Weather warnings
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...
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...
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...
Jun
02
Aviso Meteorológico
Lluvias continuarán en las primeras horas de la noche
2 de junio de 2025
5:45 pm
Diagnóstico: Durante esta tarde, se han registrado fuertes aguaceros en gran parte territorio nacional, siendo el Valle Central la región con los mayores acumulados entre 40 mm y 50 mm, y los...
Jun
02
Weather Warning
Thunderstorms and showers this afternoon in the Pacific slope
June 02, 2025
10:30 a.m.
Forecast: High levels of available moisture, along with local factors such as sea breezes and rising temperatures in the early afternoon, will be the ingredients for afternoon rains this early...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-051020-am
Oct
05
Weather Warning
05 de octubre de 2020
10.30 a.m.
Discussion: Tropical storm Delta is located in the Caribbean Sea, 215 km south of Negril Jamaica. The position of this system is generating greater proximity of the Intertropical Convergence Zone to Costa Rica. The above, together with the warm morning temperatures, can cause rainy activity of variable intensity this afternoon and evening.
Forecast: For this afternoon and night rains of variable intensity and electrical storms are forecast in regions of the Pacific, Central Valley, North Zone and mountainous sectors of the Caribbean, amounts between 30-60 mm are estimated, higher accumulated are possible in a specific way.
The tropical storm Delta will be causing an indirect influence which will persist at least until Wednesday inclusive, a situation that would favor a greater recurrence of rainfall, especially in the Pacific (particularly the northern part).
Warning: Due to the rains of the last days there is an abundant level of soil saturation, special attention to the North and South Pacific regions, the North Zone (Sarapiquí, Upala, mountainous areas adjacent to the Guanacaste Mountain Range).
Due to the above, the IMN recommends:
- Caution in areas vulnerable to flooding due to sewer saturation.
- Caution on the main national highways due to reduced visibility.
- Take shelter in a safe place in case of hearing an electrical storm or perceive strong gusts of wind near the storm clouds, as well as caution against 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
