Vantaanjoki River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Vantaanjoki River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Vantaanjoki River today is 14.4°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 | 15.0°C | |
| JUN 4 | 12.2°C | 15.0°C | |
| JUN 5 | 13.6°C | 15.0°C | |
| JUN 6 | 13.7°C | 15.0°C | |
| JUN 7 | 14.0°C | 15.0°C | |
| JUN 8 | 14.0°C | 15.0°C | |
| JUN 10 | 14.4°C | 15.0°C | |
| JUN 11 | 15.0°C | 14.4°C | |
| JUN 12 | 15.0°C | 14.5°C | |
| JUN 13 | 15.0°C | 14.5°C | |
| JUN 14 | 15.0°C | 14.5°C | |
| JUN 15 | 15.0°C | 14.6°C | |
| JUN 16 | 15.0°C | 14.6°C | |
| JUN 17 | 15.0°C | 14.6°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 | 2°C | 5°C |
| April | 0°C | 4°C | 7°C |
| May | 5°C | 9°C | 14°C |
| June | 10°C | 15°C | 19°C |
| July | 11°C | 16°C | 20°C |
| August | 12°C | 17°C | 21°C |
| September | 9°C | 14°C | 18°C |
| October | 4°C | 8°C | 10°C |
| November | 0°C | 4°C | 7°C |
| December | 0°C | 2°C | 5°C |
Vantaanjoki River: Water Temperature by Location
Vantaanjoki River: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
The Vantaanjoki River flows through the Uusimaa region in southern Finland, beginning in Hausjärvi and ending in the Gulf of Finland near Helsinki. The river’s water temperature varies throughout the year depending on the weather, flow rate, and season. In spring, after the ice melts, the temperature is around 5–8 °C (41–46 °F). During early summer, it rises to 14–17 °C (57–63 °F), and in July, the warmest month, the river usually reaches 18–21 °C (64–70 °F). On very hot days, shallow areas may temporarily reach 22–23 °C (72–73 °F). In autumn, the temperature falls below 10 °C (50 °F), and during winter, many sections partly freeze or stay near 0 °C (32 °F).
Swimming in the Vantaanjoki is officially allowed in designated areas, although it is not as common as lake swimming due to varying water quality and currents. In summer, the water is generally safe for bathing, especially near maintained swimming spots such as those around Helsinki and Vantaa. The river offers opportunities for swimming, canoeing, and fishing, and during warm months, locals enjoy cooling off in its calm stretches. The Vantaanjoki remains an important natural and recreational feature in the Helsinki metropolitan area.