Falk Lake Water Temperature
Falk Lake in Burnett County, Wisconsin averages about 75°F at the surface in summer — warmest in Aug (~77°F) and coldest in Oct (~69°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 14 field readings (2025–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Falk Lake warm enough to swim?
Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Want more than temperature? Falk Lake scored B on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Wisconsin lakes
Explore water temperatures
Where to stay near Falk Lake
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Falk Lake — live availability and prices.
Top-rated places to stay near Falk 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 Falk Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Falk Lake — straight to your inbox. No spam, unsubscribe anytime.
Frequently asked questions
What is the water temperature of Falk Lake?
Falk Lake has a typical summer surface temperature of about 75°F. It is usually warmest in August (around 77°F) and coldest in October (around 69°F). These are typical values by month from 14 EPA Water Quality Portal field readings (2025–2025), not a live reading.
When is Falk Lake warmest?
Surface water at Falk Lake is typically warmest in August, reaching about 77°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 Falk Lake warm enough to swim?
At its typical summer peak of about 75°F, Falk Lake rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Where does this Falk 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 — 14 readings from 1 monitoring station 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.