PoolWindow

Pool season · California

Escondido Pool Season: the Year on One Bar

Last updated: July 15, 2026 · dates · water temp

Escondido'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.

J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

The bar compresses Escondido's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 5–March 26 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 28. Wherever the today marker sits, the nearest color change is your next appointment.

The Escondido pool calendar

March 12open by
November 28close by
13680°F+ days
77°Fwater peak

Opening — target March 12

Target March 12; the practical window runs March 5–March 26, and the 7-day mean crosses the 61°F threshold around March 26. Cold-water starts are the cheap ones.

Full opening guide

Closing — deadline November 28

The window opens November 18 once water leaves the algae zone; the model deadline is November 28, a week ahead of the December 30 freeze normal.

Full closing guide

Where the water sits today

SEASONAL VIEW

Estimated unheated pool water temp (site model, ±5°F). The live estimate loads in your browser from Open-Meteo air temperatures; in a typical year Escondido water runs about 56°F at its winter floor and 77°F at its summer peak.

40 45 50 55 60 65 70 75 80 85 58 open 65 algae

Estimated water temperature by month

This is Escondido'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.

Site-model seasonal water estimates for an unheated in-ground pool near Escondido #2 — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
56°57°59°62°65°69°74°77°77°72°66°58°

The curve peaks near 77°F — comfortable-water months here usually involve a heater or a solar cover.

Data: NOAA 1991–2020 climate normals via Escondido #2 (1.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.