Färnebofjärden Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Färnebofjärden Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Färnebofjärden Lake today is 5.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold. 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 |
|---|---|---|---|
| APR 11 | 4.0°C | 5.0°C | |
| APR 12 | 4.0°C | 5.0°C | |
| APR 13 | 4.0°C | 5.0°C | |
| APR 14 | 4.4°C | 5.0°C | |
| APR 15 | 4.4°C | 5.0°C | |
| APR 16 | 4.4°C | 5.0°C | |
| APR 17 | 4.4°C | 5.0°C | |
| APR 18 | 5.1°C | 5.0°C | |
| APR 19 | 5.0°C | 5.1°C | |
| APR 20 | 5.0°C | 5.1°C | |
| APR 21 | 5.0°C | 5.1°C | |
| APR 22 | 5.0°C | 5.1°C | |
| APR 23 | 5.0°C | 5.1°C | |
| APR 24 | 5.0°C | 5.1°C | |
| APR 25 | 5.0°C | 5.1°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 | 6°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 |
Färnebofjärden Lake: Water Temperature by Location
Färnebofjärden Lake: Weather Forecast
April 19
April 20
April 21
April 22
Location & Local Information
Färnebofjärden, a series of broad river bays along the Dalälven in Uppsala County (Swedish: Färnebofjärden), shows pronounced seasonal variation in surface water temperature. In spring the water is cold, typically around 1–8 °C (34–46 °F) as snowmelt and river flow dominate. Summer brings the warmest conditions: shallow and sheltered bays often reach 15–22 °C (59–72 °F) in July and August, and on warm, calm days some sheltered spots can climb to about 23–24 °C (73–75 °F). In early autumn temperatures generally fall to roughly 5–12 °C (41–54 °F), and in winter the water is near freezing, about 0–2 °C (32–36 °F), with ice cover common in colder years.
Swimming in Färnebofjärden is generally permitted under Sweden’s public right of access, and many people bathe in the bays and at informal beaches, but conditions vary and caution is advised. Because the area is part river system there can be local currents, submerged vegetation, sudden depth changes and boat traffic; parts of the national park are also protected, which can limit certain activities. Safety considerations — cold-water shock in spring and autumn, variable bottoms and limited lifeguarding — are the main reasons visitors should choose sheltered spots, check local guidance and avoid risky stretches when deciding to swim.