Smith Mountain Lake Water Temperature

(Today) 2025

26.9°C / 80.5°F

The water will feel hot. Water temperature similar to a heated indoor swimming pool.

Current weather

22°C / 72°F
(scattered clouds)
Partly cloudy
Wind
4 mph
Humidity
75%

The measurements for the water temperature in Smith Mountain Lake, Virginia are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Smith Mountain Lake water temperature derived from many years of historical sea surface temperature data.

Smith Mountain Lake average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Smith Mountain Lake
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 7.4 7.5 7.4 9.2 12.1 19.2 24.2 25.2 23 17.6 13.6 8.6
Max °C 10.6 9.4 9.8 14.4 19.8 25.1 27.6 27.4 25.9 23.8 18.2 14.2
Min °F 46.6 46.2 46.3 50.6 56.8 68.9 76.9 78.2 74.5 66.2 58.3 49.7
Max °F 49.8 48.1 48.7 55.8 64.5 74.8 80.3 80.4 77.4 72.4 62.9 55.3

The warmest water temperature is in August with an average around 79.3°F / 26.3°C. The coldest month is February with an average water temperature of 47.1°F / 8.4°C.

7 day tide forecast for Smith Mountain Lake

FriSatSunMonTueWedThu
  • Low 6:57am
    (0.2m)
  • High 12:07pm
    (0.84m)
  • Low 6:37pm
    (0.16m)
  • High 12:30am
    (1m)
  • Low 7:52am
    (0.2m)
  • High 1:01pm
    (0.83m)
  • Low 7:23pm
    (0.17m)
  • High 1:17am
    (1m)
  • Low 8:45am
    (0.18m)
  • High 1:52pm
    (0.83m)
  • Low 8:14pm
    (0.18m)
  • High 2:03am
    (1.01m)
  • Low 9:35am
    (0.16m)
  • High 2:41pm
    (0.84m)
  • Low 9:06pm
    (0.18m)
  • High 2:47am
    (1.01m)
  • Low 10:22am
    (0.15m)
  • High 3:27pm
    (0.85m)
  • Low 9:57pm
    (0.17m)
  • High 3:28am
    (1.02m)
  • Low 11:07am
    (0.13m)
  • High 4:09pm
    (0.86m)
  • Low 10:46pm
    (0.16m)
  • High 4:08am
    (1.03m)
  • Low 11:50am
    (0.11m)
  • High 4:48pm
    (0.88m)
  • Low 11:33pm
    (0.15m)
7 day tide times for Smith Mountain Lake

*These tide times are estimates based on the nearest accurate location (Petersburg, Appomattox River, James River, Virginia) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.