Byasjön — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Byasjön, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Byasjön today is 20.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| JUL 14 | 19.3°C | 21.0°C | |
| JUL 15 | 21.3°C | 21.0°C | |
| JUL 16 | 21.3°C | 21.0°C | |
| JUL 17 | 21.4°C | 21.0°C | |
| JUL 18 | 21.4°C | 21.0°C | |
| JUL 19 | 20.6°C | 21.0°C | |
| JUL 20 | 20.6°C | 21.0°C | |
| JUL 21 | 20.6°C | 21.0°C | |
| JUL 22 | 21.0°C | 20.6°C | |
| JUL 23 | 21.0°C | 20.6°C | |
| JUL 24 | 21.0°C | 20.7°C | |
| JUL 25 | 21.0°C | 20.7°C | |
| JUL 26 | 21.0°C | 20.7°C | |
| JUL 27 | 21.0°C | 20.7°C | |
| JUL 28 | 21.0°C | 20.7°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 | 2°C | 5°C |
| March | 0°C | 4°C | 7°C |
| April | 4°C | 8°C | 11°C |
| May | 9°C | 14°C | 20°C |
| June | 13°C | 19°C | 24°C |
| July | 16°C | 21°C | 26°C |
| August | 14°C | 20°C | 25°C |
| September | 10°C | 15°C | 21°C |
| October | 6°C | 10°C | 13°C |
| November | 3°C | 7°C | 10°C |
| December | 1°C | 5°C | 8°C |
Byasjön: Water Temperature by Location
Byasjön: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
Byasjön in Halland County is a modest inland lake that follows the typical seasonal temperature patterns of southwestern Swedish lakes. In spring (April–May) the surface temperature is commonly around 4–12 °C (39–54 °F) as the water warms after ice melt. Early summer sees temperatures rise to roughly 15–20 °C (59–68 °F), and the warmest weeks in July–August often reach 18–22 °C (64–72 °F), occasionally a little higher during heat spells. In autumn (September–October) temperatures decline to about 8–15 °C (46–59 °F), while winter values can fall near freezing, roughly 0–4 °C (32–39 °F), with occasional ice cover depending on the year.
Swimming in Byasjön is generally possible and commonly practiced during the warmer months because Swedish access rights and local custom allow bathing in most lakes, provided there are no explicit local restrictions. The most comfortable and safest period for casual swimming is mid-summer when surface temperatures are highest; spring and autumn swimming can be uncomfortably cold and carry a higher risk of cold shock. Winter swimming is only advisable for experienced ice-bathers with appropriate safety measures. Water quality can vary by season and location around the shore, so it is sensible to heed any local notices about algal blooms or contamination and to avoid swimming where signs indicate restrictions.