Karasjohka River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Karasjohka River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Karasjohka River today is 3.7°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 |
|---|---|---|---|
| SEP 22 | 6.1°C | 9.0°C | |
| SEP 23 | 5.8°C | 9.0°C | |
| SEP 24 | 5.0°C | 9.0°C | |
| SEP 25 | 5.2°C | 9.0°C | |
| SEP 26 | 5.2°C | 9.0°C | |
| SEP 27 | 4.6°C | 9.0°C | |
| SEP 28 | 4.6°C | 9.0°C | |
| SEP 29 | 4.3°C | 9.0°C | |
| SEP 30 | 9.0°C | 3.7°C | |
| OCT 1 | 3.0°C | 3.6°C | |
| OCT 2 | 3.0°C | 3.6°C | |
| OCT 3 | 3.0°C | 3.6°C | |
| OCT 4 | 3.0°C | 3.5°C | |
| OCT 5 | 3.0°C | 3.5°C | |
| OCT 6 | 3.0°C | 3.5°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 | 1°C | 3°C |
| February | 0°C | 1°C | 3°C |
| March | 0°C | 1°C | 3°C |
| April | 0°C | 1°C | 4°C |
| May | 0°C | 4°C | 9°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 | 13°C |
| October | 0°C | 3°C | 6°C |
| November | 0°C | 2°C | 5°C |
| December | 0°C | 2°C | 4°C |
Karasjohka River: Water Temperature by Location
Karasjohka River: Weather Forecast
September 30
October 1
October 2
October 3
October 4
Location & Local Information
Source Nuorttit Rávdojávri lake
• location Kautokeino, Finnmark
• coordinates 68°43′56″N 24°15′18″E
• elevation 519 metres (1,703 ft)
Mouth Tana River
• location Karasjok, Finnmark
• coordinates 69°26′03″N 25°48′13″E
• elevation 125 metres (410 ft)
Length 161 km (100 mi)
Karasjohka is a northern Norwegian river in Finnmark County known for its clear, cold waters fed by snowmelt and upland streams. Seasonal surface temperatures are generally low: in late spring and early summer the river often measures around 0–8 °C (32–46 °F) as snowmelt keeps it chilly, while the warmest midsummer days can raise surface temperatures into roughly 8–14 °C (46–57 °F) in sheltered, slow-flowing sections. By autumn temperatures typically fall back to about 2–8 °C (36–46 °F), and in winter the river approaches freezing, around 0–2 °C (32–36 °F), with ice cover or very cold, fast-flowing open channels in many places.
Swimming in Karasjohka is physically possible in summer where access and calmer pools exist, but it is not like recreational bathing in milder climates. The low water temperatures, strong currents in many stretches, and the remoteness of large parts of the river increase the risk of cold shock and hypothermia. Local regulations normally do not ban swimming, but safety considerations mean that people should use wetsuits, choose sheltered spots, avoid strong currents, and seek local advice before entering the water. For most visitors, brief dips rather than prolonged swimming are the realistic option.