Great Sacandaga Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Great Sacandaga Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Great Sacandaga Lake today is 17.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 |
|---|---|---|---|
| SEP 13 | 18.6°C | 19.8°C | |
| SEP 14 | 18.2°C | 19.8°C | |
| SEP 15 | 18.2°C | 19.8°C | |
| SEP 16 | 18.4°C | 19.8°C | |
| SEP 17 | 16.8°C | 19.8°C | |
| SEP 18 | 16.9°C | 19.8°C | |
| SEP 19 | 18.3°C | 19.8°C | |
| SEP 20 | 18.3°C | 19.8°C | |
| SEP 21 | 19.8°C | 17.4°C | |
| SEP 22 | 19.8°C | 17.6°C | |
| SEP 23 | 19.8°C | 17.7°C | |
| SEP 24 | 19.8°C | 17.8°C | |
| SEP 25 | 19.8°C | 17.9°C | |
| SEP 26 | 19.8°C | 18.1°C | |
| SEP 27 | 19.8°C | 18.2°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 | 4°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 3°C | 8°C | 12°C |
| May | 11°C | 14°C | 17°C |
| June | 15°C | 18°C | 22°C |
| July | 18°C | 24°C | 29°C |
| August | 19°C | 22°C | 25°C |
| September | 16°C | 20°C | 24°C |
| October | 11°C | 15°C | 18°C |
| November | 4°C | 9°C | 13°C |
| December | 0°C | 4°C | 7°C |
Great Sacandaga Lake: Water Temperature by Location
Great Sacandaga Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Great Sacandaga Lake, a large reservoir in upstate New York, experiences marked seasonal shifts in surface temperature. In spring the lake often runs cool, roughly 40–60°F (4–16°C) as snowmelt and cool air dominate. By mid‑ to late summer surface readings commonly rise into the high 60s to upper 70s °F, about 20–26°C, though shallow bays warm more quickly and deeper water remains noticeably colder. Autumn brings a steady cooling to roughly 50–64°F (10–18°C) before winter when the surface approaches freezing and can fall into the low 30s or below (about 0 to −2°C) where ice can form. Temperatures vary by depth, wind exposure and inflows, so local conditions may differ from these typical ranges.
Swimming at Great Sacandaga Lake is generally possible and is commonly done during the warm months at public and private shorelines; permitted areas are determined by local authorities and posted signage. The main reasons swimming is concentrated in summer are safety and comfort: warm surface temperatures make casual swimming feasible, while colder shoulder seasons increase risk of cold‑water shock and hypothermia. Boat traffic, underwater hazards, and restricted zones (for example near dams or inlets) further limit where swimming is advisable, so visitors should follow local rules, check water conditions and use life jackets as appropriate.