Korssjøen — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Korssjøen, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Korssjøen today is 9.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing 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 |
|---|---|---|---|
| OCT 4 | 11.1°C | 11.0°C | |
| OCT 5 | 11.0°C | 11.0°C | |
| OCT 6 | 10.5°C | 11.0°C | |
| OCT 7 | 10.3°C | 11.0°C | |
| OCT 8 | 10.6°C | 11.0°C | |
| OCT 9 | 9.9°C | 11.0°C | |
| OCT 10 | 10.0°C | 11.0°C | |
| OCT 11 | 9.8°C | 11.0°C | |
| OCT 12 | 11.0°C | 9.9°C | |
| OCT 13 | 11.0°C | 9.9°C | |
| OCT 14 | 11.0°C | 10.0°C | |
| OCT 15 | 11.0°C | 10.0°C | |
| OCT 16 | 11.0°C | 10.1°C | |
| OCT 17 | 11.0°C | 10.2°C | |
| OCT 18 | 11.0°C | 10.2°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 | 2°C | 7°C | 11°C |
| May | 7°C | 12°C | 18°C |
| June | 11°C | 18°C | 24°C |
| July | 16°C | 22°C | 27°C |
| August | 16°C | 22°C | 27°C |
| September | 12°C | 18°C | 23°C |
| October | 7°C | 11°C | 14°C |
| November | 3°C | 7°C | 10°C |
| December | 0°C | 4°C | 7°C |
Korssjøen: Water Temperature by Location
Korssjøen: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Korssjøen in Vestfold County (Korssjøen) typically follows the seasonal patterns of small inland Norwegian lakes. In spring the surface temperature commonly rises from around 4–12 °C (39–54 °F) as ice melts and air temperatures climb. Peak summer temperatures are usually reached in July and August, often ranging from about 15–22 °C (59–72 °F) on warm years, making the water pleasantly swimmable for many people. In autumn the lake cools back to roughly 6–14 °C (43–57 °F), and in winter the surface may drop to around 0–4 °C (32–39 °F) with ice formation when conditions are cold enough.
Swimming at Korssjøen is generally allowed and commonly practiced in the warmer months because Norwegian public access rights permit shoreline use and the lake is a traditional recreational spot. There are no universal lifeguards, so swimmers should be cautious about sudden depth changes, low temperatures, boat traffic and occasional algae or local water-quality advisories; checking posted signs or local guidance is advisable. For summer swimming most people find the lake comfortable, while cooler-water swimmers may prefer wetsuits; winter or ice swimming is undertaken by experienced individuals with appropriate safety measures.