Lake Julsø — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Julsø, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Julsø today is 18.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| AUG 24 | 17.5°C | 20.0°C | |
| AUG 25 | 17.5°C | 20.0°C | |
| AUG 26 | 17.5°C | 20.0°C | |
| AUG 27 | 17.5°C | 20.0°C | |
| AUG 28 | 17.6°C | 20.0°C | |
| AUG 29 | 18.3°C | 20.0°C | |
| AUG 30 | 18.4°C | 20.0°C | |
| AUG 31 | 18.4°C | 20.0°C | |
| SEP 1 | 17.0°C | 18.3°C | |
| SEP 2 | 17.0°C | 18.3°C | |
| SEP 3 | 17.0°C | 18.2°C | |
| SEP 4 | 17.0°C | 18.1°C | |
| SEP 5 | 17.0°C | 18.1°C | |
| SEP 6 | 17.0°C | 18.0°C | |
| SEP 7 | 17.0°C | 17.9°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 | 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 | 4°C | 8°C | 11°C |
| December | 1°C | 5°C | 8°C |
Lake Julsø: Water Temperature by Location
Lake Julsø: Weather Forecast
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September 4
September 5
Location & Local Information
Julsø is a medium-sized freshwater lake in the Central Denmark Region, part of the Gudenå river system, and its surface temperature follows the typical Danish seasonal pattern. In winter the water is cold, often around 0–4 °C (32–39 °F) and may approach freezing in prolonged cold spells. Spring sees a steady rise, roughly 4–12 °C (39–54 °F) as warming progresses and stratification begins. In summer surface temperatures commonly range from about 16–22 °C (61–72 °F), with sheltered bays occasionally reaching into the mid-20s °C (mid-70s °F) during heatwaves. During autumn the lake cools back to roughly 8–14 °C (46–57 °F). These figures vary with depth, wind, sunlight and recent weather, so short-term readings can differ from seasonal norms.
Swimming in Julsø is generally possible and popular in warmer months because the shoreline is publicly accessible and there are informal bathing spots around the lake. Local authorities may designate and monitor specific bathing areas for safety and water quality, so swimmers are advised to use marked sites when available. Like many inland waters, Julsø can be intermittently affected by algae or cyanobacterial blooms, and there are no uniform lifeguard services, so checking current local advisories and exercising usual lake-swimming precautions is recommended.