Pool season · California
Turlock Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
Turlock'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.
Turlock, CA — 147 swim days a yearThe bar compresses Turlock's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 21–April 11 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 9. Wherever the today marker sits, the nearest color change is your next appointment.
The Turlock pool calendar
Opening — target March 28
Open by March 28 — a two-week head start on the April 11 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 9
The window opens October 30 once water leaves the algae zone; the model deadline is November 9, a week ahead of the December 20 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Turlock'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 48° | 51° | 56° | 60° | 66° | 72° | 78° | 79° | 77° | 71° | 60° | 51° |
Warmest water typically July–August (peaking near 80°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Tulare's pool season and Tustin's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the California season index.
Turlock pool season FAQ
When should I open my pool in Turlock, CA?
The site model recommends opening by March 28 — about two weeks before Turlock's 7-day mean temperature crosses 61°F, while the water is still too cold for algae. The step-by-step sequence is in the Turlock opening guide.
When should I close my pool in Turlock?
Winterize by November 9. The model holds the deadline a week ahead of Turlock's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Turlock closing guide.
How long is the swim season in Turlock?
Turlock averages 147 days a year with normal highs of 80°F or better — about 4 days earlier than the California median. The California season index ranks all 147 covered cities by the same metric.
How warm does pool water get in Turlock?
An unheated pool near Turlock typically peaks around 80°F in high summer and bottoms out near 48°F in winter, spending roughly 2 months at or above the 78°F comfort line most swimmers prefer. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when Turlock hits the closing window
Data: NOAA 1991–2020 climate normals via Turlock #2 (0.7 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.