Bluestone Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Bluestone Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Bluestone Lake today is 25.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 |
|---|---|---|---|
| AUG 4 | 25.5°C | 26.0°C | |
| AUG 5 | 25.5°C | 26.0°C | |
| AUG 6 | 25.7°C | 26.0°C | |
| AUG 7 | 26.4°C | 26.0°C | |
| AUG 8 | 26.6°C | 26.0°C | |
| AUG 9 | 26.7°C | 26.0°C | |
| AUG 10 | 25.8°C | 26.0°C | |
| AUG 11 | 25.8°C | 26.0°C | |
| AUG 12 | 26.0°C | 25.8°C | |
| AUG 13 | 26.0°C | 25.8°C | |
| AUG 14 | 26.0°C | 25.8°C | |
| AUG 15 | 26.0°C | 25.8°C | |
| AUG 16 | 26.0°C | 25.9°C | |
| AUG 17 | 26.0°C | 25.9°C | |
| AUG 18 | 26.0°C | 25.9°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 | 2°C | 10°C | 17°C |
| February | 1°C | 10°C | 19°C |
| March | 3°C | 11°C | 19°C |
| April | 9°C | 17°C | 25°C |
| May | 14°C | 20°C | 26°C |
| June | 17°C | 22°C | 27°C |
| July | 23°C | 28°C | 32°C |
| August | 22°C | 26°C | 30°C |
| September | 21°C | 26°C | 30°C |
| October | 14°C | 20°C | 26°C |
| November | 5°C | 14°C | 22°C |
| December | 2°C | 6°C | 10°C |
Bluestone Lake: Water Temperature by Location
Bluestone Lake: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Bluestone Lake’s surface water temperatures vary substantially through the year and with depth. In spring (March–May) surface readings commonly range from about 40–60°F (4–16°C) as warming progresses after winter. Peak summer surface temperatures (June–August) will often be in the low to upper 70s°F, roughly 21–27°C, and on warm, calm days may approach the low 80s°F (about 28°C) in shallow bays. Fall cooling (September–November) typically brings surface values back into the 50–70°F range (10–21°C). In winter the lake surface can be near freezing to the low 40s°F, approximately 0–5°C, with much colder temperatures in deeper water due to stratification. These are general seasonal ranges and actual conditions shift with weather, inflows, and water level.
Swimming at Bluestone is possible but generally limited to designated and managed areas rather than unrestricted shorelines. The reservoir has steep banks, variable water levels, submerged hazards and active boat traffic in many zones, so broad open-water swimming on the main lake is often discouraged and some sites are regulated by park or Corps authorities. State park beaches and marked recreation areas are where swimming is typically allowed when staffed or posted open, because they offer safer, monitored access and clearer separation from boat channels and underwater hazards.