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

Lake Lime Water Temperature

Lake Lime in Portage County, Wisconsin typically sits around 69°F at the surface in September — warmest in Jul (~79°F) and coldest in Feb (~36°F). That is a typical value for the month, not a live reading.

Typical in September
69°F
Cool
Summer average
74°F
Warmest (Jul)
79°F
Coldest (Feb)
36°F

Typical water temperature by month

Jan
36°
Feb
Mar
Apr
59°
May
71°
Jun
79°
Jul
71°
Aug
69°
Sep
Oct
Nov
Dec

Column height runs from this lake’s coldest month (36°F) to its warmest (79°F).

Typical surface water temperature by month, from 34 field readings (2025–2026) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Lake Lime warm enough to swim?

At its summer peak (~74°F): Comfortable

Pleasant for swimming — the range most people find enjoyable without a wetsuit.

Want more than temperature? Lake Lime water quality: clarity, algae, phosphorus, depth, fish species, and current advisories, all on one page.

Where to stay near Lake Lime

Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Lake Lime — 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 Lime

Prices for Oct 16–18, 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.

Planning a trip to Lake Lime?

Get lake water-quality updates plus the best cabin & lodging deals near Lake Lime — straight to your inbox. No spam, unsubscribe anytime.

Frequently asked questions

What is the water temperature of Lake Lime?

Lake Lime typically sits around 69°F at the surface in September, from 34 EPA Water Quality Portal field readings (2025–2026). That is a typical value for the month, not a live reading.

When is Lake Lime warmest?

Surface water at Lake Lime is typically warmest in July, reaching about 79°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 Lime warm enough to swim?

At its typical summer peak of about 74°F, Lake Lime rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.

Where does this Lake Lime 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 — 34 readings from 1 monitoring station between 2025 and 2026. 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.