Pääjärvi — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Pääjärvi, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Pääjärvi today is 20.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| JUL 14 | 20.1°C | 20.0°C | |
| JUL 15 | 21.9°C | 20.0°C | |
| JUL 16 | 21.9°C | 20.0°C | |
| JUL 17 | 22.2°C | 20.0°C | |
| JUL 18 | 22.5°C | 20.0°C | |
| JUL 19 | 21.9°C | 20.0°C | |
| JUL 20 | 21.8°C | 20.0°C | |
| JUL 21 | 21.3°C | 20.0°C | |
| JUL 22 | 20.0°C | 20.8°C | |
| JUL 23 | 20.0°C | 20.7°C | |
| JUL 24 | 20.0°C | 20.7°C | |
| JUL 25 | 20.0°C | 20.6°C | |
| JUL 26 | 20.0°C | 20.6°C | |
| JUL 27 | 20.0°C | 20.6°C | |
| JUL 28 | 20.0°C | 20.5°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 | 3°C | 6°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 4°C | 7°C |
| May | 5°C | 10°C | 15°C |
| June | 10°C | 15°C | 21°C |
| July | 14°C | 20°C | 25°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 5°C | 9°C | 12°C |
| November | 1°C | 5°C | 8°C |
| December | 0°C | 3°C | 6°C |
Pääjärvi: Water Temperature by Location
Pääjärvi: Weather Forecast
July 22
July 23
July 24
July 25
July 26
July 27
Location & Local Information
Pääjärvi, a notable lake located in the Kanta-Häme region, is one of Finland’s best-studied lakes due to the nearby Lammi Biological Station. Swimming is widely permissible along its accessible shores throughout the open-water season, a right guaranteed by the national Everyman’s Rights. This principle ensures the public can access and use waterways for recreational purposes, provided they respect the shoreline environment and privacy regulations. The lake offers numerous swimming opportunities, from public beaches to secluded spots, all benefiting from the generally high quality of the deep lake’s water.
The water temperature of Pääjärvi exhibits typical Southern Finnish seasonality. The lake is generally frozen from December to April/early May, during which the water beneath the ice stabilizes in the cold range of 0∘C to 4∘C. The most comfortable period for swimming occurs during the summer peak. In July and early August, the surface temperature typically warms to a pleasant range of 18∘C to 24∘C in the shallower areas, often exceeding the lower end of the range. Outside of this warm period, the water is cool, mainly attracting dedicated cold-water swimmers.