Pool season · New York
Staten Island Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Staten Island'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.
Staten Island, NY — 92 swim days a yearEach dot on the bar is one week of Staten Island's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (April 18–May 9), solid teal is swim season, and hollow amber is the closing window ending October 16. The black marker is today — its position against the colors is the entire executive summary.
The Staten Island pool calendar
Opening — target April 25
Open by April 25 — a two-week head start on the May 9 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 16
The window opens October 6 once water leaves the algae zone; the model deadline is October 16, a week ahead of the November 10 freeze normal.
Estimated water temperature by month
This is Staten Island'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 35° | 33° | 39° | 48° | 59° | 68° | 77° | 78° | 73° | 63° | 52° | 42° |
Warmest water typically August–August (peaking near 78°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Saratoga Springs's pool season and Syracuse's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the New York season index.
Staten Island pool season FAQ
When should I open my pool in Staten Island, NY?
Target April 25. That date backs off two weeks from the day Staten Island's 7-day mean temperature reaches 61°F, so you start up in cold, algae-resistant water. Work the full checklist in the Staten Island opening guide.
When should I close my pool in Staten Island?
The closing deadline is October 16 — late enough that the water has cooled out of the algae zone, early enough to beat Staten Island's first-freeze normal by about a week. See the Staten Island closing guide for the winterizing steps.
How long is the swim season in Staten Island?
Staten Island averages 92 days a year with normal highs of 80°F or better — about 11 days earlier than the New York median. The New York season index ranks all 16 covered cities by the same metric.
How warm does pool water get in Staten Island?
An unheated pool near Staten Island typically peaks around 78°F in high summer and bottoms out near 32°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 Staten Island hits the closing window
Data: NOAA 1991–2020 climate normals via Newark International Airport (6.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.