Following earlier winter alerts, Mexico City's government has issued orange and yellow cold alerts across all 16 boroughs for January 12—the first day back to school—due to Cold Front 27. Expect minimums of 1-6°C early morning, with emphasis on protecting children and the elderly amid ongoing national chill.
The Secretariat of Comprehensive Risk Management and Civil Protection activated alerts for intense early-morning cold on January 12, 2026, coinciding with school resumption. Orange alerts apply to Magdalena Contreras, Milpa Alta, and Tlalpan (1-3°C from 1-8 a.m.), while yellow covers the other 13 boroughs (4-6°C).
Authorities reiterated standard precautions from prior alerts: multi-layer clothing, avoiding temperature shocks, skin protection, vitamin-rich foods and hydration, sheltering pets, safe heater use, and medical help if needed—especially for children, elderly, and those with respiratory issues.
Overnight January 11, lows hit 3.2°C in Tlalpan's Ajusco Medio, 4.4°C in Cuajimalpa's Santa Fe, and 5.1°C in Gustavo A. Madero's Cuautepec. Cold Front 27 affects 24 states with frosts up to -15°C in Durango; a second winter storm may bring northern snow. The National Meteorological Service forecasts persistence through the week.
