Pool season · California
South Gate Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of South Gate's pool year: both model windows, the estimated water-temperature curve, and today's live position on the season bar. The detailed checklists live on the opening and closing guides; this page is the calendar you check between them.
Each dot on the bar is one week of South Gate's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (February 21–March 14), solid teal is swim season, and hollow amber is the closing window ending December 3. The black marker is today — its position against the colors is the entire executive summary.
The South Gate pool calendar
Opening — target February 28
Open by February 28 — a two-week head start on the March 14 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline December 3
Hold the cover until November 23, then winterize by December 3, a week ahead of the January 2 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is South Gate'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 58° | 59° | 60° | 62° | 65° | 68° | 72° | 74° | 75° | 71° | 66° | 60° |
The curve peaks near 75°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when South Gate hits the closing window
Data: NOAA 1991–2020 climate normals via Los Angeles Dwtn Usc Campus (7.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.