Cass Lake Pike Bay Water Temperature
Cass Lake Pike Bay in Cass County, Minnesota typically sits around 57°F at the surface in September — warmest in Aug (~59°F) and coldest in May (~50°F). That is a typical value for the month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 216 field readings (2025–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Cass Lake Pike Bay warm enough to swim?
Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Want more than temperature? Cass Lake Pike Bay scored A on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Minnesota lakes
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Where to stay near Cass Lake Pike Bay
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Cass Lake Pike Bay — live availability and prices. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Cass Lake Pike Bay
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Frequently asked questions
What is the water temperature of Cass Lake Pike Bay?
Cass Lake Pike Bay typically sits around 57°F at the surface in September, from 216 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.
When is Cass Lake Pike Bay warmest?
Surface water at Cass Lake Pike Bay is typically warmest in August, reaching about 59°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 Cass Lake Pike Bay warm enough to swim?
At its typical summer peak of about 57°F, Cass Lake Pike Bay rates as "cold" for swimming. Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Where does this Cass Lake Pike Bay 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 — 216 readings from 2 monitoring stations between 2025 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.