Pool season · Nevada
Reno Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
Reno'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.
Reno, NV — 103 swim days a yearThe bar compresses Reno's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the May 2–May 23 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 12. Wherever the today marker sits, the nearest color change is your next appointment.
The Reno pool calendar
Opening — target May 9
Open by May 9 — a two-week head start on the May 23 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 12
Hold the cover until October 2, then winterize by October 12, a week ahead of the October 27 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Reno'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 36° | 38° | 43° | 48° | 55° | 64° | 74° | 77° | 72° | 61° | 49° | 38° |
The curve peaks near 78°F — comfortable-water months here usually involve a heater or a solar cover.
Every station tells its own story: compare this curve with Paradise's pool season and Sparks's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Nevada season index.
Reno pool season FAQ
When should I open my pool in Reno, NV?
Target May 9. That date backs off two weeks from the day Reno's 7-day mean temperature reaches 61°F, so you start up in cold, algae-resistant water. Work the full checklist in the Reno opening guide.
When should I close my pool in Reno?
The closing deadline is October 12 — late enough that the water has cooled out of the algae zone, early enough to beat Reno's first-freeze normal by about a week. See the Reno closing guide for the winterizing steps.
How long is the swim season in Reno?
Reno averages 103 days a year with normal highs of 80°F or better — about 63 days later than the Nevada median. The Nevada season index ranks all 9 covered cities by the same metric.
How warm does pool water get in Reno?
An unheated pool near Reno typically peaks around 78°F in high summer and bottoms out near 36°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 Reno hits the closing window
Data: NOAA 1991–2020 climate normals via Reno Wfo (3.1 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.