Ørsjøen — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Ørsjøen, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Ørsjøen today is 13.2°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 | 14.2°C | 18.0°C | |
| SEP 14 | 14.0°C | 18.0°C | |
| SEP 15 | 14.3°C | 18.0°C | |
| SEP 16 | 14.2°C | 18.0°C | |
| SEP 17 | 13.9°C | 18.0°C | |
| SEP 18 | 13.7°C | 18.0°C | |
| SEP 19 | 13.8°C | 18.0°C | |
| SEP 20 | 13.4°C | 18.0°C | |
| SEP 21 | 18.0°C | 13.4°C | |
| SEP 22 | 18.0°C | 13.7°C | |
| SEP 23 | 18.0°C | 13.9°C | |
| SEP 24 | 18.0°C | 14.2°C | |
| SEP 25 | 18.0°C | 14.4°C | |
| SEP 26 | 18.0°C | 14.6°C | |
| SEP 27 | 18.0°C | 14.9°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 | 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 | 7°C | 12°C | 18°C |
| June | 13°C | 19°C | 24°C |
| July | 17°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 |
Ørsjøen: Water Temperature by Location
Ørsjøen: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Ørsjøen, a lake in Østfold County (Ørsjøen in Norwegian), typically follows the seasonal temperature patterns of small inland Norwegian lakes. In spring the surface water is cold, commonly around 2–8 °C (36–46 °F) as snowmelt and cool air continue to influence the basin. By early summer temperatures often rise to roughly 12–17 °C (54–63 °F), and during the warmest weeks of July and August sheltered, shallow bays can reach 16–22 °C (61–72 °F), occasionally a bit higher on prolonged heat spells. In autumn the lake cools back toward 4–9 °C (39–48 °F) and in winter the surface generally approaches freezing, around 0–1 °C (32–34 °F), with ice cover likely depending on the winter severity.
Swimming in Ørsjøen is generally possible and commonly practised in the summer months when surface temperatures are most comfortable. There are typically no formal bans on recreational swimming, but there may be limited official bathing facilities or lifeguard services, so swimmers should be cautious: check local water quality advisories, look for signage, and be aware of cold-water shock even on summer evenings. Ice swimming or winter bathing requires specific safety measures and local knowledge about ice thickness. In short, seasonal conditions permit pleasant swimming in mid-summer, while spring, autumn and winter present greater risks and require extra precautions.