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Photo: Colonial Lake, Charleston by Michael Rivera (CC BY-SA 4.0) License

Colonial Lake

Lake · Charleston, South Carolina

Great conditions today

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Current water conditions

Water temp
88°F
31°C
Warm water — comfortable, stay sun-safe. Plenty warm for swimming. Stay hydrated, use sun protection, and keep an eye out for afternoon storms.

Live data from NOAA buoy CHTS1 (1 mi away), as of Aug 21, 1:48 PM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Colonial Lake

H: 94° L: 81°
Overcast
Overcast
84°
|
Feels like 94°
Precipitation
57%
Humidity
78%
Wind
6 mph
UV Index
3.4
Water Conditions:
🏊Perfect for swimming
12 AM
Clear
86°
3 AM
Clear
84°
6 AM
Cloudy
82°
9 AM
Overcast
82°
12 PM
Overcast
89°
3 PM
Thundery outbreaks in nearby
92°
6 PM
Sunny
89°
9 PM
Light rain shower
83°

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Frequently asked questions

Where is Colonial Lake?
Colonial Lake is a lake in Charleston, South Carolina.
What is the water temperature at Colonial Lake?
As of August 21, 2026, the water temperature at Colonial Lake in Charleston, South Carolina is 88°F (31°C), measured by NOAA buoy CHTS1, 1 mile away.
Can you swim at Colonial Lake?
There is no fixed answer for Colonial Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Colonial Lake in Charleston, South Carolina. Check current water conditions before you go, and follow posted signs and local guidance.
How is Colonial Lake rated?
Colonial Lake in Charleston, South Carolina has an average visitor rating of 4.9 out of 5, based on 32 reviews.

Visitor Reviews

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Best Times to Visit

Right Now
Perfect conditions right now!
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Charleston, SC 29401

Charleston, South Carolina 29401

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People Talk About

💬 walk💬 parking