Sarpsborg — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Sarpsborg, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Sarpsborg today is 4.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters. 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 |
|---|---|---|---|
| APR 11 | 3.8°C | 6.0°C | |
| APR 12 | 3.9°C | 6.0°C | |
| APR 13 | 3.7°C | 6.0°C | |
| APR 14 | 3.8°C | 6.0°C | |
| APR 15 | 3.8°C | 6.0°C | |
| APR 16 | 4.0°C | 6.0°C | |
| APR 17 | 4.2°C | 6.0°C | |
| APR 18 | 4.3°C | 6.0°C | |
| APR 19 | 6.0°C | 4.4°C | |
| APR 20 | 6.0°C | 4.5°C | |
| APR 21 | 6.0°C | 4.6°C | |
| APR 22 | 6.0°C | 4.6°C | |
| APR 23 | 6.0°C | 4.7°C | |
| APR 24 | 6.0°C | 4.8°C | |
| APR 25 | 6.0°C | 4.9°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 | 3°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 |
Sarpsborg: Weather Forecast
April 19
April 20
April 21
April 22
Location & Local Information
Sarpsborg (in Norwegian - Sarpsborg) in Østfold Country is surrounded by rivers and lakes that reflect the region’s temperate coastal climate. Typical surface water temperatures in local lakes vary widely by season: in winter lakes often hover around 0 to 1 °C (32 to 34 °F) and can freeze over; spring temperatures generally rise from about 4 to 12 °C (39 to 54 °F) as ice melts; summer brings the warmest conditions, commonly 18 to 23 °C (64 to 73 °F) and occasionally reaching 24–25 °C (75–77 °F) during heat waves; autumn sees cooling to roughly 8 to 14 °C (46 to 57 °F). These ranges depend on weather, depth, and local currents, so day-to-day values can differ from the averages.
Swimming in lakes around Sarpsborg is generally allowed, supported by Norway’s tradition of public access and by municipal bathing areas that are maintained for recreation. Local authorities post guidance about water quality, algae blooms or bacteria that can temporarily make swimming inadvisable, and some popular beaches have seasonal lifeguard services while many spots do not. Swimmers should check current water quality reports, heed safety signage, and be mindful of temperature-related risks such as cold-water shock in early summer or after sudden weather changes.