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 13.7°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 13 | 15.2°C | 17.0°C | |
| SEP 14 | 14.5°C | 17.0°C | |
| SEP 15 | 14.8°C | 17.0°C | |
| SEP 16 | 14.6°C | 17.0°C | |
| SEP 17 | 14.7°C | 17.0°C | |
| SEP 18 | 14.2°C | 17.0°C | |
| SEP 19 | 14.3°C | 17.0°C | |
| SEP 20 | 13.8°C | 17.0°C | |
| SEP 21 | 17.0°C | 13.9°C | |
| SEP 22 | 17.0°C | 14.0°C | |
| SEP 23 | 17.0°C | 14.2°C | |
| SEP 24 | 17.0°C | 14.4°C | |
| SEP 25 | 17.0°C | 14.5°C | |
| SEP 26 | 17.0°C | 14.7°C | |
| SEP 27 | 17.0°C | 14.9°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 | 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
September 21
September 22
September 23
September 24
September 25
September 26
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.