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 9.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing can be used. 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 14 | 10.8°C | 13.0°C | |
| SEP 15 | 10.8°C | 13.0°C | |
| SEP 16 | 10.6°C | 13.0°C | |
| SEP 17 | 10.0°C | 13.0°C | |
| SEP 18 | 9.3°C | 13.0°C | |
| SEP 19 | 9.7°C | 13.0°C | |
| SEP 20 | 9.8°C | 13.0°C | |
| SEP 21 | 9.2°C | 13.0°C | |
| SEP 22 | 13.0°C | 9.4°C | |
| SEP 23 | 13.0°C | 9.6°C | |
| SEP 24 | 13.0°C | 9.8°C | |
| SEP 25 | 13.0°C | 10.0°C | |
| SEP 26 | 13.0°C | 10.2°C | |
| SEP 27 | 13.0°C | 10.3°C | |
| SEP 28 | 13.0°C | 10.5°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 | 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
September 21
September 22
September 23
September 24
September 25
September 26
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.