Pool swim season in Hinesville, GA
Hinesville, GA: how long the pool season really is
An unheated pool in Hinesville reaches 78°F in Jun to Sep, about 4 months a year. The air allows up to 9 swimmable months with a heater (Mar to Nov).
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What each heater buys you in Hinesville
| Option | Months | Swimmable | Energy/yr | All-in/yr |
|---|---|---|---|---|
| No heater | 4 | Jun to Sep | $0 | $0 |
| Solar cover only | 6 | May to Oct | $0 | $50 |
| Solar panels + cover | 7 | Apr to Oct | $0 | $283 |
| Heat pump + cover | 9 | Mar to Nov | $283 | $833 |
| Gas heater + cover | 9 | Mar to Nov | $719 | $1,144 |
For a 450 sq ft pool held at 80°F, at GA prices of 15.5¢/kWh electricity and $20/Mcf gas. All-in spreads the purchase over the equipment's life.
The cheapest way to the full season in Hinesville
Heat pump + cover: 9 of 9 possible months for about $833 a year all-in, which works out near $167 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: Ft Stewart, 3.3 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.
Hinesville 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 | 63° | 52° | 3.0 | 53° | 59° | – | – |
| Feb | 67° | 55° | 3.6 | 54° | 60° | – | – |
| Mar | 73° | 61° | 4.8 | 60° | 66° | $135 | $337 |
| Apr | 79° | 67° | 5.9 | 67° | 73° | $60 | $164 |
| May | 85° | 74° | 6.5 | 74° | 80° | – | – |
| Jun | 89° | 80° | 6.2 | 80° | 86° | – | – |
| Jul | 92° | 82° | 6.2 | 84° | 90° | – | – |
| Aug | 90° | 82° | 5.6 | 85° | 91° | – | – |
| Sep | 87° | 78° | 4.8 | 82° | 88° | – | – |
| Oct | 80° | 69° | 4.1 | 75° | 81° | – | – |
| Nov | 71° | 60° | 3.3 | 65° | 71° | $88 | $218 |
| Dec | 65° | 54° | 2.6 | 57° | 63° | – | – |
Heating costs most in Mar (about $135 with a heat pump, $337 with gas). Sunshine peaks in May at 6.5 kWh/m²/day (NASA satellite data, 37.4 km grid cell). Highlighted months are swimmable with no heater.
How Hinesville compares with nearby cities
Hinesville ranks 14 of 101 Georgia cities for unheated swim months, and no nearby city gets a longer unheated season.
| City | Distance | Unheated months | Heat pump months | Heat pump $/yr |
|---|---|---|---|---|
| Richmond Hill, GA | 18 mi | 4 | 9 | $309 |
| Jesup, GA | 23 mi | 3 | 9 | $423 |
| Savannah, GA | 28 mi | 4 | 9 | $312 |
| Pooler, GA | 28 mi | 4 | 9 | $312 |
| Garden City, GA | 31 mi | 4 | 9 | $312 |
| Port Wentworth, GA | 35 mi | 4 | 9 | $312 |