Pool season · Georgia
Mableton Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
Mableton's whole pool calendar, condensed: when the water warms, when it cools, and where today falls between those edges. Use the opening guide and closing guide for the step-by-step work; keep this page for the dates.
Mableton, GA — 104 swim days a yearThe bar compresses Mableton's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 30–April 20 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 25. Wherever the today marker sits, the nearest color change is your next appointment.
The Mableton pool calendar
Opening — target April 6
Open by April 6 — a two-week head start on the April 20 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 25
The window opens October 15 once water leaves the algae zone; the model deadline is October 25, a week ahead of the November 7 freeze normal.
Estimated water temperature by month
This is Mableton's typical-year water curve: the same EWMA model as the live widget, run on the 1991–2020 normals instead of this week's weather.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 43° | 44° | 50° | 57° | 64° | 71° | 76° | 76° | 74° | 66° | 56° | 48° |
The curve peaks near 76°F — comfortable-water months here usually involve a heater or a solar cover.
Every station tells its own story: compare this curve with Johns Creek's pool season and Macon's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Georgia season index.
Mableton pool season FAQ
When should I open my pool in Mableton, GA?
Open by April 6 — the model places Mableton's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Mableton opening guide has the 12-step sequence.
When should I close my pool in Mableton?
Close by October 25: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Mableton closing guide sequences the work backward from that date.
How long is the swim season in Mableton?
Mableton averages 104 days a year with normal highs of 80°F or better — about 9 days later than the Georgia median. The Georgia season index ranks all 18 covered cities by the same metric.
How warm does pool water get in Mableton?
An unheated pool near Mableton typically peaks around 76°F in high summer and bottoms out near 43°F in winter, never quite reaching the 78°F comfort line without a heater or solar cover. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when Mableton hits the closing window
Data: NOAA 1991–2020 climate normals via Mableton 1 N (2.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.