Weather warnings

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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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...

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Aviso Meteorológico-IMN-020520-1000am

May

02

Weather Warning

Trade winds accelerated on this Saturday

May 02, 2020
10.00 a.m.

Discussion: The increase in atmospheric pressure over the Caribbean Sea generates the acceleration of trade winds towards our country, especially in the north and central part. The gusts have reached maximums in Guanacaste of 88 km/h in La Cruz, 72 km/h in Carrillo, 66 km/h in Santa Cruz; meanwhile in the Central Valley: 60 km/h in Ciudad Colón, 52 km/h in Cerro Chitaría, 56 km/h in Alajuela, 53 km/h in Pavas, among others.
The effect of the wind causes humidity to enter from the maritime zone towards the Caribbean and the North Zone, causing light rains, as well as drizzles in the mountainous Central Valley, the maximum accumulated accumulations are less than 20 mm.

Forecast: The windy pattern will continue strong throughout this Saturday, maximum gusts are estimated in the range of 70-90 km/h in the mountainous areas and northern Guanacaste and between 50-70 km/h for the Central Valley and lower part of Guanacaste.
Regarding rainfall, drizzles and isolated rains are expected during the morning in the Caribbean and North Zone, the rains can manifest again during the night, amounts between 10-20 mm. Drizzles are possible in the north of Guanacaste and in the mountainous sectors of the Central Valley and the vicinity with accumulations that do not exceed 5 mm. While in the Central and South Pacific rains and showers are expected with isolated thunderstorms during the afternoon period and the first hours of the night, with amounts between 25-50 mm.

Due to the above, the IMN recommends:

  • Take precautions for strong winds and their possible damage to roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
  • Caution for boats by rough sea and very strong waves in the North Pacific, Gulf of Nicoya, 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: Instituto Meteorológico Nacional CR and the WEBSITE: www.imn.ac.cr


Rebeca Morera R.
Meteorologist
DMSA-IMN

 


By Rebeca Morera 5/2/20 5/2/20 5/2/20