Beaches with warm water in Siesta Key

5 beaches scored for warm water in Siesta Key, from measured data with the source and date on every fact. Top score 6.7 of 10 at Sarasota Beach. That is 5 of the 5 ranked beaches in Siesta Key.

  • Scored5 beaches
  • 75 F or warmerApril to October
  • WhereSiesta Key
  • Top score6.7 of 10 at Sarasota Beach

5 beaches in Siesta Key with warm water. Ranked by warm water score, then Beach Score, updated Sep 10, 2026. Rankings reflect typical conditions, not today.

Sea temperature by month

Warmest in August at 89 F. 7 months at 75 F or more, April to October. Averaged over the 5 listed beaches.

  1. Sarasota Beach: sandy beach with turquoise water and dramatic cloudy sky#1
    Siesta Key, Florida
    Warm water6.7 of 10Mean sea temperature 78 F, 7 months at 75 F or more, April to October.
    Parking · Free parking · Sunset over waterView beach
  2. Cresent Beach: beach with sand dunes, beachfront condominium building, palm trees#2
    Siesta Key, Florida
    Warm water6.7 of 10Mean sea temperature 78 F, 7 months at 75 F or more, April to October.
    Parking · Sunset over water · Restaurants and barsView beach
  3. Siesta Beach: sunset over beach with swimmers and beachgoers in water and sand#3
    Siesta Key, Florida
    Warm water6.7 of 10Mean sea temperature 78 F, 7 months at 75 F or more, April to October.
    Parking · Lifeguards · BathroomsView beach
  4. Crescent Beach: people cycling and walking on sandy beach near ocean shore#4
    Siesta Key, Florida
    Warm water6.7 of 10Mean sea temperature 78 F, 7 months at 75 F or more, April to October.
    Parking · Sunset over water · Hotels nearbyView beach
  5. Siesta Key Beach: sandy beach with swimmers, beachgoers, turquoise water, coastal buildings#5
    Siesta Key, Florida
    Warm water6.7 of 10Mean sea temperature 78 F, 7 months at 75 F or more, April to October.
    Parking · Sunset over water · Hotels nearbyView beach
5 beaches
5

Compare beaches with warm water

BeachWarm water scoreMean sea temperatureParkingBeach Score
Sarasota BeachSiesta Key6.778 FYes6.6
Cresent BeachSiesta Key6.778 FYes6.1
Siesta BeachSiesta Key6.778 FYes5.6
Crescent BeachSiesta Key6.778 FYes5.3
Siesta Key BeachSiesta Key6.778 FYes5.3

How warm water works

Sea temperature lags the air by a month or two, so the warmest water comes in late summer and the coolest in late winter. A beach counts as warm water when at least six months average 24 C (75 F) or more, which is warm enough to swim without a wetsuit.

How we verify warm water

Scored from monthly sea surface temperature over the last three years of marine model data. Counts as warm when at least six months average 75 F (24 C) or more. Sources and methodology

Where in Siesta Key

All of the listed beaches are in Siesta Key.

Today in Siesta Key

Good beach day, 84 of 100

Wind up to 9 mph, waves up to 0.7 ft, 27% rain chance, high 88 F.

Wind, up to9 mph
Waves, up to0.7 ft
Rain chance27%
High88 F

Forecast at each area's centre from Open-Meteo, refreshed hourly; the rating rule is on the methodology page. The ranking below reflects typical conditions, not today.

When to go

Warmest sea: August at 89 F (32 C). Calmest water: July, mean daily maximum wave 1.1 ft. Fewest rain days: February, November, December.

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