Brant Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Brant Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Brant Lake today is 19.5°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 |
|---|---|---|---|
| SEP 13 | 20.3°C | 18.6°C | |
| SEP 14 | 19.4°C | 18.6°C | |
| SEP 15 | 20.1°C | 18.6°C | |
| SEP 16 | 19.7°C | 18.6°C | |
| SEP 17 | 18.5°C | 18.6°C | |
| SEP 18 | 19.0°C | 18.6°C | |
| SEP 19 | 19.7°C | 18.6°C | |
| SEP 20 | 19.7°C | 18.6°C | |
| SEP 21 | 18.6°C | 19.5°C | |
| SEP 22 | 18.6°C | 19.4°C | |
| SEP 23 | 18.6°C | 19.4°C | |
| SEP 24 | 18.6°C | 19.3°C | |
| SEP 25 | 18.6°C | 19.3°C | |
| SEP 26 | 18.6°C | 19.2°C | |
| SEP 27 | 18.6°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 | 4°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 2°C | 7°C | 12°C |
| May | 8°C | 13°C | 16°C |
| June | 12°C | 17°C | 21°C |
| July | 18°C | 24°C | 29°C |
| August | 19°C | 22°C | 25°C |
| September | 15°C | 19°C | 23°C |
| October | 11°C | 14°C | 17°C |
| November | 3°C | 8°C | 13°C |
| December | 0°C | 4°C | 7°C |
Brant Lake: Water Temperature by Location
Brant Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Brant Lake, set in the southern Adirondacks of New York, is a relatively shallow glacial lake whose surface temperatures follow the regional seasonal cycle. In spring (April–May) surface readings commonly range from about 40–60°F (4–16°C) as runoff and cool air keep the water chilly. Summer highs (June–August) typically produce the warmest surface conditions, often around 65–78°F (18–26°C) on warm afternoons, though cooler pockets persist over deeper or shaded areas. By autumn (September–October) the lake cools again to roughly 50–65°F (10–18°C) before winter, when ice formation can bring temperatures down close to 32°F (0°C) beneath ice cover in the coldest months.
Swimming is a common activity on Brant Lake during the warmer months and is generally permitted where shoreline access is public or where property owners allow it; lifeguard and facility availability vary by location. The main limitation on swimming is temperature and seasonal ice: spring and late‑season water temperatures can be uncomfortably cold and pose risks of cold shock, while winter ice prevents open‑water swimming. Water quality and local rules can change, so swimmers should heed posted advisories, respect private property, and be mindful that deeper areas remain substantially cooler than surface readings.