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...
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...
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...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico IMN 290920 5am
Sep
29
Weather Warning
Rains of variable intensity this morning for coastal areas of the Pacific slope
September 29, 2020
05:00 am
Diagnosis: The proximity of low pressure areas typical of the Intertropical Convergence Zone in both maritime regions bordering Costa Rica, are increasing atmospheric instability, causing rains of variable intensity in coastal areas of the Pacific slope. Specifically in the Nicoya Peninsula, Parrita, Quepos and the Osa Peninsula.
Forecast: During the rest of the morning and the first two hours of the day, the rains of variable intensity with an isolated electrical storm will continue on the coasts of the South Pacific, Central Pacific and the Nicoya Peninsula with amounts of 10 - 20 mm. On the Caribbean slope, there is an average probability of weak to moderate rains for said period. Amounts less than 15 mm.
Due to the above, the IMN recommends:
• Caution in areas vulnerable to flooding due to sewerage saturation.
• Take shelter in a safe place in the event of an electrical storm.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr
J. Pablo Valverde M.
Meteorologist
DMSA-IMN
