Pool season · California
Oxnard Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Oxnard'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.
Each dot on the bar is one week of Oxnard'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 25–May 16), solid teal is swim season, and hollow amber is the closing window ending November 26. The black marker is today — its position against the colors is the entire executive summary.
The Oxnard pool calendar
Opening — target May 2
Target May 2; the practical window runs April 25–May 16, and the 7-day mean crosses the 61°F threshold around May 16. Cold-water starts are the cheap ones.
Closing — deadline November 26
The window opens November 16 once water leaves the algae zone; the model deadline is November 26, a week ahead of the December 28 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Oxnard's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 56° | 56° | 57° | 59° | 60° | 63° | 66° | 67° | 68° | 65° | 63° | 58° |
The curve peaks near 69°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Oxnard hits the closing window
Data: NOAA 1991–2020 climate normals via Oxnard (0.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.