Pool season · Virginia
Chesapeake Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
Chesapeake'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.
Chesapeake, VA — 148 swim days a yearEach dot on the bar is one week of Chesapeake's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (March 24–April 14), solid teal is swim season, and hollow amber is the closing window ending November 5. The black marker is today — its position against the colors is the entire executive summary.
The Chesapeake pool calendar
Opening — target March 31
Open by March 31 — a two-week head start on the April 14 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 5
The window opens October 26 once water leaves the algae zone; the model deadline is November 5, a week ahead of the November 18 freeze normal.
Estimated water temperature by month
This is Chesapeake'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 45° | 45° | 49° | 57° | 67° | 75° | 82° | 81° | 78° | 70° | 59° | 50° |
Warmest water typically July–September (peaking near 83°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Charlottesville's pool season and Fredericksburg's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Virginia season index.
Chesapeake pool season FAQ
When should I open my pool in Chesapeake, VA?
The site model recommends opening by March 31 — about two weeks before Chesapeake's 7-day mean temperature crosses 61°F, while the water is still too cold for algae. The step-by-step sequence is in the Chesapeake opening guide.
When should I close my pool in Chesapeake?
Winterize by November 5. The model holds the deadline a week ahead of Chesapeake's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Chesapeake closing guide.
How long is the swim season in Chesapeake?
Chesapeake averages 148 days a year with normal highs of 80°F or better — about 10 days earlier than the Virginia median. The Virginia season index ranks all 16 covered cities by the same metric.
How warm does pool water get in Chesapeake?
An unheated pool near Chesapeake typically peaks around 83°F in high summer and bottoms out near 44°F in winter, spending roughly 2 months at or above the 78°F comfort line most swimmers prefer. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when Chesapeake hits the closing window
Data: NOAA 1991–2020 climate normals via Fentress Naas (9.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.