Tromsø — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Tromsø (Norway). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Tromsø help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Tromsø in the Norwegian Sea today is 9°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
Water temperature in Tromsø has risen over the last week and month. Currently, the sea water at this location is slightly warmer than average for this day in previous years.
According to our forecast, Water temperature in Tromsø will be 8.4°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 2 | 7.0°C | 7.0°C | |
| JUN 3 | 7.0°C | 7.0°C | |
| JUN 4 | 7.4°C | 7.0°C | |
| JUN 5 | 7.5°C | 7.0°C | |
| JUN 6 | 7.9°C | 7.3°C | |
| JUN 7 | 8.1°C | 7.3°C | |
| JUN 8 | 8.4°C | 7.0°C | |
| JUN 9 | 8.7°C | 7.0°C | |
| JUN 10 | 8.9°C | 7.0°C | 8.9°C |
| JUN 11 | 7.3°C | 8.8°C | |
| JUN 12 | 7.3°C | 8.8°C | |
| JUN 13 | 7.8°C | 8.7°C | |
| JUN 14 | 7.8°C | 8.6°C | |
| JUN 15 | 7.8°C | 8.6°C | |
| JUN 16 | 7.8°C | 8.5°C | |
| JUN 17 | 8.0°C | 8.4°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.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Tromsø, located above the Arctic Circle in Troms County, has a coastal climate influenced by the North Atlantic Current, so seawater temperatures are milder than one might expect for its latitude. Typical seasonal sea surface temperatures range from about 0–3 °C in the coldest months of December to February, rising slowly in spring to roughly 1–6 °C by April and May. The warmest period tends to be July and August when coastal waters commonly reach 8–12 °C and in unusually warm summers may approach 13 °C. By September and October temperatures generally fall back to around 4–8 °C before dropping toward the winter low again. In sheltered bays and shallow areas temperatures can be a degree or two warmer in summer, while exposed currents keep open-sea temperatures steadier and cooler.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 2°C | 5°C | 7°C |
| February | 2°C | 4°C | 6°C |
| March | 1°C | 4°C | 6°C |
| April | 2°C | 4°C | 6°C |
| May | 2°C | 5°C | 9°C |
| June | 4°C | 8°C | 11°C |
| July | 7°C | 10°C | 13°C |
| August | 9°C | 11°C | 13°C |
| September | 7°C | 10°C | 12°C |
| October | 6°C | 8°C | 11°C |
| November | 4°C | 7°C | 9°C |
| December | 2°C | 6°C | 8°C |
* Click on a month to view detailed water temperature data.
Tromsø: Weather Forecast
June 11
June 12
Location, Beaches & Local Information
Nearby Beaches & Facilities
Telegrafbukta Beach
Swimming Conditions
Swimming and beach recreation in Tromsø reflect these temperature patterns: there is a short high-season for comfortable bathing in July and August, and most locals considering sea swimming outside that window use wetsuits or drysuits. Beaches such as those on Tromsøya and nearby islands offer pebble and sand spots for sunbathing, easy entry points for dips, and calmer bays suitable for families when conditions are settled, but services and lifeguards are limited. Many visitors combine swims with sauna or hot showers, or choose sheltered lakes and shallow coves that warm faster in sunlight. Open-water activities like kayaking, stand-up paddling and supervised cold-water swimming groups are common ways to enjoy the marine environment safely, with attention to weather, currents and appropriate thermal protection.