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4 clusters · 9 sources · 8 days · First seen · Last updated
Extreme heatwaves and Meganiño risks in Peru
Overview
The National Service of Meteorology and Hydrology (Senamhi) has issued several red alerts for extreme heat across Peru, linked to the El Niño Costero phenomenon. Between October 4 and 6, a red alert targeted eight regions—Amazonas, Cajamarca, Huánuco, Loreto, Madre de Dios, Pasco, San Martín, and Ucayali—with temperatures reaching up to 38°C. This period also saw warnings for increased ultraviolet radiation and wind gusts of approximately 55 km/h. From October 10 through October 13, alerts expanded to include 20 regions, including Lima and Callao, with temperatures on the northern coast expected to reach 36°C. In early October 2026, Senamhi issued a red alert for 21 regions, including Áncash, Arequipa, Ica, Junín, La Libertad, Lambayeque, Piura, Puno, Tacna, and Tumbes, forecasting temperatures up to 35°C on the northern coast and wind gusts of 40 km/h. By late October 2026, a new red alert was declared for eleven regions, including Cusco and Junín, as daytime temperatures were expected to approach 40°C between October 24 and October 26. This heatwave is accompanied by extreme solar radiation and wind gusts up to 55 km/h in the Amazon. Simultaneously, Senamhi warned of heavy rainfall, hail, and electrical discharges affecting the northern coast and highlands, specifically Piura, Tumbes, Lambayeque, and La Libertad. Minister of Agrarian Development and Irrigation Marco Vinelli has confirmed the country faces a ‘Meganiño’ event. President Keiko Fujimori has warned of a dramatic Meganiño, prompting the government to implement mitigation measures such as cleaning riverbeds and preparing field hospitals. While the north faces heavy rains, the southern sierra may experience water deficits affecting agriculture. As of late October 2026, the situation in Peru has escalated with the Peruvian army being mobilized in Piura to evacuate urban sectors affected by flooding.
Entities
Timeline
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[INTERNATIONAL] 4 sourcesPeru issues red alert for heat across 20 regions
Senamhi has issued a red alert for 20 Peruvian regions, including Lima, due to rising temperatures and high UV radiation expected through October 13.
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[INTERNATIONAL] 4 sourcesSenamhi issues weather alerts for high temperatures and UV radiation in Peru
Senamhi has issued weather alerts for Peru, warning of extreme temperatures up to 35°C and dangerous UV radiation in the northern coast and highlands through October 9, 2026.
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[INTERNATIONAL] 5 sourcesSenamhi issues red alert for extreme heat in Peru
Senamhi has issued a red alert for extreme heat up to 38 °C in eight Peruvian regions. Forecasts for the October 4 elections include high UV radiation, wind gusts, and heavy rain in northern coastal areas.
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[INTERNATIONAL] 2 sourcesSenamhi issues red alert for heatwave across 21 Peruvian regions
Senamhi has issued a red alert for 21 Peruvian regions, warning of an extreme heatwave with temperatures up to 35°C and wind gusts of 40 km/h through October 5.
Sources
bolivia.com · capital.pe · caretas.pe · diariocorreo.pe · diarioprimicia.com · larepublica.pe · nuevodia.com.ve · pachamamaradio.org · rpp.pe
This summary has been updated 8 times: see revision history