Hillsborough-Keystone-North Lake Water Temperature
Hillsborough-Keystone-North Lake in Hillsborough County, Florida averages about 81°F at the surface in summer — warmest in Aug (~82°F) and coldest in Dec (~54°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 82 field readings (2010–2012) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Hillsborough-Keystone-North 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? Hillsborough-Keystone-North Lake scored B on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Florida lakes
Summer average ~88°F
Summer average ~89°F
Summer average ~83°F
Summer average ~83°F
Summer average ~87°F
Summer average ~83°F
Explore water temperatures
Where to stay near Hillsborough-Keystone-North Lake
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Hillsborough-Keystone-North Lake — 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 Hillsborough-Keystone-North Lake
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 Hillsborough-Keystone-North Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Hillsborough-Keystone-North Lake — straight to your inbox. No spam, unsubscribe anytime.
Frequently asked questions
What is the water temperature of Hillsborough-Keystone-North Lake?
Hillsborough-Keystone-North Lake has a typical summer surface temperature of about 81°F. It is usually warmest in August (around 82°F) and coldest in December (around 54°F). These are typical values by month from 82 EPA Water Quality Portal field readings (2010–2012), not a live reading.
When is Hillsborough-Keystone-North Lake warmest?
Surface water at Hillsborough-Keystone-North Lake is typically warmest in August, 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 Hillsborough-Keystone-North Lake warm enough to swim?
At its typical summer peak of about 81°F, Hillsborough-Keystone-North 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 Hillsborough-Keystone-North 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 — 82 readings from 1 monitoring station between 2010 and 2012. 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.