Klarälven River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Klarälven River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Klarälven River today is 11.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit 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 |
|---|---|---|---|
| SEP 14 | 12.3°C | 14.0°C | |
| SEP 15 | 12.6°C | 14.0°C | |
| SEP 16 | 12.1°C | 14.0°C | |
| SEP 17 | 11.9°C | 14.0°C | |
| SEP 18 | 11.8°C | 14.0°C | |
| SEP 19 | 11.8°C | 14.0°C | |
| SEP 20 | 11.8°C | 14.0°C | |
| SEP 22 | 14.0°C | 11.6°C | |
| SEP 23 | 14.0°C | 11.8°C | |
| SEP 24 | 14.0°C | 11.9°C | |
| SEP 25 | 14.0°C | 12.0°C | |
| SEP 26 | 14.0°C | 12.1°C | |
| SEP 27 | 14.0°C | 12.3°C | |
| SEP 28 | 14.0°C | 12.4°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 | 1°C | 4°C |
| February | 0°C | 1°C | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 0°C | 4°C | 8°C |
| May | 5°C | 9°C | 14°C |
| June | 10°C | 15°C | 19°C |
| July | 11°C | 16°C | 21°C |
| August | 12°C | 17°C | 21°C |
| September | 9°C | 14°C | 18°C |
| October | 4°C | 8°C | 10°C |
| November | 0°C | 4°C | 7°C |
| December | 0°C | 2°C | 5°C |
Klarälven River: Water Temperature by Location
Klarälven River: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Source Rogen and Femund
Mouth Vänern
• location Karlstad
• coordinates 59°23′19″N 13°29′54″E
• elevation 44 m (144 ft)
Length 460 km (290 mi)
Klarälven (in Swedish: Klarälven) winds through Värmland County and shows pronounced seasonal variation in water temperature. During spring, especially with snowmelt, surface temperatures are typically very cold, often around 1–8 °C (34–46 °F) and may feel colder due to fast, turbid flows. In summer the river warms, with many sheltered, shallow stretches reaching roughly 12–22 °C (54–72 °F) at peak months of July and August; deeper or faster sections remain cooler. In autumn temperatures fall back to about 5–12 °C (41–54 °F), and in winter much of the river can be at or near freezing, around 0–2 °C (32–36 °F), with ice cover on calmer reaches.
Swimming in Klarälven is possible and commonly practiced in calm, designated bathing spots or shallow backwaters where currents are weak and access is safe. However, many stretches have strong currents, variable depth, submerged obstacles and occasional boat traffic, and some areas are affected by hydroelectric installations, so swimming is not advisable everywhere. Local signage, informal bathing areas and municipal beaches are the safest choices; swimmers should be aware of cold-water shock in spring and autumn, the lack of lifeguards in many places, and take normal precautions to reduce hypothermia and current-related risks.