Millinocket Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Millinocket Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Millinocket Lake today is 24.1°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 |
|---|---|---|---|
| JUL 14 | 23.2°C | 21.4°C | |
| JUL 15 | 25.2°C | 21.4°C | |
| JUL 16 | 25.1°C | 21.4°C | |
| JUL 17 | 25.2°C | 21.4°C | |
| JUL 18 | 25.0°C | 21.4°C | |
| JUL 19 | 24.5°C | 21.4°C | |
| JUL 20 | 24.4°C | 21.4°C | |
| JUL 21 | 24.6°C | 21.4°C | |
| JUL 22 | 21.4°C | 24.0°C | |
| JUL 23 | 21.4°C | 23.8°C | |
| JUL 24 | 21.4°C | 23.7°C | |
| JUL 25 | 21.4°C | 23.6°C | |
| JUL 26 | 21.4°C | 23.4°C | |
| JUL 27 | 21.4°C | 23.3°C | |
| JUL 28 | 21.4°C | 23.2°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 | 1°C | 5°C | 7°C |
| March | 1°C | 4°C | 7°C |
| April | 0°C | 1°C | 4°C |
| May | 3°C | 7°C | 11°C |
| June | 9°C | 13°C | 17°C |
| July | 16°C | 21°C | 26°C |
| August | 19°C | 22°C | 24°C |
| September | 17°C | 19°C | 22°C |
| October | 9°C | 14°C | 18°C |
| November | 1°C | 6°C | 11°C |
| December | 0°C | 2°C | 5°C |
Millinocket Lake: Water Temperature by Location
Millinocket Lake: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
Millinocket Lake in Maine experiences a wide range of water temperatures through the year. In spring, as ice melts, surface temperatures commonly sit around 34–50°F (1–10°C). By early summer the lake often warms to about 50–65°F (10–18°C), and during the warmest weeks of July and August surface readings can reach roughly 65–75°F (18–24°C), with shallow bays sometimes a few degrees warmer. In autumn the water cools back toward 50–40°F (10–4°C) as air temperatures drop, and in winter the surface typically approaches freezing, near 32°F (0°C), with ice cover common on much of the lake. Deeper water stays substantially colder year-round, so temperature varies with depth, location and weather.
Swimming is generally allowed as a recreational activity on Millinocket Lake and is most feasible during the summer months when surface temperatures are in the comfortable mid‑60s to low‑70s °F (around 18–24°C). Because the lake is remote and natural, there are often no lifeguards or designated swimming facilities, and cold water, sudden depth changes, submerged hazards and boat traffic can increase risk. Ice makes swimming unsafe through winter and early spring. Visitors should check local signage or town guidance, use appropriate flotation when needed, and choose sheltered, warm shallows for safer swimming.