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 13.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 13 | 14.3°C | 15.0°C | |
| SEP 14 | 14.2°C | 15.0°C | |
| SEP 15 | 13.8°C | 15.0°C | |
| SEP 16 | 13.8°C | 15.0°C | |
| SEP 17 | 13.9°C | 15.0°C | |
| SEP 18 | 13.8°C | 15.0°C | |
| SEP 19 | 13.4°C | 15.0°C | |
| SEP 20 | 13.3°C | 15.0°C | |
| SEP 21 | 15.0°C | 13.5°C | |
| SEP 22 | 15.0°C | 13.6°C | |
| SEP 23 | 15.0°C | 13.6°C | |
| SEP 24 | 15.0°C | 13.7°C | |
| SEP 25 | 15.0°C | 13.8°C | |
| SEP 26 | 15.0°C | 13.9°C | |
| SEP 27 | 15.0°C | 14.0°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
September 21
September 22
September 23
September 24
September 25
September 26
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.