Lake Jonkeri — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Jonkeri, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Jonkeri today is 9.7°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 | 11.8°C | 13.0°C | |
| SEP 15 | 11.4°C | 13.0°C | |
| SEP 16 | 11.2°C | 13.0°C | |
| SEP 17 | 10.9°C | 13.0°C | |
| SEP 18 | 10.1°C | 13.0°C | |
| SEP 19 | 10.3°C | 13.0°C | |
| SEP 20 | 10.0°C | 13.0°C | |
| SEP 21 | 9.7°C | 13.0°C | |
| SEP 22 | 13.0°C | 9.9°C | |
| SEP 23 | 13.0°C | 10.0°C | |
| SEP 24 | 13.0°C | 10.2°C | |
| SEP 25 | 13.0°C | 10.4°C | |
| SEP 26 | 13.0°C | 10.5°C | |
| SEP 27 | 13.0°C | 10.7°C | |
| SEP 28 | 13.0°C | 10.9°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 | 0°C | 2°C | 5°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 2°C | 5°C |
| May | 3°C | 8°C | 13°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 | 4°C | 8°C | 11°C |
| November | 0°C | 3°C | 6°C |
| December | 0°C | 2°C | 5°C |
Lake Jonkeri: Water Temperature by Location
Lake Jonkeri: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Lake Jonkeri, located in the Kainuu region, is characteristic of northern Finnish lakes, often surrounded by serene wilderness. Swimming is freely permitted along its accessible shorelines throughout the open-water season, secured by the Finnish Everyman’s Rights, which guarantees public access to the water for recreational use, provided respectful distance from private dwellings and the preservation of the environment are maintained. The lake's clear, clean water, typical of the area's water bodies, makes for a refreshing and highly enjoyable swimming experience during the warmer months.
The water temperature of Jonkeri is heavily influenced by the northern climate and its long winters. The lake is generally frozen from around November to April, during which period the water beneath the ice stabilizes in the frigid range of 0∘C to 4∘C. The main season for comfortable swimming is brief, concentrated in July and early August. During this warm peak, the surface water temperature typically rises to range between 16∘C and 21∘C. Outside of this short summer window, the water is cool, mainly suitable for those accustomed to cold water or partaking in traditional Finnish cold-water plunging after a sauna.