) is located 615 km east-southeast of Cabo Gracias a Dios between Honduras and Nicaragua, its travel speed decreased this morning to 9 km / h, now it registers sustained winds of 140 km / h. Upon reaching its hurricane category, it tends to remain more compact, however, it maintains its interaction with the Intertropical Convergence Zone (ITCZ). The precipitation amounts for the last 12 hours are specified in the following table:
Forecast: Iota will continue to increase its intensity in the coming hours. It will be moving into the Caribbean Sea, expected to reach the Nicaraguan coast on Monday night. The main effect that it will have on our country this Sunday will be the modulation of the ITCZ, so it is expected that:
During this Sunday morning, the country remains stable, with little to partial warming and cloudiness, however, variable rains are expected in the south of the country, especially in the Osa and Golfito.
For the afternoon and evening, strong rainy activity will continue on the Pacific slope, particularly in the Central and South Pacific with amounts between 20-90 mm. In the case of the North Zone, the Central Valley, and the Caribbean mountains, strong and isolated showers with an electrical storm are expected, amounts between 20-50 mm.
The indirect influence of Hurricane Iota is expected to continue in the first days of next week.
Warning: Special attention in South Pacific regions due to high levels of saturation.
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: Sunday, 2 p.m.
Gabriela Chinchilla / Meteorologist / DMSA
