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 17.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 23 | 15.1°C | 18.0°C | |
| JUN 24 | 15.1°C | 18.0°C | |
| JUN 25 | 15.1°C | 18.0°C | |
| JUN 26 | 16.1°C | 18.0°C | |
| JUN 27 | 16.1°C | 18.0°C | |
| JUN 28 | 16.1°C | 18.0°C | |
| JUN 29 | 16.1°C | 18.0°C | |
| JUN 30 | 17.3°C | 18.0°C | |
| JUL 1 | 19.0°C | 17.4°C | |
| JUL 2 | 19.0°C | 17.5°C | |
| JUL 3 | 19.0°C | 17.6°C | |
| JUL 4 | 19.0°C | 17.6°C | |
| JUL 5 | 19.0°C | 17.7°C | |
| JUL 6 | 19.0°C | 17.8°C | |
| JUL 7 | 19.0°C | 17.9°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
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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.