Weather warnings

Weather Warning-IMN-260625

Jun

26

Weather Advisory

Variable intensity rainfall expected this afternoon, in the Pacific and North Zone

June 26th, 2025

9:50 a.m.

Diagnostic: Tropical Wave 9, located in the Pacific near the country, is still unstable in its surroundings. Along with the Intertropical Convergence Zone over southern Central America, it will generate rain and thunderstorms this afternoon across the country.

Forecast: During the afternoon, showers accompanied by thunderstorms are expected throughout the Pacific mountain range and central parts of the country, in the Central Valley and the Northern Zone. Following the showers and thunderstorms, rain will spread and linger in other surrounding regions and low-lying parts of the Pacific (also with more scattered showers and thunderstorms). Accumulated rainfall over 6- to 12-hour periods is expected to range from 25 to 50 mm, with maximums between 70 and 95 mm (the latter mainly towards the north-central part of the country - Northern Zone and Northern Pacific). Showers with possible thunderstorms are also estimated, more scattered, over the mountains of the North and South Caribbean. Estimated amounts range between 15 and 40 mm, with localized maximums of up to 80 mm.

⚠️ Warning: Soils remain highly saturated (95-100%) in the Northern Zone and in mountainous areas of the North Caribbean (places such as Sarapiquí, San Carlos, Los Chiles, Upala), as well as in the mountains of the Central-South Pacific (Valle del General, Buenos Aires, Coto Brus, Potrero Grande), increasing the risk of landslides and flooding in these areas. High saturation (65-85%) is also reported in the Nicoya Peninsula, areas near the Golfo Dulce, and the central-northeastern North Pacific.

Due to the above, the IMN recommends:

• Caution due to possible sewer saturation in areas prone to flooding due to water accumulation.

• Thunderstorm prevention: If strong wind gusts occur or are perceived near storm clouds, it is recommended to seek shelter in a safe place, as tree branches, power lines, or other objects could fall. These gusts can reach up to 80 km/h in isolated cases.

• Stay informed through official channels:

Twitter: @IMNCR
Facebook: Instituto Meteorológico Nacional CR
Web site: www.imn.ac.cr

Meteorologist

Jose Valverde Mora

DMSA-IMN

6/26/25 6/26/25 6/26/25 By Meteórologo de Turno

Weather warnings history

In this section you will find the weather warnings history.

Jun

28

Weather Warning

Tropical Wave #10 over Costa Rica

June 28th, 2025

10:30 a.m.

Diagnosis: Tropical wave #10 is over the country this Saturday, causing instability in maritime areas of the Caribbean and northern parts of the Northern Zone. There has been increasing...

Jun

27

Weather Warning -Update-

Rainy Afternoon in Costa Rica

June 27th, 2025

05.40 p.m.

Forecast: After the passage of Tropical Wave 9 yesterday, Thursday, the atmosphere remains unstable over the country. Along with warm morning temperatures and high humidity from recent rains,...

Jun

27

Weather Warning

Tarde lluviosa en Costa Rica

June 27th, 2025

10:00 am

Diagnosis: After the passage of tropical wave #9 on Thursday, the atmosphere continues to be unstable over the country, which, together with the warm temperatures of this morning and the high...

Jun

26

Weather Warning | Update

Rainfall activity of varying intensity this afternoon in the Pacific and Northern Zone

June 26, 2025

5:00 p.m.

Diagnostic: The passage of Tropical Wave #9, in combination with the Intertropical Convergence Zone, maintains atmospheric instability over the country. This has generated rain showers and...

Jun

26

Weather Advisory

Variable intensity rainfall expected this afternoon, in the Pacific and North Zone

June 26th, 2025

9:50 a.m.

Diagnostic: Tropical Wave 9, located in the Pacific near the country, is still unstable in its surroundings. Along with the Intertropical Convergence Zone over southern Central America, it will...

Jun

25

Weather Warning -Update-

Variable Intensity Rainfall Expected This Night

June 25th, 2025

5.10 pm

Diagnosis: Following the passage of strong Tropical Wave #8 on Tuesday, this Wednesday is expected to bring a return to more typical rainy season conditions. Today's rainfall is mainly...

Jun

25

Weather Advisory

Variable Intensity Rainfall Expected This Afternoon

June 25, 2025

10:00 am

Diagnosis: Following the passage of strong Tropical Wave #8 on Tuesday, conditions are expected to return to a more typical rainy season pattern this Wednesday. Today's rainfall will be mainly...

Jun

24

Weather Warning -Update-

Tropical wave #8 over Costa Rica

June 24th, 2025

04:50 p.m.

Diagnosis: The instability of Tropical Wave 8 has manifested itself with scattered heavy rains and downpours in various locations in the central and Pacific regions of the country. Rainfall with...

Jun

24

Weather Warning

Tropical wave #8 over Costa Rica

June 24th, 2025

10:15 a.m.

Diagnosis: The axis of Tropical Wave #8 entered the country in the early hours of Tuesday. This system has caused cloud incursions toward the northern Caribbean border regions with Nicaragua....

Jun

23

Aviso Meteorológico

Condiciones lluviosas fuertes este lunes en el país y tren de ondas para la semana

23 de junio de 2025

09.45 a.m.

Diagnóstico: Luego del paso de la onda tropical #7 por nuestro país este domingo, la Zona de Convergencia Intertropical se encuentra robusta y bien organizada sobre el sur de Centroamérica. Esta...

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