Larvik — Water Temperature, Sea Conditions & Trends

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

Water temperature in Larvik has risen over the last week and month. Currently, the sea water temperature at this location matches the average for this day in previous years.

According to our forecast, Water temperature in Larvik will be 15.0°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Larvik lies on Norway’s sheltered Skagerrak coast in Telemark County and enjoys a maritime climate that moderates sea temperatures compared with more exposed parts of the country. Typical seasonal water temperatures around Larvik range from about 0–4 °C in the coldest months of winter, warming to roughly 3–10 °C during spring. By summer, coastal waters commonly reach 12–19 °C, with the warmest, shallow bays occasionally approaching 20 °C on the hottest days. In autumn temperatures generally fall back to around 8–13 °C as the sea cools, with regional variation depending on wind, currents and local sheltering from skerries and fjord arms.