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LakeQuality

Loeb Lake Water Temperature

Loeb Lake in Ramsey County, Minnesota averages about 60°F at the surface in summer — warmest in Aug (~63°F) and coldest in Mar (~40°F). These are typical values by month, not a live reading.

Typical in July
60°F
Cool
Summer average
60°F
Warmest (Aug)
63°F
Coldest (Mar)
40°F

Typical water temperature by month

Jan
Feb
Mar
40°
Apr
43°
May
50°
Jun
57°
Jul
60°
Aug
63°
Sep
60°
Oct
57°
Nov
Dec

Typical surface water temperature by month, from 738 field readings (20102025) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Loeb Lake warm enough to swim?

At its summer peak (~60°F): Cool

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

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

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Frequently asked questions

What is the water temperature of Loeb Lake?

Loeb Lake has a typical summer surface temperature of about 60°F. It is usually warmest in August (around 63°F) and coldest in March (around 40°F). These are typical values by month from 738 EPA Water Quality Portal field readings (2010–2025), not a live reading.

When is Loeb Lake warmest?

Surface water at Loeb Lake is typically warmest in August, reaching about 63°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 Loeb Lake warm enough to swim?

At its typical summer peak of about 60°F, Loeb Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.

Where does this Loeb 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 — 738 readings from 1 monitoring station 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.