Black Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Black Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Black Lake today is 19.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 3 | 15.7°C | 18.9°C | |
| JUN 4 | 16.0°C | 18.9°C | |
| JUN 5 | 17.0°C | 18.9°C | |
| JUN 6 | 17.5°C | 18.9°C | |
| JUN 7 | 18.0°C | 18.9°C | |
| JUN 8 | 18.6°C | 18.9°C | |
| JUN 11 | 18.9°C | 19.3°C | |
| JUN 12 | 18.9°C | 19.3°C | |
| JUN 13 | 18.9°C | 19.2°C | |
| JUN 14 | 18.9°C | 19.2°C | |
| JUN 15 | 18.9°C | 19.2°C | |
| JUN 16 | 18.9°C | 19.2°C | |
| JUN 17 | 18.9°C | 19.2°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 | 0°C | 2°C | 5°C |
| February | 0°C | 1°C | 4°C |
| March | 0°C | 3°C | 7°C |
| April | 4°C | 9°C | 15°C |
| May | 10°C | 14°C | 19°C |
| June | 15°C | 19°C | 22°C |
| July | 19°C | 25°C | 30°C |
| August | 21°C | 25°C | 29°C |
| September | 18°C | 23°C | 27°C |
| October | 11°C | 15°C | 18°C |
| November | 5°C | 9°C | 12°C |
| December | 1°C | 4°C | 6°C |
Black Lake: Water Temperature by Location
Black Lake: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Black Lake in northern New York experiences wide seasonal swings in surface water temperature. In spring the lake typically runs cold as snowmelt and cool air dominate, with surface temperatures often between the low 40s and mid‑50s °F (5–13 °C). Summer brings the warmest conditions, and shallow bays and the surface can warm into the high 60s to mid‑70s °F (20–24 °C), occasionally reaching the upper 70s °F (25–26 °C) on hot, calm days. By autumn the surface cools again, commonly falling through the 50s and 40s °F (10–7 °C) as the season progresses. In winter the lake is near freezing at the surface (around 32 °F / 0 °C) and often develops ice cover, making any water exposure hazardous.
Swimming at Black Lake is generally pursued in the warmer months where shoreline access and public launch sites exist because surface temperatures in summer become comfortable for recreation. However, local conditions control safety: early spring and late‑season water is cold enough to cause cold‑water shock, and winter ice makes swimming unsafe. Boat traffic, sudden wind-driven waves, submerged structure, and occasional algal or bacterial advisories mean swimmers should use designated spots, heed posted notices, and check recent local guidance before entering the water.