Pool season · Kansas
Topeka Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Topeka'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.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Topeka's swim season; the hollow teal run before it (April 15 to May 6) is when to open; the hollow amber run after is when to close, with October 15 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Topeka pool calendar
Opening — target April 22
Open by April 22 — a two-week head start on the May 6 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 15
Hold the cover until October 6, then winterize by October 15, a week ahead of the October 22 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Topeka'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30° | 31° | 39° | 51° | 60° | 71° | 77° | 78° | 73° | 63° | 49° | 38° |
Warmest water typically August–August (peaking near 79°F); heaters and covers shift any month up.
Email me when Topeka hits the closing window
Data: NOAA 1991–2020 climate normals via Topeka - NWS (4.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.