Rottnen Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Rottnen Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Rottnen Lake today is 9.5°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 | 11.2°C | 11.0°C | |
| OCT 5 | 10.6°C | 11.0°C | |
| OCT 6 | 10.4°C | 11.0°C | |
| OCT 7 | 10.4°C | 11.0°C | |
| OCT 8 | 10.6°C | 11.0°C | |
| OCT 9 | 10.1°C | 11.0°C | |
| OCT 10 | 10.0°C | 11.0°C | |
| OCT 11 | 9.5°C | 11.0°C | |
| OCT 12 | 11.0°C | 9.6°C | |
| OCT 13 | 11.0°C | 9.7°C | |
| OCT 14 | 11.0°C | 9.7°C | |
| OCT 15 | 11.0°C | 9.8°C | |
| OCT 16 | 11.0°C | 9.9°C | |
| OCT 17 | 11.0°C | 10.0°C | |
| OCT 18 | 11.0°C | 10.0°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 | 1°C | 5°C | 9°C |
| April | 5°C | 9°C | 12°C |
| May | 8°C | 13°C | 19°C |
| June | 15°C | 22°C | 28°C |
| July | 16°C | 22°C | 27°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 7°C | 11°C | 14°C |
| November | 4°C | 8°C | 11°C |
| December | 1°C | 5°C | 8°C |
Rottnen Lake: Water Temperature by Location
Rottnen Lake: Weather Forecast
October 12
October 13
October 14
October 15
Location & Local Information
Lake Rottnen (Rottnen in Swedish) in Kronoberg County typically follows the seasonal temperature patterns of southern Swedish lakes. In spring the surface water usually rises from about 4–12 °C (39–54 °F) as ice melts and air temperatures warm. During summer the lake commonly reaches 15–22 °C (59–72 °F), with sheltered bays occasionally warming to about 24 °C (75 °F) in very warm spells. In autumn surface temperatures fall again to roughly 8–15 °C (46–59 °F) before the lake cools toward freezing, and in winter the water near and under ice is close to 0–4 °C (32–39 °F) when ice cover is present.
Swimming in and around Rottnen is generally permitted and is a popular activity in summer because of the accessible shoreline and relatively mild surface temperatures. Sweden’s public right of access (allemansrätten) allows people to enter the countryside, but local restrictions can apply near private property, water supply facilities or sensitive nature reserves, so checking local signs is advisable. Water quality can vary and occasional algal blooms or stagnant conditions may make swimming unadvisable; cold water and sudden temperature changes also pose risks, so appropriate caution, gradual immersion and attention to safety are recommended.