Pool season · California
Redondo Beach Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Redondo Beach pool. The season bar below draws everything the model knows — opening window, prime season, closing window — against today's date, with the working details one click away on the opening and closing pages.
Each dot on the bar is one week of Redondo Beach's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (April 10–May 1), solid teal is swim season, and hollow amber is the closing window ending November 25. The black marker is today — its position against the colors is the entire executive summary.
The Redondo Beach pool calendar
Opening — target April 17
Target April 17; the practical window runs April 10–May 1, and the 7-day mean crosses the 61°F threshold around May 1. Cold-water starts are the cheap ones.
Closing — deadline November 25
Hold the cover until November 15, then winterize by November 25, a week ahead of the January 5 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Redondo Beach'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57° | 57° | 57° | 59° | 61° | 64° | 67° | 70° | 70° | 67° | 63° | 58° |
The curve peaks near 70°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Redondo Beach hits the closing window
Data: NOAA 1991–2020 climate normals via Redondo Beach (1.6 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.