Lake Formosa @ Asher Lane Water Temperature
Lake Formosa @ Asher Lane in Orange County, Florida typically sits around 68°F at the surface in December — warmest in Mar (~76°F) and coldest in Jan (~63°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 15 field readings (2020–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Lake Formosa @ Asher Lane warm enough to swim?
Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Want more than temperature? Lake Formosa @ Asher Lane water quality: clarity, algae, phosphorus, depth, fish species, and current advisories, all on one page.
Water temperatures at nearby Florida lakes
Summer average ~87°F
Summer average ~87°F
Summer average ~87°F
Summer average ~86°F
Summer average ~85°F
Summer average ~86°F
Explore water temperatures
Where to stay near Lake Formosa @ Asher Lane
Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Lake Formosa @ Asher Lane — 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 Formosa @ Asher Lane
Prices for Sep 18–20, 4 adults. Change dates on the map below.
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Frequently asked questions
What is the water temperature of Lake Formosa @ Asher Lane?
Lake Formosa @ Asher Lane typically sits around 68°F at the surface in December, from 15 EPA Water Quality Portal field readings (2020–2025). That is a typical value for the month, not a live reading.
When is Lake Formosa @ Asher Lane warmest?
Surface water at Lake Formosa @ Asher Lane is typically warmest in March, reaching about 76°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 Formosa @ Asher Lane warm enough to swim?
At its typical summer peak of about 76°F, Lake Formosa @ Asher Lane rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Where does this Lake Formosa @ Asher Lane 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 — 15 readings from 3 monitoring stations between 2020 and 2025. 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.