During the 2025 hot season, Yucatán recorded 89 cases of health damage due to extreme temperatures, positioning itself as the state with the most cases in the region, according to the weekly report of the General Directorate of Epidemiology of the federal Ministry of Health.
The report corresponding to epidemiological week 44, with a cut-off date of November 5, 2025, details that of the 89 state cases, 71 were heat strokes, 12 were dehydration and six were burns. The state reported no deaths from these causes.
In the context of the Yucatan Peninsula, Quintana Roo was second, registering 66 cases—50 heat strokes, six dehydrations and 10 burns—with four associated deaths.
The SSA report highlights that that state accounted for 21.3% of all burns reported nationwide.
Campeche presented the lowest number of cases with 16, all classified as dehydration, with no records of heat stroke or burns.
The Peninsula accumulated 171 cases, which represents 9.6% of the national total of 1,786 affected. Of them, 817 were due to dehydration, 922 due to heat stroke and 46 due to burns.
In Mexico, the hot season left 86 deaths: 85 from heat stroke and one from dehydration, with a cumulative fatality rate of 4.81%.
Regarding cases in the country, Sonora led with 411 cases and 31 deaths, followed by Baja California Sur with 125 cases and Tabasco with 118.
Yucatán was eighth and Quintana Roo closed the “top ten” of entities with the highest cases due to extreme temperatures. Campeche ranked 21st of the 28 entities in which high temperatures wreaked havoc.
However, in last year’s hot season Yucatán showed a significant drop of 64%, going from 245 cases in 2024 to 89 in 2025.
Last year, the state presented 207 cases of heat stroke, 36 of dehydration and two of burns. The above placed it in position six of the states with the highest cases.
Quintana Roo presented a significant climb in the list, as it went from 18th place in 2024 to tenth in 2025. Last year it reported 62 cases (four less than this year), of which 36 were heat strokes, 11 dehydration and 15 cases of burns.
Campeche settled in 25th place out of 30 entities in which there were affected by high temperatures, with 27 cases (nine of heat stroke, 17 of dehydration and one of burns).
Furthermore, 2024 was a tragic year for Yucatán when it registered 18 deaths from heat stroke, ranking seventh among the entities with the most deaths.
There were practically twice as many cases as Quintana Roo, which reported 10 deaths (nine from heat stroke and one from dehydration). Campeche only recorded one death due to heat stroke.— DANIEL VALDEZ CETZ
At a glance
Temperatures
According to the average records of Conagua and the National Meteorological Service, the average maximum temperatures per month for Yucatán were the following: January (29.4 degrees), February (32 degrees), March (33.8 degrees), April (34.6 degrees), May (37.6 degrees), June (35.4 degrees), July (35.3 degrees), August (35.1 degrees), September (34.5 degrees) and October (32.8 degrees).
extreme heat
On some days there were temperatures that exceeded 40 degrees, as happened last May.