Whitefish Bay Deep Lake Water Temperature
Whitefish Bay Deep Lake in Chippewa County, Michigan averages about 49°F at the surface in summer — warmest in Aug (~53°F) and coldest in May (~38°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 699 field readings (2010–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Whitefish Bay Deep Lake warm enough to swim?
Cold-water shock is a real risk below 50°F — unprotected swimming is unsafe and even strong swimmers can lose muscle control within minutes.
Want more than temperature? Whitefish Bay Deep Lake scored A on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Michigan lakes
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Explore water temperatures
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Frequently asked questions
What is the water temperature of Whitefish Bay Deep Lake?
Whitefish Bay Deep Lake has a typical summer surface temperature of about 49°F. It is usually warmest in August (around 53°F) and coldest in May (around 38°F). These are typical values by month from 699 EPA Water Quality Portal field readings (2010–2025), not a live reading.
When is Whitefish Bay Deep Lake warmest?
Surface water at Whitefish Bay Deep Lake is typically warmest in August, reaching about 53°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 Whitefish Bay Deep Lake warm enough to swim?
At its typical summer peak of about 49°F, Whitefish Bay Deep Lake rates as "very cold" for swimming. Cold-water shock is a real risk below 50°F — unprotected swimming is unsafe and even strong swimmers can lose muscle control within minutes.
Where does this Whitefish Bay Deep 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 — 699 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.