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LakeQuality
A wave breaking on the cobble beach of Lake Superior at Duluth, Minnesota, with a wooded headland beyond

Red Sand Lake Water Temperature

Red Sand Lake in Crow Wing County, Minnesota typically sits around 50°F at the surface in October — warmest in Jul (~76°F) and coldest in Oct (~50°F). That is a typical value for the month, not a live reading.

Typical in October
50°F
Cold
Summer average
74°F
Warmest (Jul)
76°F
Coldest (Oct)
50°F

Typical water temperature by month

Jan
Feb
Mar
Apr
61°
May
71°
Jun
76°
Jul
74°
Aug
69°
Sep
50°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (50°F) to its warmest (76°F).

Typical surface water temperature by month, from 214 field readings (2010–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Red Sand Lake warm enough to swim?

At its summer peak (~74°F): Comfortable

Pleasant for swimming — the range most people find enjoyable without a wetsuit.

Want more than temperature? Red Sand Lake water quality: clarity, algae, phosphorus, depth, fish species, and current advisories, all on one page.

Where to stay near Red Sand Lake

Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Red Sand Lake — live availability and prices. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Red Sand Lake

Prices for Oct 23–25, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Frequently asked questions

What is the water temperature of Red Sand Lake?

Red Sand Lake typically sits around 50°F at the surface in October, from 214 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

When is Red Sand Lake warmest?

Surface water at Red Sand Lake is typically warmest in July, reaching about 76°F. Lake surface temperature lags air temperature by several weeks, so the warmest water usually arrives in mid-to-late summer even though the hottest air can come earlier.

Is Red Sand Lake warm enough to swim?

At its typical summer peak of about 74°F, Red Sand Lake rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.

Where does this Red Sand Lake water temperature data come from?

Every temperature on this page is a typical (climatological) value computed from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal — 214 readings from 2 monitoring stations between 2010 and 2025. They describe what is typical for each month, not the temperature right now.

About this data

Water temperatures are a climatology — the typical value for each month, averaged from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal. They tell you what to expect, not the temperature at this moment. Actual conditions vary with recent weather, depth, and time of day.