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.
Informe meteorológico #1 Condiciones lluviosas en el Caribe y la Zona Norte
Jan
19
Meteorological Report
Rainy conditions in the Caribbean and the North Zone
January 19, 2020
6:00 pm
Forecast: During the night and early morning, intermittent rains of varying intensity between weak and moderate will be maintained on the Caribbean slope. For the whole part of the coastal part, maximum accumulations between 20-40 mm are anticipated in 12-hour periods, while in the mountainous parts, as well as in the North Zone, these are estimated at 10-30 mm. For the rest of the country drizzles are possible in the upper and nearby parts.
In addition, the moderate wind is expected to continue with occasional gusts in Guanacaste, the Central Valley and the mountain ranges with maximum intensities estimated between 40-60 km / h for the lowlands and between 50-80 km / h in the mountains.
It is expected that this Sunday the affectation of this system will be maintained, generating strong trade winds in the center and north of the national territory, as well as cloudy and rainy conditions in the Caribbean and the North Zone.
Special attention to areas with limitations to floods because due to the persistence of rain in the area during the last days the soils are saturated. Particular attention to the Banano, Colorado, Coen, Telire, Barbilla, Chirripó, Matina, Valle la Estrella and Reventazón rivers as they are reported to be grown, as well as to the Sixaola River that is reported overwhelmed in the sector known as Las Parcelas. It is recommended to be aware of the official communiqués of the National Emergency Commission, as well as of the official entities.
Next report today Sunday at 12 pm
Due to the above, the IMN recommends:
- Extreme precautions due to strong winds and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
- Caution for boats by choppy sea and very strong waves in the North Pacific, Gulf of Nicoya, Central Pacific and the Caribbean Sea, as well as turbulent air navigation over the mountainous sectors.
- Avoid burning of all kinds and that can get out of control.
- Caution in areas with flood limitations due to sewer saturation, increased flow in rivers and streams, and in areas prone to landslides.
- Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute and the Website: www.imn.ac.cr
Roberto Vindas
Meteorologist
DMSA-IMN
