Pool season · State index
New Mexico Pool Season 2026: Opening & Closing Dates by City
Last updated: July 25, 2026 · 4 cities covered
Both halves of the pool year for all 4 covered New Mexico cities. The median calendar runs April 22 to October 17. Every row links to a one-page season overview with the live water-temperature model; the opening and closing hubs carry the full checklists.
New Mexico: a long-season pool state| City | Open by | Close by | 80°F+ days |
|---|---|---|---|
| Albuquerque | Apr 22 | Oct 13 | 153 |
| Las Cruces | Mar 28 | Nov 2 | 175 |
| Rio Rancho | Apr 22 | Oct 21 | 140 |
| Santa Fe | May 13 | Sep 29 | 99 |
What the columns mean
"Open by" is the recommended spring date — two weeks before the city's 7-day mean temperature crosses 61°F, the model's proxy for water approaching the 65°F algae-growth zone. "Close by" is the fall deadline — ten days after the water leaves that zone, capped a week ahead of the local 50% first-freeze date. "80°F+ days" counts days whose normal high reaches 80°F: the length of the true warm-swim season, and the fairest single number for comparing New Mexico cities against each other.
Every figure comes from each city's own NOAA 1991–2020 normals station (named in its guide's footer), so neighboring cities can legitimately differ by a few days. The season overview linked from each row adds the live water-temperature model and the full-year season bar; the state hubs above carry the step-by-step checklists.
Swim-season length across New Mexico
The fairest way to compare New Mexico cities is the number of days with 80°F+ normal highs — the practical warm-swim season. Every bar links to that city's one-page season overview with the live water model.
New Mexico pool climate at a glance
High-desert sunshine is abundant, but elevation rules the calendar: southern lowland pools run long seasons while Albuquerque, Santa Fe, and mountain towns face chilly nights. In model terms that makes New Mexico a long-season state. The spread shows up clearly on the local pages: compare Las Cruces's pool season with Rio Rancho's and the difference is measured in weeks, not days. Neighbors in the index run on their own normals too — see New Jersey and New York for the adjacent calendars.
New Mexico pool season FAQ
When do pools open in New Mexico?
Model openings in New Mexico run from March 28 in Las Cruces to May 13 in Santa Fe, with the statewide median on April 22. Each date is two weeks before that city's 7-day mean temperature crosses 61°F — early enough to start up in algae-cold water.
When should you close a pool in New Mexico?
The median New Mexico closing deadline is October 21, and every city's own deadline is capped a week ahead of its NOAA 50% first-freeze date. Closing late and cold beats closing early and warm — cool water holds its winter chemistry far better.
Which New Mexico city has the longest swim season?
Las Cruces leads with 175 days of 80°F+ highs per year, while Santa Fe brings up the rear at 99 days. The chart above ranks every covered city by the same metric.