Nattvatnet — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Nattvatnet, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Nattvatnet today is 7.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold. 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 14 | 9.7°C | 9.0°C | |
| SEP 15 | 9.7°C | 9.0°C | |
| SEP 16 | 9.5°C | 9.0°C | |
| SEP 17 | 8.7°C | 9.0°C | |
| SEP 18 | 8.4°C | 9.0°C | |
| SEP 19 | 8.2°C | 9.0°C | |
| SEP 20 | 8.0°C | 9.0°C | |
| SEP 22 | 9.0°C | 7.8°C | |
| SEP 23 | 9.0°C | 7.8°C | |
| SEP 24 | 9.0°C | 7.9°C | |
| SEP 25 | 9.0°C | 8.0°C | |
| SEP 26 | 9.0°C | 8.0°C | |
| SEP 27 | 9.0°C | 8.1°C | |
| SEP 28 | 9.0°C | 8.2°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 | 2°C | 3°C |
| February | 0°C | 2°C | 3°C |
| March | 0°C | 2°C | 3°C |
| April | 0°C | 0°C | 4°C |
| May | 0°C | 3°C | 8°C |
| June | 0°C | 7°C | 14°C |
| July | 4°C | 10°C | 17°C |
| August | 6°C | 11°C | 17°C |
| September | 4°C | 9°C | 14°C |
| October | 0°C | 3°C | 6°C |
| November | 0°C | 2°C | 5°C |
| December | 0°C | 2°C | 4°C |
Nattvatnet: Water Temperature by Location
Nattvatnet: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Nattvatnet in Finnmark County is a typical northern Norwegian lake with generally cold water most of the year. Surface temperatures depend on season and depth: during peak summer months shallow areas can rise to roughly 12–16 °C (54–61 °F), while typical summer surface temperatures more often fall between about 8–14 °C (46–57 °F). In spring and early summer, after ice melt, the water commonly sits around 0–8 °C (32–46 °F). Autumn sees a steady cooling toward 4–10 °C (39–50 °F) before the lake refreezes; under ice in winter the water temperature is close to 0–4 °C (32–39 °F). Deeper parts remain colder year-round, so temperatures vary locally.
Swimming in and around Nattvatnet is generally permitted because public access to nature is protected in Norway and there are usually no formal bans on bathing in lakes, but conditions make it a cold-water experience. Many people still swim in summer, often briefly or using wetsuits; winter swimming is practiced by some but carries significant risks unless supported by safety measures. Visitors should be aware of cold shock and hypothermia risks, lack of lifeguards, variable bottom conditions and possible ice hazards in shoulder seasons. Local signs or landowner notices should always be observed.