Baldwin Lake Northwest Basin Water Temperature
Baldwin Lake Northwest Basin in Cass County, Michigan averages about 60°F at the surface in summer — warmest in Aug (~62°F) and coldest in May (~54°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 358 field readings (2022–2023) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Baldwin Lake Northwest Basin warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Baldwin Lake Northwest Basin scored C on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Michigan lakes
Summer average ~63°F
Summer average ~55°F
Summer average ~66°F
Summer average ~66°F
Summer average ~57°F
Summer average ~72°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Baldwin Lake Northwest Basin?
Baldwin Lake Northwest Basin has a typical summer surface temperature of about 60°F. It is usually warmest in August (around 62°F) and coldest in May (around 54°F). These are typical values by month from 358 EPA Water Quality Portal field readings (2022–2023), not a live reading.
When is Baldwin Lake Northwest Basin warmest?
Surface water at Baldwin Lake Northwest Basin is typically warmest in August, reaching about 62°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 Baldwin Lake Northwest Basin warm enough to swim?
At its typical summer peak of about 60°F, Baldwin Lake Northwest Basin rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Baldwin Lake Northwest Basin 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 — 358 readings from 1 monitoring station between 2022 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.