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 18.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 | 19.1°C | 22.0°C | |
| AUG 4 | 19.1°C | 22.0°C | |
| AUG 5 | 19.1°C | 22.0°C | |
| AUG 6 | 18.9°C | 22.0°C | |
| AUG 7 | 18.9°C | 22.0°C | |
| AUG 8 | 18.9°C | 22.0°C | |
| AUG 9 | 18.7°C | 22.0°C | |
| AUG 10 | 18.8°C | 22.0°C | |
| AUG 11 | 22.0°C | 19.0°C | |
| AUG 12 | 22.0°C | 19.1°C | |
| AUG 13 | 22.0°C | 19.3°C | |
| AUG 14 | 22.0°C | 19.4°C | |
| AUG 15 | 22.0°C | 19.6°C | |
| AUG 16 | 22.0°C | 19.8°C | |
| AUG 17 | 22.0°C | 19.9°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 | 17°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
August 11
August 12
August 13
August 14
August 15
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.