Trollhättan — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Trollhättan, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Trollhättan today is 15.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 |
|---|---|---|---|
| JUN 3 | 15.4°C | 18.0°C | |
| JUN 4 | 15.4°C | 18.0°C | |
| JUN 5 | 15.7°C | 18.0°C | |
| JUN 6 | 15.7°C | 18.0°C | |
| JUN 7 | 15.7°C | 18.0°C | |
| JUN 8 | 15.7°C | 18.0°C | |
| JUN 10 | 15.3°C | 18.0°C | |
| JUN 11 | 18.0°C | 15.4°C | |
| JUN 12 | 18.0°C | 15.6°C | |
| JUN 13 | 18.0°C | 15.7°C | |
| JUN 14 | 18.0°C | 15.8°C | |
| JUN 15 | 18.0°C | 16.0°C | |
| JUN 16 | 18.0°C | 16.1°C | |
| JUN 17 | 18.0°C | 16.2°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 | 0°C | 4°C | 7°C |
| April | 4°C | 8°C | 11°C |
| May | 8°C | 13°C | 18°C |
| June | 13°C | 18°C | 23°C |
| July | 15°C | 20°C | 25°C |
| August | 14°C | 19°C | 24°C |
| September | 11°C | 16°C | 21°C |
| October | 6°C | 10°C | 13°C |
| November | 3°C | 7°C | 10°C |
| December | 0°C | 4°C | 7°C |
Trollhättan: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Trollhättan sits on the Göta älv and close to Sweden’s inland lakes, so most local bathing takes place in rivers and freshwater lakes rather than the sea. Typical summer water temperatures in calm lakes near Trollhättan range from about 17–22 °C (63–72 °F), peaking in July–August. The Göta älv itself is often a few degrees cooler and more variable, commonly 15–20 °C (59–68 °F) in summer but subject to rapid changes because of flow, depth and upstream releases. In spring (April–June) temperatures are usually 4–12 °C (39–54 °F), in autumn (September–October) 10–16 °C (50–61 °F), and in winter inland waters approach freezing, roughly 0–4 °C (32–39 °F), with ice cover possible on sheltered lakes.
Swimming is generally allowed at marked beaches and public bathing spots in and around Trollhättan, where water quality is monitored and facilities are provided. However, swimming is discouraged or prohibited in shipping channels, near locks and industrial installations, and in fast-moving stretches of the Göta älv because of strong currents, sudden depth changes and boat traffic. Warm summers can bring algal blooms in shallow bays, so local advisories should be followed for safety and hygiene.