Pool swim season in Cutler Bay, FL
Swim season in Cutler Bay without a heater, and with one
An unheated pool in Cutler Bay reaches 78°F in May to Oct, about 6 months a year. The air allows up to 12 swimmable months with a heater (all year).
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What each heater buys you in Cutler Bay
| Option | Months | Swimmable | Energy/yr | All-in/yr |
|---|---|---|---|---|
| No heater | 6 | May to Oct | $0 | $0 |
| Solar cover only | 8 | Apr to Nov | $0 | $50 |
| Solar panels + cover | 12 | all year | $0 | $283 |
| Heat pump + cover | 12 | all year | $162 | $712 |
| Gas heater + cover | 12 | all year | $559 | $984 |
For a 450 sq ft pool held at 80°F, at FL prices of 15.3¢/kWh electricity and $25/Mcf gas. All-in spreads the purchase over the equipment's life.
The cheapest way to the full season in Cutler Bay
Solar panels + cover: 12 of 12 possible months for about $283 a year all-in, which works out near $47 for each month it adds.
Before you pay for any heater, buy a solar cover: on its own it adds 2 months here for about $50 a year (why a cover comes first). If you get quotes, ask for a heat pump sized to your pool's surface area; here it beats gas all-in (heat pump or gas).
Weather station: Perrine 4W, 6.4 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Cutler Bay month by month: air, sun and pool water
| Month | Air high | Air avg | Sun kWh/m²/day | Water, unheated | Water, covered | Heat pump $ | Gas $ |
|---|---|---|---|---|---|---|---|
| Jan | 76° | 66° | 3.7 | 68° | 74° | $57 | $192 |
| Feb | 78° | 67° | 4.5 | 68° | 74° | $52 | $180 |
| Mar | 80° | 70° | 5.5 | 71° | 77° | $24 | $86 |
| Apr | 84° | 73° | 6.2 | 75° | 81° | – | – |
| May | 86° | 77° | 6.2 | 78° | 84° | – | – |
| Jun | 89° | 80° | 5.7 | 81° | 87° | – | – |
| Jul | 90° | 81° | 5.9 | 84° | 90° | – | – |
| Aug | 90° | 82° | 5.6 | 84° | 90° | – | – |
| Sep | 89° | 81° | 5.0 | 83° | 89° | – | – |
| Oct | 86° | 78° | 4.5 | 81° | 87° | – | – |
| Nov | 81° | 72° | 3.9 | 76° | 82° | – | – |
| Dec | 78° | 68° | 3.4 | 71° | 77° | $29 | $101 |
Heating costs most in Jan (about $57 with a heat pump, $192 with gas). Sunshine peaks in May at 6.2 kWh/m²/day (NASA satellite data, 18.7 km grid cell). Highlighted months are swimmable with no heater.
How Cutler Bay compares with nearby cities
Cutler Bay ranks 114 of 173 Florida cities for unheated swim months; Palmetto Bay, Pinecrest, Coral Gables nearby get a longer season without a heater.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| Palmetto Bay, FL | 3 mi | 7 | 12 | $47 |
| Pinecrest, FL | 6 mi | 7 | 12 | $47 |
| Coral Gables, FL | 9 mi | 7 | 12 | $47 |
| South Miami, FL | 9 mi | 7 | 12 | $47 |
| Homestead, FL | 10 mi | 6 | 12 | $134 |
| Florida City, FL | 12 mi | 6 | 12 | $134 |