Miami is starting Sunday mostly clear and already warm, with the overnight low holding near 83°F and a sunny high near 89°F on tap — but with heat index values climbing as high as 105°F, this is a day to plan around the heat, not just around the clock.
Today’s Setup
The National Weather Service Miami office has a Heat Advisory in effect from late morning into the early evening for the Miami-Dade and Broward metro, with a Moderate HeatRisk across the eastern half of South Florida. High pressure over the Atlantic is keeping a steady east wind around 13 mph (gusts to 18 mph) in place, and the afternoon sea breeze could spark a slight chance of showers and thunderstorms between 8 AM and 5 PM ET — about a 20% chance, focused more over the interior and Southwest Florida than right along the coast.
Best Window To Be Outside
Mornings are your friend today. If you’re headed to Key Biscayne, South Beach, or out toward the Everglades, get out early before the heat index peaks in the afternoon. Golfers should aim for an early tee time — clear skies and light wind make for a great front nine, but the back nine in mid-afternoon heat is rough on anyone without shade and water. Same logic applies to mowing the lawn or yard work: knock it out before 11 AM.
Rain, Wind, Fire, Or Heat Risk
The bigger story today isn’t rain — it’s heat and the ocean. Persistent easterly winds are keeping an elevated rip current risk along the Atlantic beaches, so swim near a lifeguard stand and know how to escape a rip current if caught in one. Heading out on the water for a Miami boating day? A West Marine ski vest life jacket deal at $15 is worth grabbing before you launch.
What To Wear Or Bring
Light, breathable clothing, sunscreen, and water are non-negotiable with heat index values this high. Anglers and anyone spending hours in direct sun should check out the UPF 50+ Sun Hoodie deal — cheap insurance against sunburn on a day like today.
Local Games And Events
The Miami Marlins host the Los Angeles Angels for a Kids Lunchbox game today at loanDepot Park — get there early and pack water for the heat. Deep Purple with special guest Kansas plays Hard Rock Live tonight, and 5 Seconds of Summer brings the EVERYONE’S A STAR! World Tour to Hard Rock Live on Wednesday, August 12 — the same night Inter Miami CF faces Club León in Leagues Cup action at Nu Stadium. Grab tickets on SeatGeek or Find tickets on StubHub, and check out Official team gear on Fanatics before kickoff.
Dinner Tonight
With sun and warmth sticking around into the evening, it’s a good night to fire up the grill — burgers, steaks, or grilled chicken with corn on the cob all work well. An instant-read meat thermometer takes the guesswork out of doneness, and a grill brush and scraper set keeps grates ready to go. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Monday looks nearly identical — sunny, a high near 90°F, and heat index values as high as 106°F, with only a slight 7% rain chance. Expect the same daily pattern into the work week: warm mornings, an afternoon sea breeze, and heat as the main hazard rather than storms.
