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-150125-10.50am
Jan
15
Weather Warning
Strong gusts in the center and north of the country this Wednesday
January 15, 2025
10.50 a.m.
Diagnosis: The increase in atmospheric pressure over the Central American region and the Caribbean Sea causes an increase in the intensity of the trade wind over the center and north of the country, strong gusts have been recorded that have reached values between 65-95 km/h in places such as Liberia, Irazú volcano, Cerro Buenavista and Santa Ana, to name a few. As well as variable rains in the Caribbean, Northern Zone and the GAM, with accumulations between 30 to 50 mm.
Forecast: Throughout today and tomorrow, very windy conditions are expected to continue in the center and north of the country. Maximum gusts are expected to be in the range of 50-75 km/h for the Central Valley and lower parts of Guanacaste, as well as values between 75-100 km/h for northern Guanacaste and the Talamanca mountain ranges. As for rainfall, a decrease in precipitation is expected in the evening. However, scattered showers may occur at the end of the afternoon in the South Pacific, as well as occasional rain in coastal areas at the beginning of the night in the Central Pacific.
Warning: Pay special attention to gusts of wind in the mountainous areas and in the north of the North Pacific and in the Central Valley.
Due to the above, the IMN recommends: • Prevention against gusts of wind and their possible damage to roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country and Guanacaste (national parks, volcanoes). • Caution in air navigation due to increased turbulence, as well as in maritime navigation due to increased rough seas, especially in the North Pacific, Gulf of Nicoya and northern Central Pacific. • Avoid fires of any kind, as they can get out of control. • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB page: www.imn.ac.cr
Gabriela Chinchilla R Meteorologist DMSA-IMN
