Perhonjoki River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Perhonjoki River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Perhonjoki River today is 13.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 3 | 11.8°C | 14.0°C | |
| JUN 4 | 12.2°C | 14.0°C | |
| JUN 5 | 12.9°C | 14.0°C | |
| JUN 6 | 12.9°C | 14.0°C | |
| JUN 7 | 13.2°C | 14.0°C | |
| JUN 8 | 13.4°C | 14.0°C | |
| JUN 10 | 13.4°C | 14.0°C | |
| JUN 11 | 14.0°C | 13.4°C | |
| JUN 12 | 14.0°C | 13.5°C | |
| JUN 13 | 14.0°C | 13.5°C | |
| JUN 14 | 14.0°C | 13.5°C | |
| JUN 15 | 14.0°C | 13.6°C | |
| JUN 16 | 14.0°C | 13.6°C | |
| JUN 17 | 14.0°C | 13.6°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 | 1°C | 4°C |
| February | 0°C | 1°C | 4°C |
| March | 0°C | 1°C | 4°C |
| April | 0°C | 2°C | 5°C |
| May | 2°C | 7°C | 11°C |
| June | 9°C | 14°C | 18°C |
| July | 12°C | 17°C | 21°C |
| August | 10°C | 15°C | 19°C |
| September | 7°C | 11°C | 16°C |
| October | 3°C | 7°C | 9°C |
| November | 0°C | 2°C | 5°C |
| December | 0°C | 1°C | 4°C |
Perhonjoki River: Water Temperature by Location
Perhonjoki River: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
The Perhonjoki River flows through Central Ostrobothnia, originating from the lakes of Central Finland and winding toward the Gulf of Bothnia. It is a relatively narrow river with clear and cool water that reflects the changing northern climate. In spring, after the ice melts, the water remains cold at around 4–7 °C (39–45 °F). As summer progresses, the temperature rises gradually, reaching 14–17 °C (57–63 °F) in June and typically peaking at 18–21 °C (64–70 °F) in July. During heatwaves, shallow sections can momentarily warm up to 22–23 °C (72–73 °F). By autumn, the water cools below 10 °C (50 °F), and in winter the river partially freezes.
Swimming in the Perhonjoki is allowed, though it is best suited for experienced swimmers because of varying currents and water depth. In calm stretches near villages such as Perho and Veteli, locals enjoy bathing and cooling off during the warmest months. The water is clean, and the natural surroundings provide a quiet and refreshing environment. The river is also known for fishing and paddling, and during midsummer it offers pleasant opportunities for swimming in nature.