Pool season · California
Torrance Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Torrance'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.
Torrance, CA — 0 swim days a yearThe bar compresses Torrance's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the April 10–May 1 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 25. Wherever the today marker sits, the nearest color change is your next appointment.
The Torrance 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
The window opens November 15 once water leaves the algae zone; the model deadline is November 25, a week ahead of the January 5 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Torrance'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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.
Every station tells its own story: compare this curve with Thousand Oaks's pool season and Tracy's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the California season index.
Torrance pool season FAQ
When should I open my pool in Torrance, CA?
Open by April 17 — the model places Torrance's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Torrance opening guide has the 12-step sequence.
When should I close my pool in Torrance?
Close by November 25: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Torrance closing guide sequences the work backward from that date.
How long is the swim season in Torrance?
Torrance averages 0 days a year with normal highs of 80°F or better — about 16 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 Torrance?
An unheated pool near Torrance typically peaks around 70°F in high summer and bottoms out near 56°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 Torrance hits the closing window
Data: NOAA 1991–2020 climate normals via Redondo Beach (2.0 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.