Lomnessjøen — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lomnessjøen, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lomnessjøen today is 4.6°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 4 | 5.8°C | 8.0°C | |
| OCT 5 | 5.6°C | 8.0°C | |
| OCT 6 | 5.3°C | 8.0°C | |
| OCT 7 | 5.3°C | 8.0°C | |
| OCT 8 | 5.3°C | 8.0°C | |
| OCT 9 | 5.9°C | 8.0°C | |
| OCT 10 | 5.3°C | 8.0°C | |
| OCT 11 | 4.6°C | 8.0°C | |
| OCT 12 | 8.0°C | 4.8°C | |
| OCT 13 | 8.0°C | 4.9°C | |
| OCT 14 | 8.0°C | 5.1°C | |
| OCT 15 | 8.0°C | 5.3°C | |
| OCT 16 | 8.0°C | 5.5°C | |
| OCT 17 | 8.0°C | 5.6°C | |
| OCT 18 | 8.0°C | 5.8°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 | 0°C | 4°C |
| March | 0°C | 0°C | 4°C |
| April | 0°C | 3°C | 6°C |
| May | 4°C | 9°C | 14°C |
| June | 8°C | 14°C | 20°C |
| July | 13°C | 19°C | 24°C |
| August | 13°C | 19°C | 24°C |
| September | 10°C | 15°C | 21°C |
| October | 4°C | 8°C | 11°C |
| November | 0°C | 4°C | 7°C |
| December | 0°C | 2°C | 5°C |
Lomnessjøen: Water Temperature by Location
Lomnessjøen: Weather Forecast
October 12
October 13
October 14
October 15
Location & Local Information
Lomnessjøen in Innlandet County typically has cool water temperatures that vary with season, weather and the lake’s depth and elevation. In spring (April–May) the surface often ranges from just above freezing up to about 4–8 °C (39–46 °F) as snowmelt cools inflows. In summer (June–August) temperatures commonly rise to roughly 12–18 °C (54–64 °F), though shallow bays can warm a few degrees higher on sunny days. Autumn sees a steady decline, often 6–12 °C (43–54 °F) in September–October before approaching freezing in winter when ice can form and surface temperatures settle around 0–2 °C (32–36 °F) where unfrozen water remains.
Swimming at Lomnessjøen is generally possible and frequently practiced in summer, since there are no broad prohibitions on bathing in most Norwegian lakes and public access is protected by the “freedom to roam.” Local conditions, private shoreline rights, and seasonal ice cover can restrict access, so check for signage and respect landowners. Because the water is relatively cool even in summer, swimmers should take standard precautions: limit exposure time, use a wetsuit if planning extended swims, supervise children, and be aware of sudden cold-water shock and changing weather.