Weather warnings

Jun

05

Weather Warning

Intertropical Convergence Zone over the country

June 5th, 2025
9:40 a.m.

Diagnosis: The Intertropical Convergence Zone is positioned over the country. This system, combined with high humidity, creates a favorable environment for rain and showers with thunderstorms...

See More


Jun

04

Aviso Meteorológico (Actualización)

Lluvias y aguaceros con tormenta para esta tarde (actualización)

4 de junio de 2025
5:00 pm

Diagnóstico: Las altas temperaturas registradas esta mañana, junto al aumento progresivo de la humedad en el ambiente, están generando condiciones atmosféricas favorecieron la formación de...

See More


Jun

04

Weather Warning

Rain and downpours with thunderstorms expected this afternoon

June 4th, 2025
9:55 a.m.

Diagnosis: The high temperatures recorded this morning, along with the progressive increase in humidity, are generating favorable atmospheric conditions for the formation of rain and showers with...

See More


Jun

03

Weather Warning (Update)

Favorable conditions for heavy downpours this Tuesday

03 de junio de 2025
06.10 p.m.

Discussion: Favorable atmospheric conditions for heavy rainfall are being recorded across the country this Tuesday. The high humidity from the recent rains and the high temperatures experienced...

See More


Jun

03

Weather Warning

Favorable conditions for heavy downpours on Tuesday

June 3th, 2025
10:00 a.m.

Forecast: Isolated showers with thunderstorms are expected along the Guanacaste and Central Volcanic mountain ranges, as well as the Central Pacific and South Pacific mountains, with estimated...

See More


Weather warnings history

In this section you will find the weather warnings history.

« Back

Aviso Meteorológico-IMN-040620-1020am

Jun

04

Weather Warning

Condiciones lluviosas en este jueves

June 04, 2020
10.20 a.m.

Discussion: This Thursday the very unstable atmospheric conditions continue over the country and surroundings, added to the constant contribution of humidity from the Pacific Ocean to the national territory, are factors that enhance the occurrence of rainfall of variable intensity.

Forecast: Around noon and during the afternoon, showers of varying intensity and heavy showers with an electrical storm are expected in the Pacific, Central Valley, North Zone and mountainous sectors of the Caribbean. Cumulative estimates are between 40-80 mm in the Pacific, 15-60 mm in the Central Valley, the Northern Zone and mountains of the Caribbean, ranges between 25-70 mm.

During the first part of the night period, rains and showers will be maintained in the North and Pacific Zone, to a lesser extent in the Central Valley and mountainous sectors of the Caribbean. In addition, fog banks are possible in the Metropolitan Area.

Warning: Special attention in these regions since they show high potential for intense rainy activity on this day: North, north of Guanacaste, mountains of the Caribbean and east of the Central Valley.
Due to the above, the IMN recommends:

  • Caution in areas with vulnerability to floods, even more so in sectors with recent rainy activity.
  • Take refuge in a safe place in case of listening to a thunderstorm or perceiving strong gusts of wind near storm clouds, as well as caution for possible falling 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

Rebeca Morera R
Meteorologist
DMSA-IMN