Iso-Pyhäntä Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Iso-Pyhäntä Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Iso-Pyhäntä Lake today is 11.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit 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 | 12.7°C | 13.0°C | |
| SEP 15 | 12.6°C | 13.0°C | |
| SEP 16 | 12.4°C | 13.0°C | |
| SEP 17 | 11.8°C | 13.0°C | |
| SEP 18 | 11.1°C | 13.0°C | |
| SEP 19 | 11.0°C | 13.0°C | |
| SEP 20 | 11.4°C | 13.0°C | |
| SEP 21 | 11.1°C | 13.0°C | |
| SEP 22 | 13.0°C | 11.2°C | |
| SEP 23 | 13.0°C | 11.3°C | |
| SEP 24 | 13.0°C | 11.4°C | |
| SEP 25 | 13.0°C | 11.5°C | |
| SEP 26 | 13.0°C | 11.6°C | |
| SEP 27 | 13.0°C | 11.7°C | |
| SEP 28 | 13.0°C | 11.8°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 | 4°C |
| February | 0°C | 2°C | 4°C |
| March | 0°C | 3°C | 6°C |
| April | 0°C | 2°C | 5°C |
| May | 2°C | 7°C | 13°C |
| June | 9°C | 14°C | 20°C |
| July | 13°C | 19°C | 24°C |
| August | 12°C | 18°C | 23°C |
| September | 8°C | 13°C | 19°C |
| October | 4°C | 8°C | 11°C |
| November | 1°C | 5°C | 8°C |
| December | 0°C | 2°C | 5°C |
Iso-Pyhäntä Lake: Water Temperature by Location
Iso-Pyhäntä Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Iso-Pyhäntä, a substantial lake in the Kainuu region, offers typical Finnish lake swimming in a pristine northern environment. Swimming is freely permitted along its shores throughout the open-water season, a right established by the Finnish Everyman’s Rights. This principle ensures public access to the water for recreation, provided private property is respected and the environment is protected. With a notable average depth of over 7 meters, the lake is known for having clean, refreshing water, making it a safe and invigorating spot for summer bathing.
The lake’s water temperature is strongly influenced by the long, cold winters in the north. Iso-Pyhäntä is typically frozen from around December to April, with the water under the ice remaining at a consistent, cold 0∘C to 4∘C. The season for comfortably warm swimming is very brief, concentrated in July and early August. During this summer peak, the surface temperature generally warms up to range between 16∘C and 21∘C. Outside of this narrow window, the water is cool, mainly appealing to dedicated cold-water enthusiasts or those who enjoy a quick, bracing dip after a sauna.