Lake Twenty East Basin Water Temperature
Lake Twenty East Basin in Gladwin County, Michigan averages about 53°F at the surface in summer — warmest in Sep (~55°F) and coldest in May (~47°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 167 field readings (2014–2016) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Lake Twenty East Basin warm enough to swim?
Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Want more than temperature? Lake Twenty East 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 ~75°F
Summer average ~73°F
Summer average ~71°F
Summer average ~76°F
Summer average ~79°F
Summer average ~65°F
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Frequently asked questions
What is the water temperature of Lake Twenty East Basin?
Lake Twenty East Basin has a typical summer surface temperature of about 53°F. It is usually warmest in September (around 55°F) and coldest in May (around 47°F). These are typical values by month from 167 EPA Water Quality Portal field readings (2014–2016), not a live reading.
When is Lake Twenty East Basin warmest?
Surface water at Lake Twenty East Basin is typically warmest in September, reaching about 55°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 Lake Twenty East Basin warm enough to swim?
At its typical summer peak of about 53°F, Lake Twenty East Basin rates as "cold" for swimming. Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.
Where does this Lake Twenty East 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 — 167 readings from 1 monitoring station between 2014 and 2016. 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.