Iso-Vietonen Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Iso-Vietonen Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Iso-Vietonen Lake today is 4.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters. 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 |
|---|---|---|---|
| OCT 4 | 5.3°C | 6.0°C | |
| OCT 5 | 5.2°C | 6.0°C | |
| OCT 6 | 5.0°C | 6.0°C | |
| OCT 7 | 5.1°C | 6.0°C | |
| OCT 8 | 5.3°C | 6.0°C | |
| OCT 9 | 5.0°C | 6.0°C | |
| OCT 10 | 4.5°C | 6.0°C | |
| OCT 11 | 4.7°C | 6.0°C | |
| OCT 12 | 6.0°C | 4.8°C | |
| OCT 13 | 6.0°C | 4.8°C | |
| OCT 14 | 6.0°C | 4.9°C | |
| OCT 15 | 6.0°C | 5.0°C | |
| OCT 16 | 6.0°C | 5.0°C | |
| OCT 17 | 6.0°C | 5.1°C | |
| OCT 18 | 6.0°C | 5.2°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 | 0°C | 4°C |
| February | 0°C | 0°C | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 3°C | 6°C |
| May | 2°C | 7°C | 12°C |
| June | 11°C | 17°C | 22°C |
| July | 14°C | 20°C | 25°C |
| August | 12°C | 18°C | 23°C |
| September | 8°C | 13°C | 19°C |
| October | 2°C | 6°C | 9°C |
| November | 0°C | 3°C | 6°C |
| December | 0°C | 0°C | 4°C |
Iso-Vietonen Lake: Water Temperature by Location
Iso-Vietonen Lake: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Iso-Vietonen, situated in the Lapland region of Finland, is typical of the northern water bodies that provide ample opportunities for wilderness recreation. Swimming is permitted along all accessible non-private shoreline areas during the ice-free season, upheld by the national Everyman’s Rights. This traditional right allows public access to nature, including water bodies, for recreational use, provided the natural environment is respected and private residences are not disturbed. The lake’s waters are known for their high quality, offering a clean and safe, though predictably cold, swimming experience in the vast Lapland landscape.
The water temperature in Iso-Vietonen is defined by the Arctic climate, with a brief window of warmer water. The lake is generally ice-covered for much of the year, from around October to May, during which time the water beneath the thick ice mass maintains a frigid temperature between 0∘C and 4∘C. The short summer provides the only chance for casual swimming; in July, the surface temperature typically reaches a maximum range of 15∘C to 19∘C in shallower areas. Outside of this peak, the water remains too cool for comfortable recreational bathing, appealing mainly to dedicated ice or cold-water swimmers.