Lake Moultrie — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Moultrie, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Moultrie today is 28.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 4 | 28.5°C | 29.0°C | |
| AUG 5 | 28.6°C | 29.0°C | |
| AUG 6 | 28.7°C | 29.0°C | |
| AUG 7 | 28.7°C | 29.0°C | |
| AUG 8 | 28.8°C | 29.0°C | |
| AUG 9 | 28.5°C | 29.0°C | |
| AUG 10 | 28.6°C | 29.0°C | |
| AUG 11 | 28.5°C | 29.0°C | |
| AUG 12 | 29.0°C | 28.3°C | |
| AUG 13 | 29.0°C | 28.4°C | |
| AUG 14 | 29.0°C | 28.4°C | |
| AUG 15 | 29.0°C | 28.4°C | |
| AUG 16 | 29.0°C | 28.5°C | |
| AUG 17 | 29.0°C | 28.5°C | |
| AUG 18 | 29.0°C | 28.5°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 6°C | 12°C | 17°C |
| February | 6°C | 11°C | 16°C |
| March | 8°C | 14°C | 20°C |
| April | 14°C | 19°C | 24°C |
| May | 18°C | 22°C | 26°C |
| June | 21°C | 27°C | 32°C |
| July | 22°C | 27°C | 32°C |
| August | 24°C | 29°C | 34°C |
| September | 23°C | 28°C | 32°C |
| October | 19°C | 24°C | 28°C |
| November | 14°C | 17°C | 20°C |
| December | 9°C | 13°C | 15°C |
Lake Moultrie: Water Temperature by Location
Lake Moultrie: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Lake Moultrie, a large reservoir in South Carolina, experiences a wide annual swing in surface water temperatures. In winter months the surface commonly falls into the 40s–50s °F (about 4–13 °C). Spring sees a gradual rise into the mid-50s to low 70s °F (13–21 °C) as air temperatures warm, while summer surface values frequently reach the mid-70s to mid-80s °F and can peak into the high 80s or low 90s °F (approximately 24–32 °C, occasionally up to ~33 °C) on warm spells. In autumn the water cools back toward the 60s–70s °F range (16–24 °C). These ranges vary with depth, weather patterns, inflows, and time of day, so swimmers can encounter noticeably different conditions at different spots or times.
Swimming is generally permitted in and around Lake Moultrie, particularly during the warmer months when surface temperatures are most comfortable. However, swimming is often unmanaged and can be restricted at specific shorelines because of boat traffic, submerged hazards, and occasional water-quality advisories such as algal blooms. Cold-season swimming carries a notable hypothermia risk when water temperatures fall below about 60 °F (15–16 °C), so most people choose to swim in late spring through early fall. Using designated recreational areas and checking local notices improves safety.