Miami woke up in a sweat Sunday, with temperatures already in the mid-80s and thick humidity making it feel even hotter than the numbers on the thermometer. A Heat Advisory is in effect for Sunday, July 12, 2026, with the main danger window from late morning into early evening. With little coastal rain expected, air conditioning and shade will be the most reliable ways to cool down if you need to be outside.
Afternoon Heat And Forecast
Afternoon highs are expected to top out near 91°F with east winds around 7-10 mph. Heat index values are projected to climb into the mid-100s, making it feel like 105-106°F during the advisory hours of 11 a.m.-7 p.m. Inland neighborhoods will run the hottest, and prolonged outdoor exertion will increase the risk of heat illness. The advisory covers Miami-Dade and Broward counties, and forecasters are urging residents to take it seriously, according to NWS Miami.
Where To Cool Off
City and county cooling centers, libraries and community centers are open as options if your home does not have air conditioning. Miami-Dade maintains a searchable list and map of cooling sites and hydration resources. For specific locations and hours, visit Miami-Dade County. Outdoor workers are advised to take frequent water breaks, rest in the shade and schedule the heaviest tasks for early morning or after sunset when possible.
Short-Term Outlook
The hot pattern is expected to stick around into early next week, with daily highs in the low 90s and repeated heat index readings above 105°F. That means additional heat advisories are possible on multiple afternoons. A plume of Saharan dust has lowered coastal rain chances for now, although interior afternoon showers remain a small possibility later in the week.
