News Summary
San Antonio is preparing for an extreme heat wave starting Tuesday, with temperatures rising to nearly 105 degrees. A heat advisory is in effect, urging residents to take safety precautions amid the hot conditions expected to persist throughout the week. Officials emphasize the need for hydration and limited outdoor activities as the city faces unprecedented heat levels. Nearby areas may reach even higher temperatures, increasing risks for heat-related illnesses among vulnerable populations. Local authorities are providing resources to keep residents cool and safe during this challenging weather event.
San Antonio, Texas is bracing for an intense heat wave expected to begin on Tuesday, May 12, 2025, with temperatures soaring to record-breaking highs. The latest forecasts indicate that the temperatures may reach as high as 105 degrees, marking one of the hottest May periods on record for the region.
A heat advisory has been issued for San Antonio and surrounding areas, covering both Tuesday and Wednesday. Meteorological experts predict that Wednesday, May 14, will see temperatures peak at nearly 105 degrees, positioning the city among the hottest metropolitan areas globally, surpassed only by certain desert regions.
The relentless heat is attributed to a strong ridge of high pressure that has settled over South Texas, originating from Mexico. This phenomenon is expected to keep conditions sweltering, with daily highs forecasted to remain in the 100s through Thursday and Friday, only easing slightly to around 100 degrees as the weekend approaches.
Officials are stressing the importance of caution during this extreme heat wave, particularly since the region has recently experienced cooler weather. Residents are reminded to stay hydrated, dress in light clothing, and limit outdoor activity, especially during peak hours when the sun is most intense.
In addition to the anticipated high temperatures in San Antonio, other nearby cities such as Encinal and Cotulla may reach extreme highs of up to 113 degrees. These conditions present substantial risks for heat-related illnesses, especially for vulnerable populations such as children, the elderly, and individuals with outdoor jobs.
Safety Measures and Recommendations
The risk of heat-related illnesses is notably high. Residents are advised to be vigilant for symptoms of heat exhaustion—which can manifest as dizziness, weakness, and nausea—and heatstroke, characterized by a body temperature exceeding 104 degrees. In response to the heat wave, local authorities will be providing a map and a list of cooling locations across San Antonio to help residents escape the extreme temperatures.
Historical Context
Looking at historical data, while elevated temperatures in May can foreshadow a hot summer, there is no absolute correlation that guarantees prolonged heat throughout the season. Factors contributing to current weather patterns indicate that while the region is currently experiencing a significant spike in temperature, it could potentially stabilize as the summer progresses.
The National Weather Service reports that extreme heat is the deadliest weather-related hazard in the United States, claiming more lives than hurricanes or tornadoes each year. Residents are urged to prioritize their safety and the safety of others during this challenging weather event.
As South Texas prepares for the heat wave, residents are encouraged to check on neighbors, especially those who may require additional support, such as the elderly or those with mobility challenges. Clear communication and readiness can mitigate the risks associated with extreme weather conditions.
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Additional Resources
- KSAT Weather
- Wikipedia: Heat wave
- News 4 San Antonio
- Google Search: San Antonio Heat 2025
- Express News
- Google Scholar: Extreme Heat Effects
- Fox Weather
- Encyclopedia Britannica: Weather Patterns
- Kens 5
- Google News: South Texas Heat Wave
Author: STAFF HERE SAN ANTONIO WRITER
The SAN ANTONIO STAFF WRITER represents the experienced team at HERESanAntonio.com, your go-to source for actionable local news and information in San Antonio, Bexar County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as Fiesta San Antonio, San Antonio Stock Show & Rodeo, and Dia de los Muertos. Our coverage extends to key organizations like the Greater San Antonio Chamber of Commerce and United Way of San Antonio and Bexar County, plus leading businesses in retail, insurance, and energy that power the local economy such as H-E-B, USAA, and Valero Energy. As part of the broader HERE network, including HEREAustinTX.com, HERECollegeStation.com, HEREDallas.com, and HEREHouston.com, we provide comprehensive, credible insights into Texas's dynamic landscape.
