Weather warnings
May
08
Meteorological Warning Update
(Update) Showers and thunderstorms during the afternoon and early morningmeras horas de la noche
May 8, 2025
6:00 pm
Forecast: Rainy conditions have been observed this afternoon on the Pacific coast, much of the Central Valley, and mountainous areas of the Caribbean and the Northern Zone, due to the activity of...
May
08
Weather Warning
Showers and thunderstorms during the afternoon and early evening
May 08, 2025
10.30 a.m.
Discussion: The Intertropical Convergence Zone remains located over Costa Rica, generating significant moisture and instability. This, along with morning warming and the arrival of sea breezes,...
May
07
Aviso Meteorológico Actualización
(Actualización) Lluvias y aguaceros fuertes en el Valle Central y la vertiente del Pacífico
7 de mayo de 2025
6:20 pm
Diagnóstico: La Zona de Convergencia Intertropical sobre el país, en conjunto con factores locales como el calentamiento diurno y el ingreso de humedad desde el Océano Pacífico, favorecerá...
May
07
Weather Warning
Heavy rain and downpours in the Central Valley and the Pacific slope
May 7, 2025
09:35 a.m.
Diagnosis: The Intertropical Convergence Zone (ITCZ), combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, will favor variable rainfall throughout...
May
06
Weather Warning (Update)
Heavy showers this afternoon and early evening in the country
May 6, 2025
6:20 p.m.
Diagnosis: The proximity of the Intertropical Convergence Zone, combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, has favored heavy downpours...
Weather warnings history
In this section you will find the weather warnings history.
Weather Warning-IMN-250325-5:40 p.m.
Mar
25
Weather Warning
Variable rains in the Carribbean slope of the Country
March 25, 2025
5:40 p.m.
Diagnosis: The increase in moisture content throughout the beginning of this week in southern Central America continues, with steady cloud cover continuing into Tuesday in parts of the Caribbean and the Northern Zone. This translates into variable rainfall with accumulated rainfall since this morning ranging from 15 to 30 mm, with highs of 51 mm in parts of the Virgen de Sarapiquí (Northeastern Zone). Meanwhile, in the Central and South Pacific, very localized downpours are developing, with point accumulations of 30 to 45 mm in Osa, Neily, and Pérez Zeledón. Locally, up to 70 mm in Coto Brus.
Forecast: Scattered rain and showers are forecast in parts of the Caribbean and parts of the Northern Zone during the late afternoon and evening hours, with 12-hour accumulations of 15 to 25 mm, with local highs of up to 60 mm. In the Pacific regions, rainfall is gradually decreasing in intensity, with accumulated rainfall of less than 30 mm over the next 6 hours.
Due to the above, the IMN recommends:
• Caution due to sewer saturation in areas prone to this type of flooding, as well as increased flow in rivers and streams.
• Prepare for thunderstorms and seek shelter in a safe place if strong wind gusts occur or are felt near storm clouds, due to the possible fall of tree branches, power lines, among other things. These gusts can reach 80 km/h in some isolated cases.
• Stay informed through social media: Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR, and the website www.imn.ac.cr
Jose Valverde Mora
Meteorologist
DMSA/IMN
