Helgasjön — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Helgasjön, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Helgasjön today is 9.9°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 | 11.6°C | 11.0°C | |
| OCT 5 | 11.1°C | 11.0°C | |
| OCT 6 | 10.9°C | 11.0°C | |
| OCT 7 | 10.9°C | 11.0°C | |
| OCT 8 | 10.6°C | 11.0°C | |
| OCT 9 | 10.3°C | 11.0°C | |
| OCT 10 | 10.4°C | 11.0°C | |
| OCT 11 | 9.9°C | 11.0°C | |
| OCT 12 | 11.0°C | 10.0°C | |
| OCT 13 | 11.0°C | 10.0°C | |
| OCT 14 | 11.0°C | 10.1°C | |
| OCT 15 | 11.0°C | 10.1°C | |
| OCT 16 | 11.0°C | 10.2°C | |
| OCT 17 | 11.0°C | 10.2°C | |
| OCT 18 | 11.0°C | 10.3°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 | 4°C | 8°C | 12°C |
| May | 8°C | 13°C | 19°C |
| June | 14°C | 21°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 | 3°C | 8°C | 11°C |
| December | 1°C | 5°C | 8°C |
Helgasjön: Water Temperature by Location
Helgasjön: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Helgasjön (called Helgasjön in Swedish) is a medium-sized lake in Kronoberg County whose surface temperatures follow the typical seasonal pattern of southern Swedish lakes. In winter the water usually sits close to freezing, roughly 0–4 °C (32–39 °F) under ice or just below the surface. During spring the lake warms as ice melts and inflows cool the basin, commonly ranging from about 4–12 °C (39–54 °F). In summer surface temperatures most often reach approximately 16–24 °C (61–75 °F) in warm spells, with shallower bays warming more quickly. In autumn the water cools again to around 8–15 °C (46–59 °F) as air temperatures drop and mixing increases. Local weather, wind and depth cause considerable variation, so measured temperatures can differ from these averages year to year.
Swimming in Helgasjön is generally allowed and common where there are public access points and bathing areas, since the lake is used for recreation by residents and visitors. Local municipalities monitor bathing water quality during the swimming season and post guidance if algal blooms or pollution occur; that surveillance helps determine when bathing is advisable. Outside the summer months the water is cold and can be hazardous without proper precautions, and ice or shoreline conditions can restrict access in winter, though some people practice regulated winter swimming with safety measures in place.