Oulujoki River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Oulujoki River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Oulujoki River today is 18.4°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 |
|---|---|---|---|
| JUL 14 | 18.8°C | 16.0°C | |
| JUL 15 | 19.6°C | 16.0°C | |
| JUL 16 | 19.6°C | 16.0°C | |
| JUL 17 | 19.5°C | 16.0°C | |
| JUL 18 | 19.7°C | 16.0°C | |
| JUL 19 | 19.2°C | 16.0°C | |
| JUL 20 | 19.2°C | 16.0°C | |
| JUL 21 | 18.4°C | 16.0°C | |
| JUL 22 | 16.0°C | 18.3°C | |
| JUL 23 | 16.0°C | 18.2°C | |
| JUL 24 | 16.0°C | 18.0°C | |
| JUL 25 | 16.0°C | 17.9°C | |
| JUL 26 | 16.0°C | 17.8°C | |
| JUL 27 | 16.0°C | 17.7°C | |
| JUL 28 | 16.0°C | 17.6°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 | 0°C | 3°C |
| February | 0°C | 0°C | 3°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 2°C | 4°C |
| May | 1°C | 6°C | 10°C |
| June | 8°C | 12°C | 17°C |
| July | 11°C | 16°C | 20°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 | 4°C | 7°C |
| December | 0°C | 1°C | 4°C |
Oulujoki River: Water Temperature by Location
Oulujoki River: Weather Forecast
July 22
July 23
July 24
July 25
July 26
July 27
Location & Local Information
Source Oulujärvi
• location Vaala, Finland
• coordinates 64°33′N 026°50′E
• elevation 122 m (400 ft)
Mouth Bothnian Bay
• location Oulu, Finland
• coordinates 65°01′N 025°27′E
• elevation 0 m (0 ft)
Length 107 km (66 mi)
The Oulujoki River flows through North Ostrobothnia in northern Finland, connecting Lake Oulujärvi to the Gulf of Bothnia at Oulu. It is a wide and regulated river system with several hydroelectric dams, yet many sections still feature calm water suitable for recreation. The water temperature in Oulujoki varies greatly with the season. In spring, after the ice melts in April or early May, the surface temperature is typically around 4–7 °C (39–45 °F). During early summer, it rises to 13–16 °C (55–61 °F), and in July, the warmest period, the water reaches 17–20 °C (63–68 °F). In sheltered and shallow areas, temperatures may briefly reach 21–22 °C (70–72 °F). By late September, the river cools again below 10 °C (50 °F).
Swimming in the Oulujoki River is allowed, and there are several designated swimming spots near Oulu and smaller towns along the river. The water quality is generally good, though it may appear slightly brown due to natural humus from upstream lakes and forests. Calm stretches near riverbanks are safe for swimming, while areas near power plants or strong currents are not recommended. During summer, Oulujoki offers refreshing swimming opportunities with easy access and scenic northern surroundings.