Pielinen Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Pielinen Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Pielinen Lake today is 18.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 23 | 16.9°C | 17.0°C | |
| JUN 24 | 16.5°C | 17.0°C | |
| JUN 25 | 16.9°C | 17.0°C | |
| JUN 26 | 17.1°C | 17.0°C | |
| JUN 27 | 17.2°C | 17.0°C | |
| JUN 28 | 17.4°C | 17.0°C | |
| JUN 29 | 17.4°C | 17.0°C | |
| JUN 30 | 18.3°C | 17.0°C | |
| JUL 1 | 20.0°C | 18.6°C | |
| JUL 2 | 20.0°C | 18.7°C | |
| JUL 3 | 20.0°C | 18.7°C | |
| JUL 4 | 20.0°C | 18.8°C | |
| JUL 5 | 20.0°C | 18.9°C | |
| JUL 6 | 20.0°C | 19.0°C | |
| JUL 7 | 20.0°C | 19.0°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 | 14°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 |
Pielinen Lake: Water Temperature by Location
Pielinen Lake: Weather Forecast
July 1
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July 3
July 4
July 5
July 6
Location & Local Information
Lake Pielinen, located in North Karelia in eastern Finland, is one of the country’s largest and most scenic lakes. Surrounded by forested hills and national parks such as Koli, it is known for its clean, deep waters and natural beauty. Because of its size and depth, Pielinen warms relatively slowly in early summer but retains heat well into autumn. In spring, after the ice melts in May, the surface temperature is around 4–7 °C (39–45 °F). During early summer, it rises to 13–16 °C (55–61 °F), and in July, the warmest month, it typically reaches 18–21 °C (64–70 °F). In shallow bays, temperatures can briefly reach 22–23 °C (72–73 °F). By September, the water cools below 10 °C (50 °F), and the lake freezes again by late November.
Swimming in Lake Pielinen is allowed and very popular in summer. The water is clear and suitable for bathing, with several public beaches near Lieksa and Nurmes offering safe access. While the lake’s open stretches can feel cool due to wind and depth, sheltered shores are pleasant for swimming and recreation. The combination of fresh water, natural surroundings, and clean air makes Pielinen an attractive destination for summer swimming in eastern Finland.