Port Hudson Lake Water Temperature
Port Hudson Lake in Franklin County, Missouri averages about 85°F at the surface in summer — warmest in Jul (~86°F) and coldest in May (~74°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 17 field readings (2019–2022) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Port Hudson Lake warm enough to swim?
Very comfortable for swimming. Warm surface water can also favor blue-green algae in nutrient-rich lakes, so check for advisories before you go in.
Want more than temperature? Port Hudson Lake scored C on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Missouri lakes
Summer average ~84°F
Summer average ~83°F
Summer average ~83°F
Summer average ~81°F
Summer average ~83°F
Summer average ~81°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Port Hudson Lake?
Port Hudson Lake has a typical summer surface temperature of about 85°F. It is usually warmest in July (around 86°F) and coldest in May (around 74°F). These are typical values by month from 17 EPA Water Quality Portal field readings (2019–2022), not a live reading.
When is Port Hudson Lake warmest?
Surface water at Port Hudson Lake is typically warmest in July, reaching about 86°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 Port Hudson Lake warm enough to swim?
At its typical summer peak of about 85°F, Port Hudson Lake rates as "warm" for swimming. Very comfortable for swimming. Warm surface water can also favor blue-green algae in nutrient-rich lakes, so check for advisories before you go in.
Where does this Port Hudson 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 — 17 readings from 2 monitoring stations between 2019 and 2022. 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.