Lake Osakis — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Osakis, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Osakis today is 20°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 |
|---|---|---|---|
| JUN 2 | 18.8°C | 18.0°C | |
| JUN 3 | 19.1°C | 18.0°C | |
| JUN 4 | 19.1°C | 18.0°C | |
| JUN 5 | 18.5°C | 18.0°C | |
| JUN 6 | 19.2°C | 18.0°C | |
| JUN 7 | 19.0°C | 18.0°C | |
| JUN 8 | 19.0°C | 18.0°C | |
| JUN 10 | 18.0°C | 19.9°C | |
| JUN 11 | 18.0°C | 19.8°C | |
| JUN 12 | 18.0°C | 19.7°C | |
| JUN 13 | 18.0°C | 19.6°C | |
| JUN 14 | 18.0°C | 19.5°C | |
| JUN 15 | 18.0°C | 19.4°C | |
| JUN 16 | 18.0°C | 19.3°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 | 3°C | 8°C | 12°C |
| February | 3°C | 9°C | 15°C |
| March | 1°C | 9°C | 17°C |
| April | 2°C | 11°C | 20°C |
| May | 6°C | 14°C | 21°C |
| June | 14°C | 18°C | 22°C |
| July | 17°C | 20°C | 23°C |
| August | 21°C | 25°C | 28°C |
| September | 17°C | 20°C | 22°C |
| October | 5°C | 12°C | 19°C |
| November | 4°C | 8°C | 11°C |
| December | 2°C | 7°C | 11°C |
Lake Osakis: Water Temperature by Location
Lake Osakis: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Lake Osakis experiences pronounced seasonal swings in water temperature typical of central Minnesota lakes. In late winter the surface is usually at or near freezing around 32°F (0°C), with deeper water remaining slightly warmer, often in the mid-30s to upper 30s °F (1–4°C). During spring the lake warms from the low 30s to roughly the upper 40s and 50s °F (8–15°C) as ice melts and the water mixes. Summer surface temperatures commonly reach the high 60s to upper 70s °F (20–26°C), and on warm, calm days can approach or exceed 80°F (27°C) in shallow bays, while deeper waters stay much cooler. In fall the surface cools back through the 50s and 40s °F (10–5°C) before refreezing.
Swimming in Lake Osakis is generally permitted and is a popular summer activity where public access sites and beaches exist, because summer surface temperatures are often comfortable for recreation. However, seasonal considerations affect safety and access: cold water in spring and fall increases risk of cold shock and hypothermia, and winter conditions require ice safety expertise. Algal blooms or elevated bacterial counts following heavy rains can prompt short-term advisories that limit swimming, so users typically follow local health notices and posted guidance when planning to swim.