Back Bay Deep Lake Water Temperature
Back Bay Deep Lake in Chippewa County, Michigan averages about 63°F at the surface in summer — warmest in Aug (~68°F) and coldest in Jan (~32°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 325 field readings (2010–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Back Bay Deep Lake warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Back Bay Deep Lake scored B on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Michigan lakes
Summer average ~66°F
Summer average ~71°F
Summer average ~59°F
Summer average ~60°F
Summer average ~68°F
Summer average ~66°F
Explore water temperatures
Where to stay near Back Bay Deep Lake
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Back Bay Deep Lake — live availability and prices.
Top-rated places to stay near Back Bay Deep Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Back Bay Deep Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Back Bay Deep Lake — straight to your inbox. No spam, unsubscribe anytime.
Frequently asked questions
What is the water temperature of Back Bay Deep Lake?
Back Bay Deep Lake has a typical summer surface temperature of about 63°F. It is usually warmest in August (around 68°F) and coldest in January (around 32°F). These are typical values by month from 325 EPA Water Quality Portal field readings (2010–2025), not a live reading.
When is Back Bay Deep Lake warmest?
Surface water at Back Bay Deep Lake is typically warmest in August, 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 Back Bay Deep Lake warm enough to swim?
At its typical summer peak of about 63°F, Back Bay Deep Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Back 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 — 325 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.