O'Rourke Lake; Bagley Twp Water Temperature
O'Rourke Lake; Bagley Twp in Otsego County, Michigan averages about 49°F at the surface in summer — warmest in Aug (~51°F) and coldest in May (~44°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 216 field readings (2023–2023) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is O'Rourke Lake; Bagley Twp warm enough to swim?
Cold-water shock is a real risk below 50°F — unprotected swimming is unsafe and even strong swimmers can lose muscle control within minutes.
Want more than temperature? O'Rourke Lake; Bagley Twp scored A on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
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Frequently asked questions
What is the water temperature of O'Rourke Lake; Bagley Twp?
O'Rourke Lake; Bagley Twp has a typical summer surface temperature of about 49°F. It is usually warmest in August (around 51°F) and coldest in May (around 44°F). These are typical values by month from 216 EPA Water Quality Portal field readings (2023–2023), not a live reading.
When is O'Rourke Lake; Bagley Twp warmest?
Surface water at O'Rourke Lake; Bagley Twp is typically warmest in August, reaching about 51°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 O'Rourke Lake; Bagley Twp warm enough to swim?
At its typical summer peak of about 49°F, O'Rourke Lake; Bagley Twp rates as "very cold" for swimming. Cold-water shock is a real risk below 50°F — unprotected swimming is unsafe and even strong swimmers can lose muscle control within minutes.
Where does this O'Rourke Lake; Bagley Twp 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 — 216 readings from 1 monitoring station between 2023 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.