Pine Lake South Beach Water Temperature
Pine Lake South Beach in Hardin County, Iowa typically sits around 79°F at the surface in August — warmest in Jul (~82°F) and coldest in May (~70°F). That is a typical value for the month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 86 field readings (2010–2022) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Pine Lake South Beach warm enough to swim?
Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Want more than temperature? Pine Lake South Beach scored NR on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Iowa lakes
Summer average ~76°F
Summer average ~77°F
Summer average ~77°F
Summer average ~76°F
Summer average ~77°F
Summer average ~78°F
Explore water temperatures
Where to stay near Pine Lake South Beach
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Pine Lake South Beach — 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 Pine Lake South Beach
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.
Planning a trip to Pine Lake South Beach?
Get lake water-quality report cards plus the best cabin & lodging deals near Pine Lake South Beach — straight to your inbox. No spam, unsubscribe anytime.
Frequently asked questions
What is the water temperature of Pine Lake South Beach?
Pine Lake South Beach typically sits around 79°F at the surface in August, from 86 EPA Water Quality Portal field readings (2010–2022). That is a typical value for the month, not a live reading.
When is Pine Lake South Beach warmest?
Surface water at Pine Lake South Beach is typically warmest in July, reaching about 82°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 Pine Lake South Beach warm enough to swim?
At its typical summer peak of about 79°F, Pine Lake South Beach rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Where does this Pine Lake South Beach 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 — 86 readings from 1 monitoring station between 2010 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.