Little Birch Lake Water Temperature
Little Birch Lake in Todd County, Minnesota typically sits around 55°F at the surface in September — warmest in Aug (~61°F) and coldest in May (~49°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 264 field readings (2018–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Little Birch Lake warm enough to swim?
Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Want more than temperature? Little Birch 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 Little Birch Lake
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Top-rated places to stay near Little Birch Lake
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Frequently asked questions
What is the water temperature of Little Birch Lake?
Little Birch Lake typically sits around 55°F at the surface in September, from 264 EPA Water Quality Portal field readings (2018–2025). That is a typical value for the month, not a live reading.
When is Little Birch Lake warmest?
Surface water at Little Birch Lake is typically warmest in August, reaching about 61°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 Little Birch Lake warm enough to swim?
At its typical summer peak of about 57°F, Little Birch Lake rates as "cold" for swimming. Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Where does this Little Birch 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 — 264 readings from 2 monitoring stations between 2018 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.