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-180620-0230pm
Jun
18
Weather Warning
Tropical wave # 7 will generate rains in the Pacific during the afternoon
June 18, 2020
02.30 p.m.
Discussion: Tropical wave # 7 is located in the west of our country, generating instability in its path. The entrance of the same caused rains this morning in the North Caribbean and North Zone with accumulated between 15-30 mm and cloudy conditions in the rest of the country.
Forecast: Tropical wave # 7 will be reinforcing in the late afternoon and night in a moderate way the precipitations in the Pacific slope, especially in the coastal part, it is estimated isolated showers and localized electrical storm, accumulated will vary between 40 to 60 mm. In the Central Valley, Caribbean, North Zone and South Caribbean, partial to total cloudiness is expected this afternoon, the rains will be scattered with amounts between 5-20 mm.
Warning: Special attention in the Pacific regions and the North Zone due to the high levels of humidity in the soils given the persistence of rainfall in recent days in these areas.
Due to the above, the IMN recommends:
Caution in areas vulnerable to flooding due to sewer saturation.
Take refuge in a safe place in case of listening to a thunderstorm or perceiving strong gusts of wind near storm clouds, as well as caution for possible falling tree branches, power lines, among others.
Attention on the main national highways, such as route 27 and route 32.
Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB page: www.imn.ac.cr
Rebeca Morera
Meteorologist
DMSA-IMN
