Sværsvann Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Sværsvann Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Sværsvann Lake today is 8.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing can be used. 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 4 | 9.9°C | 11.0°C | |
| OCT 5 | 10.1°C | 11.0°C | |
| OCT 6 | 9.5°C | 11.0°C | |
| OCT 7 | 9.3°C | 11.0°C | |
| OCT 8 | 9.6°C | 11.0°C | |
| OCT 9 | 9.8°C | 11.0°C | |
| OCT 10 | 9.0°C | 11.0°C | |
| OCT 11 | 8.5°C | 11.0°C | |
| OCT 12 | 11.0°C | 8.6°C | |
| OCT 13 | 11.0°C | 8.8°C | |
| OCT 14 | 11.0°C | 8.9°C | |
| OCT 15 | 11.0°C | 9.0°C | |
| OCT 16 | 11.0°C | 9.1°C | |
| OCT 17 | 11.0°C | 9.3°C | |
| OCT 18 | 11.0°C | 9.4°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 | 3°C | 6°C |
| February | 0°C | 3°C | 6°C |
| March | 0°C | 4°C | 7°C |
| April | 2°C | 7°C | 11°C |
| May | 7°C | 12°C | 18°C |
| June | 10°C | 17°C | 24°C |
| July | 16°C | 22°C | 27°C |
| August | 16°C | 22°C | 27°C |
| September | 12°C | 18°C | 23°C |
| October | 7°C | 11°C | 14°C |
| November | 3°C | 7°C | 10°C |
| December | 0°C | 4°C | 7°C |
Sværsvann Lake: Water Temperature by Location
Sværsvann Lake: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Sværsvann is a small lake in Oslo known locally as a recreational spot, and its water temperature follows the typical seasonal pattern for southeastern Norway. In early spring (April–May) surface temperatures are often low, roughly 2–10 °C (36–50 °F), rising through late spring and early summer to about 10–18 °C (50–64 °F) in June. The warmest months, July and August, commonly see water between 16–22 °C (61–72 °F), occasionally a few degrees higher during heat waves. In autumn (September–October) temperatures fall again to roughly 8–14 °C (46–57 °F), and in winter the lake usually approaches freezing; surface temperatures are around 0 °C (32 °F) when ice forms.
Swimming at Sværsvann is generally allowed and practiced by locals during the summer, since there are no formal bans on bathing in most Norwegian lakes. Popularity stems from easy access and suitable summer temperatures for bathing, but there are no staffed lifeguards, and conditions can vary: water depth, underwater terrain, and occasional algal growth can affect safety and comfort. In winter, swimming is not typical because of ice cover and hypothermia risk, though some people do ice bathing with proper precautions. As always, swimmers should judge conditions, wear appropriate gear, and avoid taking unnecessary risks.