Untrafjärden Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Untrafjärden Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Untrafjärden Lake today is 4.4°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 |
|---|---|---|---|
| OCT 23 | 5.0°C | 9.0°C | |
| OCT 24 | 5.6°C | 9.0°C | |
| OCT 25 | 5.4°C | 9.0°C | |
| OCT 26 | 5.2°C | 9.0°C | |
| OCT 27 | 5.0°C | 9.0°C | |
| OCT 28 | 4.8°C | 9.0°C | |
| OCT 29 | 4.8°C | 9.0°C | |
| OCT 30 | 4.6°C | 9.0°C | |
| OCT 31 | 9.0°C | 4.4°C | |
| NOV 1 | 5.0°C | 4.5°C | |
| NOV 2 | 5.0°C | 4.5°C | |
| NOV 3 | 5.0°C | 4.5°C | |
| NOV 4 | 5.0°C | 4.6°C | |
| NOV 5 | 5.0°C | 4.6°C | |
| NOV 6 | 5.0°C | 4.6°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 | 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 |
Untrafjärden Lake: Water Temperature by Location
Untrafjärden Lake: Weather Forecast
October 31
November 1
November 2
November 3
November 4
Location & Local Information
Untrafjärden is a lake in Uppsala County, Sweden, with seasonal surface temperatures that follow the typical patterns of temperate Scandinavian inland waters. During winter the surface commonly drops to around 0 °C (32 °F) and may remain at or below freezing when the lake is ice-covered. In spring, as ice melts and the water mixes, temperatures usually rise from roughly 2–10 °C (36–50 °F). Peak summer conditions in July and August often bring surface temperatures into the 18–22 °C range (64–72 °F) on warmer days, while early autumn sees a gradual cooling through approximately 10–15 °C (50–59 °F) before freezing resumes.
Swimming in Untrafjärden is generally allowed and common in the warmer months under Sweden’s public right of access and local practice, provided there are no posted restrictions. Recreational bathing is feasible when summer temperatures are in the high teens to low twenties Celsius, but swimmers should heed local water quality advisories for issues like blue‑green algae or runoff after heavy rains. In winter, ice conditions can allow ice skating or winter dips only where ice thickness is verified and safety measures are taken. As with any natural water, users are advised to exercise judgment about temperature shock, depth, currents, and available rescue help before entering the water.