Sommen Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Sommen Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Sommen Lake today is 14°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 |
|---|---|---|---|
| SEP 14 | 15.2°C | 17.0°C | |
| SEP 15 | 15.1°C | 17.0°C | |
| SEP 16 | 15.0°C | 17.0°C | |
| SEP 17 | 14.7°C | 17.0°C | |
| SEP 18 | 14.5°C | 17.0°C | |
| SEP 19 | 14.4°C | 17.0°C | |
| SEP 20 | 14.3°C | 17.0°C | |
| SEP 22 | 17.0°C | 14.2°C | |
| SEP 23 | 17.0°C | 14.3°C | |
| SEP 24 | 17.0°C | 14.5°C | |
| SEP 25 | 17.0°C | 14.6°C | |
| SEP 26 | 17.0°C | 14.8°C | |
| SEP 27 | 17.0°C | 14.9°C | |
| SEP 28 | 17.0°C | 15.1°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 | 3°C | 6°C |
| February | 0°C | 3°C | 6°C |
| March | 0°C | 4°C | 7°C |
| April | 4°C | 8°C | 11°C |
| May | 8°C | 13°C | 19°C |
| June | 13°C | 19°C | 24°C |
| July | 16°C | 21°C | 26°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 6°C | 10°C | 13°C |
| November | 3°C | 7°C | 10°C |
| December | 0°C | 4°C | 7°C |
Sommen Lake: Water Temperature by Location
Sommen Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Lake Sommen (Swedish: Sommen) is a clear, relatively cool lake in Östergötland County. Surface temperatures vary strongly by season: in winter the lake is at or very near freezing around 0 °C (32 °F) and commonly ice-covered, spring surface temperatures typically rise from about 2–10 °C (36–50 °F), and by early summer surfaces often reach 12–18 °C (54–64 °F). Peak midsummer temperatures can be around 15–22 °C (59–72 °F) on warm years, while autumn sees a steady decline to roughly 10–4 °C (50–39 °F) before ice forms again. Because Sommen is fairly deep, deeper layers stay much colder year-round and stratification can mean a sharp temperature drop a few metres below the surface.
Swimming at Sommen is generally allowed and commonly practiced during the warmer months. Water quality is typically good and public access to shoreline areas is supported by Swedish access traditions, and there are several informal beaches, boat-ramps and docks used for bathing. However, conditions vary with weather and location: cold surface temperatures early and late in the year limit comfortable swimming, and ice cover makes ordinary bathing unsafe in winter except for organised ice-bathing where permitted. Visitors should choose sheltered areas, be mindful of sudden temperature changes and follow local guidance for safe swimming.