Pool season · California
Santa Maria Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
One bar, one year, one Santa Maria 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.
Santa Maria, CA — 0 swim days a yearReading it takes ten seconds: 52 dots, one per week. Solid teal is Santa Maria's swim season; the hollow teal run before it (May 22 to June 12) is when to open; the hollow amber run after is when to close, with November 5 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Santa Maria pool calendar
Opening — target May 29
Target May 29; the practical window runs May 22–June 12, and the 7-day mean crosses the 61°F threshold around June 12. Cold-water starts are the cheap ones.
Closing — deadline November 5
Hold the cover until October 26, then winterize by November 5, a week ahead of the December 13 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Santa Maria'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 52° | 53° | 54° | 56° | 58° | 60° | 63° | 64° | 64° | 63° | 60° | 54° |
The curve peaks near 64°F — comfortable-water months here usually involve a heater or a solar cover.
Every station tells its own story: compare this curve with Santa Cruz's pool season and Santa Monica's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the California season index.
Santa Maria pool season FAQ
When should I open my pool in Santa Maria, CA?
Open by May 29 — the model places Santa Maria's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Santa Maria opening guide has the 12-step sequence.
When should I close my pool in Santa Maria?
Close by November 5: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Santa Maria closing guide sequences the work backward from that date.
How long is the swim season in Santa Maria?
Santa Maria averages 0 days a year with normal highs of 80°F or better — about 58 days later than the California median. The California season index ranks all 147 covered cities by the same metric.
How warm does pool water get in Santa Maria?
An unheated pool near Santa Maria typically peaks around 64°F in high summer and bottoms out near 52°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 Santa Maria hits the closing window
Data: NOAA 1991–2020 climate normals via Santa Maria Public Airport (2.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.