Pool season · Minnesota
Minneapolis Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Minneapolis'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.
The bar compresses Minneapolis's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the May 1–May 22 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends September 30. Wherever the today marker sits, the nearest color change is your next appointment.
The Minneapolis pool calendar
Opening — target May 8
Open by May 8 — a two-week head start on the May 22 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline September 30
The window opens September 20 once water leaves the algae zone; the model deadline is September 30, a week ahead of the October 16 freeze normal.
Estimated water temperature by month
This is Minneapolis'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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 17° | 16° | 26° | 40° | 53° | 65° | 72° | 73° | 67° | 56° | 40° | 26° |
The curve peaks near 74°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Minneapolis hits the closing window
Data: NOAA 1991–2020 climate normals via Lower St Anthony Falls (1.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.