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-110720-0300pm
Jul
11
Weather Warning
Rainy afternoon activity in the South and Central Pacific
July 11, 2020
03.00 p.m.
Discussion: The Intertropical Convergence Zone is active and close to the country, a situation that maintains instability, causing the presence of rain this afternoon. At this time, isolated rains and showers are maintained in the South Pacific, as well as in the North Zone (Upala and Guatuso), the accumulated ones are around 10-25 mm.
Forecast: During the afternoon and early evening, heavy rains and heavy showers with thunderstorms are expected in the Central and South Pacific, as well as in the North Zone, amounts between 40-70 mm are estimated. In the mountains of the Caribbean, in addition to the center and west of the Central Valley, showers and isolated showers are expected. accumulated between 20-40 mm.
Tropical wave # 19 is located at this time over Panama, its arrival is estimated between late hours of this Saturday night until Sunday morning, which can generate rains in said periods in the province of Limón, North Zone, especially near the coast and border sector. On the Pacific Slope, the heaviest rainfall will occur in the afternoon and early in the evening, mainly in the South Pacific and Central Pacific regions. On the other hand, in the Central Valley it would perceive weak rains in the mountains to the north in the morning; and isolated afternoon showers in the west of the region.
Warning: High levels of soil saturation in the Central Pacific, South Pacific, North Zone and, special attention.
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.
- Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the Website: www.imn.ac.cr
Rebeca Morera R
Meteorologist
DMSA-IMN
