PoolWindow

Pool season · Minnesota

Brooklyn Park Pool Season: the Year on One Bar

Last updated: July 25, 2026 · dates · water temp

Brooklyn Park'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.

Cool blue pool in a short-season northern climateBrooklyn Park, MN — 67 swim days a year
J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

The bar compresses Brooklyn Park's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the May 3–May 24 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends September 29. Wherever the today marker sits, the nearest color change is your next appointment.

The Brooklyn Park pool calendar

May 10open by
September 29close by
6780°F+ days
73°Fwater peak

Opening — target May 10

Open by May 10 — a two-week head start on the May 24 crossing keeps startup chemistry small and beats the local service rush.

Full opening guide

Closing — deadline September 29

The window opens September 19 once water leaves the algae zone; the model deadline is September 29, a week ahead of the October 8 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 Brooklyn Park water runs about 16°F at its winter floor and 73°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 Brooklyn Park'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.

10°20°30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDec65° algae zone58° swimmable startopen May 10close Sep 2973°F peak16°F floor
Site-model seasonal water estimates for an unheated in-ground pool near Mpls Crystal Airport — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
17°17°27°40°53°64°72°72°67°55°41°27°

The curve peaks near 73°F — comfortable-water months here usually involve a heater or a solar cover.

Every station tells its own story: compare this curve with Bloomington's pool season and Duluth's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Minnesota season index.

Brooklyn Park pool season FAQ

When should I open my pool in Brooklyn Park, MN?

The site model recommends opening by May 10 — about two weeks before Brooklyn Park'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 Brooklyn Park opening guide.

When should I close my pool in Brooklyn Park?

Winterize by September 29. The model holds the deadline a week ahead of Brooklyn Park's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Brooklyn Park closing guide.

How long is the swim season in Brooklyn Park?

Brooklyn Park averages 67 days a year with normal highs of 80°F or better — right on the statewide median. The Minnesota season index ranks all 10 covered cities by the same metric.

How warm does pool water get in Brooklyn Park?

An unheated pool near Brooklyn Park typically peaks around 73°F in high summer and bottoms out near 16°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.

Data: NOAA 1991–2020 climate normals via Mpls Crystal Airport (3.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.