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LakeQuality

Krans Lake Water Temperature

Krans Lake in Isanti County, Minnesota averages about 74°F at the surface in summer — warmest in Jul (~77°F) and coldest in Oct (~58°F). These are typical values by month, not a live reading.

Typical in July
77°F
Comfortable
Summer average
74°F
Warmest (Jul)
77°F
Coldest (Oct)
58°F

Typical water temperature by month

Jan
Feb
Mar
Apr
May
65°
Jun
72°
Jul
77°
Aug
72°
Sep
69°
Oct
58°
Nov
Dec

Typical surface water temperature by month, from 30 field readings (20232025) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Krans 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? Krans Lake scored F on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.

Where to stay near Krans Lake

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Frequently asked questions

What is the water temperature of Krans Lake?

Krans Lake has a typical summer surface temperature of about 74°F. It is usually warmest in July (around 77°F) and coldest in October (around 58°F). These are typical values by month from 30 EPA Water Quality Portal field readings (2023–2025), not a live reading.

When is Krans Lake warmest?

Surface water at Krans Lake is typically warmest in July, reaching about 77°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 Krans Lake warm enough to swim?

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

Where does this Krans 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 — 30 readings from 1 monitoring station between 2023 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.