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

Ingerson Lake Water Temperature

Ingerson Lake in Allegan County, Michigan typically sits around 54°F at the surface in October — warmest in Jul (~68°F) and coldest in Jan (~39°F). That is a typical value for the month, not a live reading.

Typical in October
54°F
Cold
Summer average
67°F
Warmest (Jul)
68°F
Coldest (Jan)
39°F

Typical water temperature by month

39°
Jan
40°
Feb
44°
Mar
49°
Apr
61°
May
65°
Jun
68°
Jul
68°
Aug
65°
Sep
54°
Oct
41°
Nov
Dec

Column height runs from this lake’s coldest month (39°F) to its warmest (68°F).

Typical surface water temperature by month, from 679 field readings (2012–2024) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Ingerson Lake warm enough to swim?

At its summer peak (~67°F): Cool

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

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

Where to stay near Ingerson Lake

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

Ingerson Lake typically sits around 54°F at the surface in October, from 679 EPA Water Quality Portal field readings (2012–2024). That is a typical value for the month, not a live reading.

When is Ingerson Lake warmest?

Surface water at Ingerson Lake is typically warmest in July, reaching about 68°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 Ingerson Lake warm enough to swim?

At its typical summer peak of about 67°F, Ingerson Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.

Where does this Ingerson 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 — 679 readings from 1 monitoring station between 2012 and 2024. 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.