Upper Saranac Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Upper Saranac Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Upper Saranac Lake today is 18.2°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 | 18.4°C | 19.0°C | |
| SEP 14 | 17.8°C | 19.0°C | |
| SEP 15 | 18.7°C | 19.0°C | |
| SEP 16 | 18.7°C | 19.0°C | |
| SEP 17 | 18.2°C | 19.0°C | |
| SEP 18 | 18.2°C | 19.0°C | |
| SEP 19 | 18.6°C | 19.0°C | |
| SEP 20 | 18.9°C | 19.0°C | |
| SEP 21 | 19.0°C | 18.2°C | |
| SEP 22 | 19.0°C | 18.3°C | |
| SEP 23 | 19.0°C | 18.3°C | |
| SEP 24 | 19.0°C | 18.4°C | |
| SEP 25 | 19.0°C | 18.4°C | |
| SEP 26 | 19.0°C | 18.4°C | |
| SEP 27 | 19.0°C | 18.5°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 | 0°C | 2°C | 4°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 0°C | 6°C | 12°C |
| May | 6°C | 12°C | 16°C |
| June | 12°C | 16°C | 20°C |
| July | 20°C | 25°C | 29°C |
| August | 20°C | 23°C | 25°C |
| September | 16°C | 19°C | 22°C |
| October | 11°C | 14°C | 17°C |
| November | 3°C | 9°C | 13°C |
| December | 0°C | 4°C | 7°C |
Upper Saranac Lake: Water Temperature by Location
Upper Saranac Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Upper Saranac Lake, in New York’s Adirondacks, experiences a wide range of surface water temperatures through the year. In spring (roughly April–May) surface temperatures commonly sit between about 35–60°F (2–16°C) as ice-out and warming progress. Summer (June–August) brings the warmest surface readings, often in the 60–75°F (15–24°C) range on sunny, calm days, though heat waves can push temperatures a few degrees higher. By early fall (September–October) the lake typically cools to around 50–65°F (10–18°C). During winter months the surface is at or near freezing when ice forms, roughly 32–40°F (0–4°C), and deeper water remains colder than the surface year-round.
Swimming in Upper Saranac Lake is commonly allowed and is a popular recreational activity in warm months because many shorelines, camps and public access points provide places to enter the water and the surface temperatures are pleasant in summer. Swimmers should be aware that deeper water stays much colder, there are no universal lifeguards at most sites, and boat traffic can create hazards. Water quality is generally suitable for recreation, but seasonal conditions, sudden weather changes and cold-water shock risks mean checking local advisories, choosing supervised or sheltered spots, and using flotation if uncertain are sensible precautions.