Pool season · Michigan
Livonia Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Livonia'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.
Livonia, MI — 62 swim days a yearThe bar compresses Livonia's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the May 5–May 26 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends September 29. Wherever the today marker sits, the nearest color change is your next appointment.
The Livonia pool calendar
Opening — target May 12
Target May 12; the practical window runs May 5–May 26, and the 7-day mean crosses the 61°F threshold around May 26. Cold-water starts are the cheap ones.
Closing — deadline September 29
Hold the cover until September 19, then winterize by September 29, a week ahead of the October 17 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Livonia'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 25° | 23° | 29° | 40° | 52° | 63° | 70° | 71° | 66° | 56° | 44° | 33° |
The curve peaks near 72°F — comfortable-water months here usually involve a heater or a solar cover.
Every station tells its own story: compare this curve with Lansing's pool season and Muskegon's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Michigan season index.
Livonia pool season FAQ
When should I open my pool in Livonia, MI?
The site model recommends opening by May 12 — about two weeks before Livonia'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 Livonia opening guide.
When should I close my pool in Livonia?
Winterize by September 29. The model holds the deadline a week ahead of Livonia's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Livonia closing guide.
How long is the swim season in Livonia?
Livonia averages 62 days a year with normal highs of 80°F or better — right on the statewide median. The Michigan season index ranks all 23 covered cities by the same metric.
How warm does pool water get in Livonia?
An unheated pool near Livonia typically peaks around 72°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 Livonia hits the closing window
Data: NOAA 1991–2020 climate normals via Farmington (4.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.