Pool season · New Jersey
Elizabeth Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Elizabeth 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.
Each dot on the bar is one week of Elizabeth'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 18–May 9), solid teal is swim season, and hollow amber is the closing window ending October 16. The black marker is today — its position against the colors is the entire executive summary.
The Elizabeth pool calendar
Opening — target April 25
Target April 25; the practical window runs April 18–May 9, and the 7-day mean crosses the 61°F threshold around May 9. Cold-water starts are the cheap ones.
Closing — deadline October 16
The window opens October 6 once water leaves the algae zone; the model deadline is October 16, a week ahead of the November 10 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Elizabeth'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 35° | 33° | 39° | 48° | 59° | 68° | 77° | 78° | 73° | 63° | 52° | 42° |
Warmest water typically August–August (peaking near 78°F); heaters and covers shift any month up.
Email me when Elizabeth hits the closing window
Data: NOAA 1991–2020 climate normals via Newark International Airport (1.6 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.