Clear Friday with an 87.0°F Gulf average.

Siesta Key weather and Gulf conditions

Recorded National Weather Service KSRQ observations ranged from 71.6°F to 86.0°F, with clear conditions at the final observation. NOAA/NDBC station 42013 measured Gulf water from 86.9°F to 87.4°F, averaging 87.0°F across 48 half-hour readings. Check the National Weather Service Tampa Bay surf-zone forecast, posted beach flags and lifeguard guidance before swimming.

High: 86°F · Low: 72°F · Gulf water: 87.0°F

Recorded air temperature and conditions are from the September 25 National Weather Service KSRQ observations. Gulf water is the September 25 average from 48 NOAA/NDBC station 42013 readings; beach hazards are from the National Weather Service Tampa Bay surf-zone forecast.

Use the sunny window and stay hydrated.

Use the clearest part of the day for swimming and sand time, carry water and plan a shaded or air-conditioned break during the warmest stretch. Check posted beach flags and lifeguard guidance before entering the water.

Keep the island loop easy in the sun.

Siesta Free Ride can connect the beach, Village, restaurants and your hotel without another parking search, so your group can cool down between stops.