Weather warnings
Jul
01
Weather Warning
Rainy conditions in the Caribbean and Northern Zone this Tuesday and Tropical Wave #12
Jul 01th, 2025
10 am
Diagnosis The strengthening of the trade winds over the central and northern regions of the country has produced wind gusts of up to 50 km/h in areas such as Alajuela this morning. This...
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...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-120720-0230pm
Jul
12
Weather Warning
Tropical wave # 19 will continue generating rains in the country
July 12, 2020
02.30 p.m.
Discussion: Tropical wave # 19 crosses the north of the country, the instability that it causes in its path has generated rains in the northern border sector during the morning. At this time, it maintains isolated showers and showers with an electrical storm in the Nicoya Peninsula, the South Pacific, the Caribbean mountains and the North Zone, with accumulations between 10-40 mm.
Forecast: During the afternoon and early evening, showers and showers with isolated thunderstorms are expected in the Central Pacific and South Pacific regions, Nicoya Peninsula, in addition to mountainous sectors of the Caribbean and the Northern Zone with accumulated between 20 -50 mm and maximums of up to 60 mm on time. Isolated rains and showers are estimated in the Central Valley; with amounts between 10-30 mm.
Warning: Special attention in the North Zone, South Pacific and mountains of the Caribbean, since they show important levels of soil saturation.
Due to the above, the IMN recommends:
- Caution in areas vulnerable to flooding due to increased flow in rivers and streams.
- Take refuge in a safe place in case of hearing an electrical storm or perceiving strong gusts of wind near storm clouds, as well as precaution for 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
Rebeca Morera R
Meteorologist
DMSA-IMN
