Pool swim season in Atlantic City, NJ

When can you swim in an outdoor pool in Atlantic City, NJ?

An unheated pool in Atlantic City never reaches 78°F in a normal year. It peaks around 78°F in Aug. The air allows up to 4 swimmable months with a heater (Jun to Sep).

1. J
2. F
3. M
4. A
5. M
6. J
7. J
8. A
9. S
10. O
11. N
12. D

What each heater buys you in Atlantic City

For a 450 sq ft pool held at 80°F, at NJ prices of 24.1¢/kWh electricity and $14/Mcf gas. All-in spreads the purchase over the equipment's life.

The cheapest way to the full season in Atlantic City

Solar cover only: 3 of 4 possible months for about $50 a year all-in, which works out near $17 for each month it adds.

Before you pay for any heater, buy a solar cover: on its own it adds 3 months here for about $50 a year (why a cover comes first). If you get quotes, ask for gas as well as a heat pump: once the purchase price is counted, gas comes out cheaper all-in here (heat pump or gas).

Weather station: Atlantic City Marina, 1.5 mi away (NOAA 1991–2020 normals). Water temperature is estimated from air and sunshine, not measured.

Atlantic City month by month: air, sun and pool water

Heating costs most in Jun (about $76 with a heat pump, $96 with gas). Sunshine peaks in Jul at 6.2 kWh/m²/day (NASA satellite data, 14.3 km grid cell). Highlighted months are swimmable with no heater.

How Atlantic City compares with nearby cities

Atlantic City ranks 70 of 116 New Jersey cities for unheated swim months; Pleasantville, Somers Point, Ocean City nearby get a longer season without a heater.