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LakeQuality
A wave breaking on the cobble beach of Lake Superior at Duluth, Minnesota, with a wooded headland beyond

Lake Serene Water Temperature

Lake Serene in Franklin County, Missouri typically sits around 80°F at the surface in September — warmest in Jul (~88°F) and coldest in May (~71°F). That is a typical value for the month, not a live reading.

Typical in September
80°F
Warm
Summer average
85°F
Warmest (Jul)
88°F
Coldest (May)
71°F

Typical water temperature by month

Jan
Feb
Mar
Apr
May
71°
Jun
85°
Jul
88°
Aug
83°
Sep
80°
Oct
Nov
Dec

Typical surface water temperature by month, from 24 field readings (20212024) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Lake Serene warm enough to swim?

At its summer peak (~85°F): Warm

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? Lake Serene scored D on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.

Where to stay near Lake Serene

Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Lake Serene — live availability and prices. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Lake Serene

Prices for Sep 4–6, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Frequently asked questions

What is the water temperature of Lake Serene?

Lake Serene typically sits around 80°F at the surface in September, from 24 EPA Water Quality Portal field readings (2021–2024). That is a typical value for the month, not a live reading.

When is Lake Serene warmest?

Surface water at Lake Serene is typically warmest in July, reaching about 88°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 Serene warm enough to swim?

At its typical summer peak of about 85°F, Lake Serene 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 Lake Serene 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 — 24 readings from 1 monitoring station between 2021 and 2024. 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.