Weather warnings

Jul

10

Weather Warning

Tropical Wave 14 to Pass Over Costa Rica This Friday

July 10, 2025
04.30 p.m.

Discussion: A change in the weather pattern toward more humid and unstable atmospheric conditions over Costa Rica and surrounding areas will increase the occurrence of rainfall in various parts...

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Jul

08

Informative Weather Notice

Sahara dust over the country

July 08th, 2025
9:50 a.m.

Diagnosis: Increases in atmospheric pressure in the Caribbean Sea accelerate the trade winds over the basin, as well as over central and northern Spain. Furthermore, a dry, stable air mass...

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Jul

07

Weather Warning

Heavy downpours during the afternoon in the Pacific and northern regions

July 07th, 2025
10.40 a.m.

Discussion: Tropical Wave 13 is located in western Costa Rica, close to entering the Pacific Ocean. Although it is a weak wave, its interaction with the Intertropical Convergence Zone increases...

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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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Aviso Meteorológico-IMN-220220-10.30am

Feb

22

Weather Warning

Strong windy pattern persist over the country

February 22, 2020
10.30 a.m.

Diagnosis: The influence of the cold surge #20 has been perceived in the country since yesterday Friday, and even today Saturday continues to generate strong winds in the Central Valley, the North Pacific and the Cordilleras. Since midnight the gusts have been strong with maximums of up to 104 km/h in La Cruz de Guanacaste, while in the lower parts of the North Pacific they range between 40-70 km/h and in the Central Valley between 30-75 km/h. As for the rains, these have been very scarce in the Caribbean and the North Zone as well as in the rest of the country.

Forecast: The trade winds pattern is estimated to continue between moderate and strong. For Saturday today, maximum speeds are estimated between 40-80 km/h in the Central Valley and the lower parts of the North Pacific, while in the mountains of these regions speeds are predicted between 70-100 km/h.

For the remainder of this Saturday and on Sunday, the rains will be extremely scarce, some of these being located on the summits of the Central Valley and the North Pacific. Rainfall is not expected in the rest of the country.

It is estimated that the cold push maintains its influence in the country until Sunday inclusive.

Due to the above, the IMN recommends:

  • Extreme precautions due to strong winds and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
  • Caution for boats by choppy sea and very strong waves in the North Pacific, Gulf of Nicoya, Central Pacific and the Caribbean Sea, as well as air navigation due to turbulence over the mountainous sectors.
  • Avoid burning of all kinds as they can get out of control.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: CR National Meteorological Institute and the Website: www.imn.ac.cr

Eladio Solano León
Meteorologist
DMSA-IMN


By Eladio Solano 2/22/20 2/22/20 2/22/20