Pool season · Florida
Deltona Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Deltona 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 Deltona's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (January 17–February 7), solid teal is swim season, and hollow amber is the closing window ending December 31. The black marker is today — its position against the colors is the entire executive summary.
The Deltona pool calendar
Opening — target January 24
Open by January 24 — a two-week head start on the February 7 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline December 31
The window opens December 25 once water leaves the algae zone; the model deadline is December 31, a week ahead of the January 12 freeze normal.
Estimated water temperature by month
This is Deltona'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 60° | 61° | 64° | 69° | 74° | 80° | 82° | 83° | 82° | 79° | 71° | 65° |
Warmest water typically June–October (peaking near 83°F); heaters and covers shift any month up.
Email me when Deltona hits the closing window
Data: NOAA 1991–2020 climate normals via Sanford (7.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.