Weather warnings
May
28
Weather Warning (Update)
Tropical Wave #3 over Costa Rica this Wednesday
May 25, 2025
6.15 pm
Forecast: Tropical Wave 3 is crossing Costa Rica this Wednesday, increasing instability in its wake. In recent hours, heavy downpours have been recorded on the Pacific coast. This is more...
May
28
Weather Warning
Tropical Wave #3 over Costa Rica this Wednesday
May 28, 2025
10:00 a.m.
Diagnosis: Tropical wave #3 will cross Costa Rica during the course of Wednesday, increasing the atmospheric instability over the country and reinforcing rainfall for this afternoon and evening. ...
May
27
Weather Warning
Tropical Wave 3 will move over Costa Rica this Wednesday
May 27, 2025
07.00 p.m.
Discussion: Tropical Wave 3 is moving over eastern Panama. This system will continue its westward movement, entering Costa Rica on Wednesday. This, along with local factors such as morning...
May
26
Weather Warning (Update)
Variable rainfall in recurring areas.
May 26, 2025
6:05 p.m.
Diagnosis: The Intertropical Convergence Zone is located over Costa Rica and Panama, bringing moisture from both sides. Along with the presence of trade winds in the central Caribbean Sea and...
May
26
Weather Warning
Variable rains this afternoon in frequent sectors
May 26, 2025
10:00 a.m.
Diagnosis: The Intertropical Convergence Zone is located over Costa Rica and Panama, bringing moisture from both sides. The presence of trade winds in the central Caribbean Sea and local factors...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-211123-1030 a.m.
Nov
21
Weather Warning
Rain of varying intensity this afternoon and evening
November 21, 2023
10.30 a.m.
Discussion: Local factors such as morning warming, high humidity content and entry of sea breeze generate an unstable atmospheric pattern in our country, favoring ideal conditions for the occurrence of rainfall of varying intensity this afternoon and night.
Forecast: Rains of varying intensity and occasional heavy downpours with thunderstorms are expected in the afternoon; starting in the mountainous sectors of the Central and South Pacific, as well as in the Central Valley. For its part, in the Tempisque Valley, Nicoya Peninsula, Northern Zone and mountains of the Caribbean, isolated showers and storms are estimated. Cumulative estimates between 25-50 mm, maximums between 60-80 mm.
Rainy activity will extend into the night hours in regions of the Pacific and Central Valley. In addition, fog banks are possible in mountainous sectors.
Warning: Soil saturation continues with high percentages in the North Zone, North Caribbean and South Pacific, take extreme preventive measures.
Due to the above, the IMN recommends:
- Caution due to sewage saturation and possible flash floods, as well as the main routes of the country in the event of heavy rain events.
- Prevention against electrical storms and seeking shelter in a safe place in case strong gusts of wind occur or are perceived near storm clouds, due to the possible fall of tree branches, power lines, among others.
- Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
Rebeca Morera R.
Meteorologist
DMSA-IMN
