Swede Lake Deep Water Temperature
Swede Lake Deep in Cook County, Minnesota averages about 73°F at the surface in summer — warmest in Aug (~78°F) and coldest in May (~50°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 80 field readings (2011–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Swede Lake Deep warm enough to swim?
Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Want more than temperature? Swede Lake Deep scored F on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Minnesota lakes
Summer average ~72°F
Summer average ~67°F
Summer average ~72°F
Summer average ~70°F
Summer average ~73°F
Summer average ~73°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Swede Lake Deep?
Swede Lake Deep has a typical summer surface temperature of about 73°F. It is usually warmest in August (around 78°F) and coldest in May (around 50°F). These are typical values by month from 80 EPA Water Quality Portal field readings (2011–2025), not a live reading.
When is Swede Lake Deep warmest?
Surface water at Swede Lake Deep is typically warmest in August, reaching about 78°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 Swede Lake Deep warm enough to swim?
At its typical summer peak of about 73°F, Swede Lake Deep rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Where does this Swede Lake Deep 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 — 80 readings from 4 monitoring stations between 2011 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.