PoolWindow

Pool season · New York

Syracuse Pool Season: the Year on One Bar

Last updated: July 15, 2026 · dates · water temp

One bar, one year, one Syracuse 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.

J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

Reading it takes ten seconds: 52 dots, one per week. Solid teal is Syracuse's swim season; the hollow teal run before it (May 4 to May 25) is when to open; the hollow amber run after is when to close, with September 30 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.

The Syracuse pool calendar

May 11open by
September 30close by
5680°F+ days
72°Fwater peak

Opening — target May 11

Open by May 11 — a two-week head start on the May 25 crossing keeps startup chemistry small and beats the local service rush.

Full opening guide

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 19 freeze normal.

Full closing guide

Where the water sits today

SEASONAL VIEW

Estimated unheated pool water temp (site model, ±5°F). The live estimate loads in your browser from Open-Meteo air temperatures; in a typical year Syracuse water runs about 24°F at its winter floor and 72°F at its summer peak.

40 45 50 55 60 65 70 75 80 85 58 open 65 algae

Estimated water temperature by month

This is Syracuse'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.

Site-model seasonal water estimates for an unheated in-ground pool near Syracuse Hancock International Airport — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
26°24°30°40°53°63°70°72°67°57°46°35°

The curve peaks near 72°F — comfortable-water months here usually involve a heater or a solar cover.

Data: NOAA 1991–2020 climate normals via Syracuse Hancock International Airport (5.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.