Långasjön — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Långasjön, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Långasjön today is 14.5°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 | 15.6°C | 17.0°C | |
| SEP 15 | 15.6°C | 17.0°C | |
| SEP 16 | 15.5°C | 17.0°C | |
| SEP 17 | 15.2°C | 17.0°C | |
| SEP 18 | 15.3°C | 17.0°C | |
| SEP 19 | 14.8°C | 17.0°C | |
| SEP 20 | 14.7°C | 17.0°C | |
| SEP 22 | 17.0°C | 14.6°C | |
| SEP 23 | 17.0°C | 14.8°C | |
| SEP 24 | 17.0°C | 14.9°C | |
| SEP 25 | 17.0°C | 15.0°C | |
| SEP 26 | 17.0°C | 15.1°C | |
| SEP 27 | 17.0°C | 15.3°C | |
| SEP 28 | 17.0°C | 15.4°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 | 2°C | 6°C | 9°C |
| April | 5°C | 9°C | 12°C |
| May | 8°C | 13°C | 19°C |
| June | 16°C | 22°C | 28°C |
| July | 17°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 |
Långasjön: Water Temperature by Location
Långasjön: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Långasjön in Blekinge experiences a clear seasonal variation in water temperature. During summer months the surface typically warms to about 16–22 °C (61–72 °F), and on warm spells can reach 24–25 °C (75–77 °F). In spring temperatures are cooler, often in the 4–12 °C range (39–54 °F) as the lake stratifies, while autumn sees a gradual decline to roughly 8–14 °C (46–57 °F). In winter the lake can approach freezing with surface readings near 0–4 °C (32–39 °F) and occasional ice cover in colder years. These numbers are approximate and vary with weather, depth and local inflow.
Swimming in Långasjön is generally allowed and commonly practised in warmer months because the lake has public access points and recreational shorelines. There is no general prohibition, but local rules or temporary advisories may restrict bathing for reasons such as water quality issues, blue-green algae, or maintenance. Swimmers should be mindful of colder temperatures outside summer, which increase the risk of cold-water shock and reduced endurance, and take normal safety precautions such as supervising children, using flotation when needed, and checking local notices about water quality before entering.