Järvenpää — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Järvenpää, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Järvenpää today is 4.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters. 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 |
|---|---|---|---|
| NOV 4 | 5.1°C | 4.5°C | |
| NOV 5 | 4.6°C | 4.5°C | |
| NOV 6 | 5.1°C | 4.5°C | |
| NOV 7 | 5.3°C | 4.5°C | |
| NOV 8 | 4.2°C | 4.5°C | |
| NOV 9 | 3.8°C | 4.5°C | |
| NOV 10 | 4.0°C | 4.5°C | |
| NOV 11 | 3.9°C | 4.5°C | |
| NOV 12 | 4.5°C | 4.1°C | |
| NOV 13 | 4.5°C | 4.1°C | |
| NOV 14 | 4.5°C | 4.2°C | |
| NOV 15 | 4.5°C | 4.2°C | |
| NOV 16 | 4.5°C | 4.2°C | |
| NOV 17 | 4.5°C | 4.2°C | |
| NOV 18 | 4.5°C | 4.2°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 | 3°C | 6°C |
| April | 1°C | 5°C | 8°C |
| May | 5°C | 11°C | 17°C |
| June | 12°C | 18°C | 23°C |
| July | 13°C | 19°C | 24°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 |
Järvenpää: Weather Forecast
November 12
November 13
November 14
November 15
Location & Local Information
Lake Tuusula, or Tuusulanjärvi, which borders the city of Järvenpää in Uusimaa, is a vital natural feature, despite being shallow and historically prone to eutrophication. Swimming is permitted in the lake, particularly at designated public beaches within Järvenpää, following Finland’s Everyman’s Rights. These rights allow public access to natural waters for recreational use. Local municipalities actively monitor the lake’s water quality, including checking for bacterial levels and blue-green algae, especially during the summer months, to ensure the designated swimming areas are safe and hygienic for bathers.
The lake’s shallow depth (average around 3.2 m) allows its surface water to heat up rapidly in the summer. During the main swimming season, typically in July, surface water temperatures in the nearshore areas often range from 20∘C to 24∘C, sometimes reaching as high as 28∘C in intense heatwaves. In contrast, the lake is reliably ice-covered for at least four months, generally from December to April, when the water temperature beneath the ice remains near freezing, around 0∘C to 4∘C. Outside of the warm summer window, the water is too cold for general swimming, though the lake is a popular location for traditional winter swimming groups.