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

Spitzer Lake Water Temperature

Spitzer Lake in Otter Tail County, Minnesota typically sits around 61°F at the surface in September — warmest in Jul (~65°F) and coldest in May (~57°F). That is a typical value for the month, not a live reading.

Typical in September
61°F
Cool
Summer average
63°F
Warmest (Jul)
65°F
Coldest (May)
57°F

Typical water temperature by month

Jan
Feb
Mar
Apr
May
57°
Jun
61°
Jul
65°
Aug
64°
Sep
61°
Oct
Nov
Dec

Typical surface water temperature by month, from 65 field readings (20172025) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Spitzer Lake warm enough to swim?

At its summer peak (~63°F): Cool

Brisk but swimmable for short dips — most people acclimate after the first few minutes.

Want more than temperature? Spitzer Lake scored B on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.

Where to stay near Spitzer Lake

Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Spitzer 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 Spitzer Lake

Prices for Sep 4–6, 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 Spitzer Lake?

Spitzer Lake typically sits around 61°F at the surface in September, from 65 EPA Water Quality Portal field readings (2017–2025). That is a typical value for the month, not a live reading.

When is Spitzer Lake warmest?

Surface water at Spitzer Lake is typically warmest in July, reaching about 65°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 Spitzer Lake warm enough to swim?

At its typical summer peak of about 63°F, Spitzer Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.

Where does this Spitzer 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 — 65 readings from 1 monitoring station between 2017 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.