Weather warnings

Jul

06

Aviso Meteorológico

Efectos de la onda tropical #13 en el país este domingo y lunes

06 de julio de 2025
11.25 am

Diagnóstico: La onda tropical #13 se localiza este domingo al oeste de Panamá, generando inestabilidad en el mar Caribe frente a la costa costarricense, lo que favorece lluvias en el Caribe Sur...

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Jul

01

Weather Warning

Rainy conditions in the Caribbean and Northern Zone this Tuesday and Tropical Wave #12

Jul 01th, 2025
10 am

Diagnosis The strengthening of the trade winds over the central and northern regions of the country has produced wind gusts of up to 50 km/h in areas such as Alajuela this morning. This...

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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...

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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,...

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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...

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Aviso Meteorológico-IMN-291220-1045am

Dec

29

Weather Warning

Rainfall on this day in different parts of the country - Moderate winds in the North Pacific and Central Valley

December 29, 2020
10.45 a.m.

Discussion: Atmospheric pressure remains high over the Caribbean Sea, a situation that generates moderate trade winds towards our country, with greater perception in Guanacaste, the gusts have reached up to 79 km/h in La Cruz, as well as in the Central Valley with maximums of 59 km/h in Cerro Chitaría. The windy pattern generates moisture drag from the Caribbean Sea to the province of Limón and the North Zone, causing cloudiness and rain in these sectors, the amounts are less than 15 mm in the last 6 hours.

Forecast: Moderate wind gusts will persist in the north and center of the national territory, speeds are estimated between 60-80 km / h in the north of Guanacaste; in the Central Valley and the lower parts of the North Pacific ranges between 40-60 km / h.

Regarding rainfall, intermittent rains are expected in the Northern Zone and in an isolated manner in the Caribbean, amounts between 10-30 mm; As the evening period passes, it is estimated that cloudiness and rainfall decrease in these regions. On the other hand, in the Central and South Pacific, the entry of humidity is expected and, in combination with the warm morning temperatures, generate cloudy developments, enhancing rains and downpours during the afternoon and early hours of the night, accumulated between 30-60 mm.

Warning: Special attention in the North Pacific, the Central Valley and the mountain ranges of the country due to gusts of wind. As well as the Central and South Pacific with heavy downpours.

Due to the above, the IMN recommends:

  • Caution in areas vulnerable to flooding due to flooding of rivers and streams, as well as in areas prone to landslides.
  • Prevention of gusts of wind and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
  • 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


By Rebeca Morera 12/29/20 12/29/20 12/29/20