Fredrikstad — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Fredrikstad, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Fredrikstad today is 17.9°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 |
|---|---|---|---|
| AUG 3 | 18.3°C | 18.0°C | |
| AUG 4 | 18.3°C | 18.0°C | |
| AUG 5 | 18.3°C | 18.0°C | |
| AUG 6 | 17.9°C | 18.0°C | |
| AUG 7 | 17.9°C | 18.0°C | |
| AUG 8 | 17.9°C | 18.0°C | |
| AUG 9 | 17.9°C | 18.0°C | |
| AUG 10 | 17.9°C | 18.0°C | |
| AUG 11 | 18.0°C | 17.9°C | |
| AUG 12 | 18.0°C | 17.9°C | |
| AUG 13 | 18.0°C | 17.9°C | |
| AUG 14 | 18.0°C | 17.9°C | |
| AUG 15 | 18.0°C | 17.9°C | |
| AUG 16 | 18.0°C | 17.9°C | |
| AUG 17 | 18.0°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 | 2°C | 5°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 2°C | 6°C | 9°C |
| May | 6°C | 10°C | 15°C |
| June | 11°C | 16°C | 20°C |
| July | 14°C | 18°C | 23°C |
| August | 14°C | 18°C | 23°C |
| September | 10°C | 15°C | 19°C |
| October | 6°C | 9°C | 12°C |
| November | 2°C | 6°C | 9°C |
| December | 0°C | 3°C | 6°C |
Fredrikstad: Weather Forecast
August 11
August 12
August 13
August 14
Location & Local Information
Fredrikstad, in Østfold County, lies close to both the Oslofjord and several inland lakes, and the water temperatures reflect the region’s temperate coastal climate. Typical seasonal ranges for lakes near Fredrikstad are roughly 4–12 °C (39–54 °F) in spring, warming to about 10–18 °C (50–64 °F) in early summer. Peak summer temperatures in sheltered lakes often reach 16–22 °C (61–72 °F) and can occasionally climb to around 24 °C (75 °F) during hot spells. In autumn the surface cools back to roughly 5–12 °C (41–54 °F), while winter temperatures commonly sit close to freezing, around 0–4 °C (32–39 °F), and many smaller lakes freeze over.
Swimming in and around Fredrikstad’s lakes is generally permitted and popular where public access and designated bathing sites exist. The combination of public access rights and municipal bathing facilities means people commonly swim in summer, but conditions vary: water quality can decline after heavy rain, currents are stronger in river mouths and near the Glomma, and most natural spots lack lifeguards. Winter swimming is practiced by some as cold-water bathing, but it requires experience and safety measures. Local rules or private restrictions may apply at particular sites, so swimmers should check signage and exercise appropriate caution.