Bean Lake Water Temperature
Bean Lake in Lake County, Minnesota typically sits around 59°F at the surface in September — warmest in Jul (~68°F) and coldest in May (~57°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 72 field readings (2022–2024) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Bean Lake warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Bean Lake 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 Bean Lake
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Bean Lake — 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 Bean Lake
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Frequently asked questions
What is the water temperature of Bean Lake?
Bean Lake typically sits around 59°F at the surface in September, from 72 EPA Water Quality Portal field readings (2022–2024). That is a typical value for the month, not a live reading.
When is Bean Lake warmest?
Surface water at Bean Lake is typically warmest in July, 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 Bean Lake warm enough to swim?
At its typical summer peak of about 66°F, Bean Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Bean 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 — 72 readings from 2 monitoring stations between 2022 and 2024. 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.