Weather warnings
Jun
01
Weather Warning (Update)
Tropical Wave #4
Jun 01, 2025
5:50 p.m.
Forecast: Tropical Wave 4 is over Costa Rica this Sunday. In addition to the transit of this disturbance, we remain within the Intertropical Convergence Zone over our latitude, providing high...
Jun
01
Weather Warning (Update)
Tropical Wave #4
Jun 01, 2025
11.10 am
Diagnosis: is located over Costa Rica this Sunday. In addition to the transit of this disturbance, we remain within the Intertropical Convergence Zone over our latitude,...
May
31
Aviso Meteorológico (Actualización)
Lluvias variables en el país este sábado y onda tropical #4 mañana domingo
31 de mayo de 2025
5 pm
Diagnóstico: Este fin de semana la Zona de Convergencia Intertropical se muestra activa nuevamente frente al Pacífico costarricense; lo cual ha ocasionado aguaceros en el Pacífico Sur y eventos...
May
31
Weather Warning
Variable rains in the country this Saturday and tropical wave #4 tomorrow Sunday
May 24, 2025
11.40 am
Forecast: This weekend, the Intertropical Convergence Zone (ITC) is active again off the Costa Rican Pacific, causing downpours in the South Pacific and intermittent rain events in the Central...
May
30
Weather Warning
Variable morning rains this Friday in the Caribbean regions
May 30, 2025
7:30 a.m.
Diagnosis: High humidity levels in southern Central America, combined with instability in the upper troposphere in the region, have favored variable rainfall in the Caribbean and parts of the...
Weather warnings history
In this section you will find the weather warnings history.
Weather Warning
Nov
05
Weather Warning
Showers in the Central and North Pacific during the early morning
November 05, 2022
02:30am
Diagnosis: The proximity of the Intertropical Convergence Zone together with the presence of a low pressure system in the Southwest of the Caribbean Sea has been favoring unstable conditions over the country. Due to this, the formation of convective nuclei near the Pacific coast has caused, during Friday night and early Saturday morning, localized downpours in some coastal sectors in the Central and North Pacific regions of the national territory.
For the South Pacific, in the last 3 hours maximum accumulations of 38mm have been registered in Santa Cruz, 31mm in Nicoya and Orotina, while in the Central Pacific amounts of 30mm have been registered in Finca Damas. In addition, in the last 24 hours, maximum accumulations of 205mm have been recorded in San Mateo (Orotina), 187mm in Finca Damas, 156mm in Barú, 127mm in Mastate (Orotina), 125mm in Muelle Herradura, 95mm in San Ramón and 85mm in Las Esferas. of Osa and in Nicoya
Forecast: It is expected that the amounts accumulated in the next 6 hours for the Central and North Pacific will be between 30 - 80 mm, and there may be more intense rains in a timely manner, while in the South Pacific they will be between 20 - 40 mm. No significant rainfall is forecast for the rest of the country.
Warning: Special attention in the Central and North Pacific because they are the regions where the most intense rains are expected.
Due to the above, the IMN recommends:
• Caution due to sewage saturation and possible sudden flooding.
• Prevention before an electrical storm and seek refuge in a safe place in the event of strong gusts of wind appearing or being perceived near storm clouds, due to the possible fall of 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
Adriana Mora Perez
Meteorologist
DMSA-IMN
