Pool season · Nebraska
Omaha Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Omaha'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.
Omaha, NE — 88 swim days a yearEach dot on the bar is one week of Omaha'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 23–May 14), solid teal is swim season, and hollow amber is the closing window ending October 9. The black marker is today — its position against the colors is the entire executive summary.
The Omaha pool calendar
Opening — target April 30
Target April 30; the practical window runs April 23–May 14, and the 7-day mean crosses the 61°F threshold around May 14. Cold-water starts are the cheap ones.
Closing — deadline October 9
The window opens September 29 once water leaves the algae zone; the model deadline is October 9, a week ahead of the October 18 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Omaha'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 24° | 25° | 35° | 47° | 57° | 68° | 75° | 75° | 71° | 60° | 46° | 33° |
The curve peaks near 76°F — comfortable-water months here usually involve a heater or a solar cover.
Every station tells its own story: compare this curve with Lincoln's pool season or jump back to the Nebraska season index to see the statewide spread.
Omaha pool season FAQ
When should I open my pool in Omaha, NE?
Open by April 30 — the model places Omaha's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Omaha opening guide has the 12-step sequence.
When should I close my pool in Omaha?
Close by October 9: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Omaha closing guide sequences the work backward from that date.
How long is the swim season in Omaha?
Omaha averages 88 days a year with normal highs of 80°F or better — right on the statewide median. The Nebraska season index ranks all 2 covered cities by the same metric.
How warm does pool water get in Omaha?
An unheated pool near Omaha typically peaks around 76°F in high summer and bottoms out near 23°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 Omaha hits the closing window
Data: NOAA 1991–2020 climate normals via Omaha #1 (6.5 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.