Marmen — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Marmen, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Marmen today is 20.2°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 | 18.5°C | 20.0°C | |
| JUL 15 | 20.9°C | 20.0°C | |
| JUL 16 | 21.1°C | 20.0°C | |
| JUL 17 | 21.1°C | 20.0°C | |
| JUL 18 | 21.2°C | 20.0°C | |
| JUL 19 | 20.5°C | 20.0°C | |
| JUL 20 | 20.4°C | 20.0°C | |
| JUL 21 | 20.2°C | 20.0°C | |
| JUL 22 | 20.0°C | 20.2°C | |
| JUL 23 | 20.0°C | 20.2°C | |
| JUL 24 | 20.0°C | 20.2°C | |
| JUL 25 | 20.0°C | 20.2°C | |
| JUL 26 | 20.0°C | 20.2°C | |
| JUL 27 | 20.0°C | 20.1°C | |
| JUL 28 | 20.0°C | 20.1°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 | 2°C | 5°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 4°C | 8°C |
| May | 5°C | 10°C | 15°C |
| June | 10°C | 15°C | 21°C |
| July | 14°C | 20°C | 25°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 5°C | 9°C | 12°C |
| November | 1°C | 5°C | 8°C |
| December | 0°C | 3°C | 6°C |
Marmen: Water Temperature by Location
Marmen: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
Lake Marmen in Gävleborg County, Sweden typically follows the seasonal temperature patterns of inland Scandinavian lakes. In spring the water commonly ranges from about 2–12 °C (36–54 °F) as ice thaws and thermal stratification begins. During the main bathing season in summer, surface temperatures often reach roughly 15–22 °C (59–72 °F), with the warmest weeks in July and early August. In autumn the lake cools again, usually falling to around 5–15 °C (41–59 °F) as air temperatures decline, and in winter the surface is commonly at or near freezing (around 0 °C / 32 °F) and may be ice-covered for extended periods.
Swimming in Marmen is generally allowed, reflecting Sweden’s public right of access and the common use of lakes for bathing, fishing and recreation. Whether swimming is advisable depends on current water quality, weather and ice conditions; local advisories or private property restrictions can apply in specific spots. Casual summer bathing is common when surface temperatures reach the mid-teens to low twenties Celsius, while winter swimming or ice bathing is only for experienced, well-equipped individuals because of hypothermia and safety risks. Visitors are encouraged to check local information about designated bathing sites, water quality and safety measures before entering the water.