Lake Kero — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Kero, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Kero today is 3.4°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 | 4.1°C | 4.0°C | |
| OCT 5 | 4.0°C | 4.0°C | |
| OCT 6 | 3.8°C | 4.0°C | |
| OCT 7 | 3.8°C | 4.0°C | |
| OCT 8 | 4.0°C | 4.0°C | |
| OCT 9 | 3.8°C | 4.0°C | |
| OCT 10 | 3.2°C | 4.0°C | |
| OCT 11 | 3.4°C | 4.0°C | |
| OCT 12 | 4.0°C | 3.4°C | |
| OCT 13 | 4.0°C | 3.5°C | |
| OCT 14 | 4.0°C | 3.5°C | |
| OCT 15 | 4.0°C | 3.5°C | |
| OCT 16 | 4.0°C | 3.6°C | |
| OCT 17 | 4.0°C | 3.6°C | |
| OCT 18 | 4.0°C | 3.6°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 | 3°C |
| February | 0°C | 2°C | 3°C |
| March | 0°C | 2°C | 3°C |
| April | 0°C | 2°C | 5°C |
| May | 2°C | 7°C | 12°C |
| June | 8°C | 13°C | 19°C |
| July | 13°C | 19°C | 24°C |
| August | 11°C | 17°C | 22°C |
| September | 6°C | 11°C | 17°C |
| October | 0°C | 4°C | 7°C |
| November | 0°C | 3°C | 6°C |
| December | 0°C | 3°C | 6°C |
Lake Kero: Water Temperature by Location
Lake Kero: Weather Forecast
October 12
October 13
October 14
October 15
Location & Local Information
Lake Kero (Iso-Kero) is a body of water in the northern part of North Ostrobothnia, and like most Finnish lakes, offers ample opportunity for swimming due to the country's Everyman’s Rights. This principle ensures the public can access and swim in natural waters without seeking permission, provided they respect the environment. While the lake's water is clean and suitable for swimming, caution should be exercised due to its remote location and the short swimming season characteristic of the northern climate.
The water temperature of Lake Kero is intensely seasonal. During the long winter, approximately from November to May, the lake is generally frozen solid, and the water beneath the ice remains at a very cold temperature range of 0∘C to 4∘C. Comfortable surface swimming is only practical during the brief peak summer month of July, when the water can warm up to an approximate range of 18∘C to 21∘C in shallower, sun-exposed areas. Outside of this warm period, the water is too cold for casual bathing, and is mainly used by those engaging in the invigorating tradition of cold-water swimming.