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.
Aviso Meteorológico-IMN-190220-0740am
Feb
19
Weather Warning
Windy conditions persist on this Wednesday
February 19, 2020
07.40 a.m.
Discussion: A large high-pressure system positioned in the Atlantic Ocean maintains high levels of atmospheric pressure on the Caribbean Sea, in turn causing a very strong windy pattern in the country. During the morning the gusts have been intense with maximums of 106 km/h in La Cruz de Guanacaste, in the lower parts of the province they range between 50-85 km/h; meanwhile in the Central Valley speeds range between 40-73 km/h.
Forecast: Windy conditions will prevail very strong on this day and on a recurring basis. Maximum speeds are estimated between 50-85 km/h in the Central Valley and the lower parts of the North Pacific, while speeds between 90-115 km/h are expected in the mountains of these regions.
Regarding rainfall, weak and isolated rains are expected in the Caribbean and the North Zone, especially during the morning and night, with accumulated between 5-20 mm. Rainfall is not expected in the rest of the country.
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 air navigation due to turbulence over the mountainous sectors.
- Avoid burning of all kinds as they can get out of control.
- Stay informed through social networks, Twitter: @IMNCR, Facebook: CR National Meteorological Institute and the Website: www.imn.ac.cr
Rebeca Morera R
Meteorologist
DMSA-IMN
