Pentwater Lake Northwest Basin; Pentwater Township Water Temperature
Pentwater Lake Northwest Basin; Pentwater Township in Oceana County, Michigan averages about 63°F at the surface in summer — warmest in Aug (~66°F) and coldest in Apr (~50°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 329 field readings (2010–2023) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Pentwater Lake Northwest Basin; Pentwater Township warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Pentwater Lake Northwest Basin; Pentwater Township scored B 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 ~64°F
Summer average ~58°F
Summer average ~71°F
Summer average ~70°F
Summer average ~67°F
Summer average ~72°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Pentwater Lake Northwest Basin; Pentwater Township?
Pentwater Lake Northwest Basin; Pentwater Township has a typical summer surface temperature of about 63°F. It is usually warmest in August (around 66°F) and coldest in April (around 50°F). These are typical values by month from 329 EPA Water Quality Portal field readings (2010–2023), not a live reading.
When is Pentwater Lake Northwest Basin; Pentwater Township warmest?
Surface water at Pentwater Lake Northwest Basin; Pentwater Township is typically warmest in August, reaching about 66°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 Pentwater Lake Northwest Basin; Pentwater Township warm enough to swim?
At its typical summer peak of about 63°F, Pentwater Lake Northwest Basin; Pentwater Township rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Pentwater Lake Northwest Basin; Pentwater Township 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 — 329 readings from 2 monitoring stations between 2010 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.