North Lake Water Temperature
North Lake in Washtenaw County, Michigan typically sits around 60°F at the surface in September — warmest in Aug (~61°F) and coldest in Apr (~51°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 1,179 field readings (2014–2023) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is North Lake warm enough to swim?
Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Want more than temperature? North Lake scored A on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
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Where to stay near North Lake
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near North 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 North Lake
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Frequently asked questions
What is the water temperature of North Lake?
North Lake typically sits around 60°F at the surface in September, from 1,179 EPA Water Quality Portal field readings (2014–2023). That is a typical value for the month, not a live reading.
When is North Lake warmest?
Surface water at North 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 North Lake warm enough to swim?
At its typical summer peak of about 59°F, North Lake rates as "cold" for swimming. Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Where does this North 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 — 1,179 readings from 1 monitoring station between 2014 and 2023. 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.