Weather warnings
Aviso Meteorológico-IMN-190624-10.00am
Jun
19
Weather Warning
Rainy activity this evening
June 19, 2024
10.. a.m.
Diagnosis: Costa Rica continues to have a significant contribution of humidity from the Pacific Ocean during the early hours of the day, which, together with the daytime warming and the unstable conditions prevailing in the upper atmosphere in southern Central America, continue to favor a rainy environment in the country. This morning we have had rains and showers localized in the North Pacific, with amounts of 30 mm in La Cruz, 21 mm in Carrillo, 18 mm in Cañas and Bagaces, as well as amounts less than 10 mm in Paquera, Liberia, Palo Verde, Santa Cruz and Sardinal to name a few.
Forecast: For the afternoon and early evening we expect rainy activity to be localized in the north of the country, mainly in the North Zone and North Pacific with amounts between 50 and 80 mm. For the Central Pacific and South Pacific, the possibility of rains and showers with storms with amounts between 30 mm and 60 mm in periods of 6 hours remains. For the Central Valley and mountains of the Caribbean, intermittent rain events are expected throughout the evening period, with amounts between 10 mm and 40 mm in periods of 6 hours. There is a possibility of fog and mist at the end of the afternoon and at night, with drizzle in the early hours of the night.
Warning: The rains projected for urban areas may again be precursors to flooding and sewer saturation in already recurring areas. Saturated soils are monitored in the mountains of the South Pacific, Valle del General, the mountains of the North Caribbean and the North Zone, as well as both peninsulas and near the gulfs, which are regions vulnerable to landslides and possible flooding.
Due to the above, the IMN recommends: • Caution due to sewer saturation in places prone to this type of flooding. • Prevention against thunderstorms and seek shelter in a safe place if strong gusts of wind occur or are perceived near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach 80 km/h in some isolated cases. • 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
Weather warnings history
In this section you will find the weather warnings history.
May
24
Aviso Meteorológico
Precipitaciones este sábado en ambas costas del territorio nacional
24 de mayo de 2025
10:30 am
Diagnóstico: El ambiente húmedo en el que se encuentra el país junto a la instabilidad que genera la cercanía de la Zona de Convergencia sobre Costa Rica, facilita presenten lluvias desde la...
May
23
Weather Warning (Update)
Rain and thunderstorms expected this Friday
May 23, 2025
5:00 p.m.
Diagnosis: An increase in ambient humidity, coupled with the proximity of the Convergence Zone and local factors, have favored the presence of heavy downpours with thunderstorms in several parts...
May
23
Weather Warning
Rain and thunderstorms expected this Friday
May 23, 2025
10.00 a.m.
Discussion: An increase in ambient humidity, along with the proximity of the Convergence Zone and local factors such as breeze entry and morning warming, will facilitate cloudiness and...
May
18
Weather Warning
Scattered showers and thunderstorms this Sunday in recurring sectors
May 18, 2025
09:40 a.m.
Diagnosis: Local factors such as humid Pacific breezes and warm temperatures will favor scattered showers with thunderstorms this Sunday afternoon in areas where significant rainfall has occurred...
May
17
Weather Warning
Scattered heavy downpours with thunderstorms this Saturday
May 17, 2025
10:20 a.m.
Forecast: The passage of Tropical Wave 2, along with local factors such as humid breezes from both sides and warm temperatures, will favor scattered showers and thunderstorms this Saturday...
May
16
Aviso Meteorológico (Actualización)
Lluvias durante el final de la tarde del viernes
16 de mayo de 2025
4.30 p.m.
Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical y factores locales típicos de...
May
16
Aviso Meteorológico
Actividad lluviosa variable esta tarde de viernes
16 de mayo de 2025
11:00 am
Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical. A esto se suman factores...
May
15
Aviso Meteorológico (Actualización)
Aviso Meteorológico-IMN-150525-Condiciones lluviosas en esta tarde y noche (actualización)
15 de mayo de 2025
6:00 pm
Diagnóstico: La Zona de Convergencia Intertropical se encuentra próxima a Costa Rica y, junto con condiciones de inestabilidad en niveles altos de la atmósfera y factores locales, ha generado un...
May
15
Weather Warning
Rainy conditions this afternoon and evening
May 15, 2025
10.45 a.m.
Discussion: The Intertropical Convergence Zone near Costa Rica and instability in the upper atmosphere, along with morning warming, are contributing factors to the presence of cloudiness and...
May
14
Weather Warning (Update)
Instability after the passage of Tropical Wave #1
May 14, 2025
04.35 p.m.
Discussion: Atmospheric instability persists over Costa Rica following the passage of Tropical Wave #1 yesterday. This, along with activity associated with the Intertropical Convergence Zone...
