All data are in degrees Fahrenheit


Water temperature in Lerwick

Detailed information about the current water temperature in Lerwick. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Lerwick now



July 14, 05:28











Day Length:

18 h. 8 min.

Lerwick in July







Sea water temperature in Lerwick today

As of now, in Lerwick, the water temperature is 52.6°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.7°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 55.0°F on 2021, while the historical minimum was 51.9°F on 2015.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 52.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Lerwick

Date Current Year

actual* / forecast**

last year 10 years average
Jun 30 51.3°F 53.5°F 51.8°F
Jul 1 51.3°F 53.4°F 52.1°F
Jul 2 51.4°F 53.5°F 52.3°F
Jul 3 51.5°F 53.5°F 52.4°F
Jul 4 51.7°F 53.6°F 52.3°F
Jul 5 51.6°F 53.5°F 52.2°F
Jul 6 51.9°F 53.3°F 52.4°F
Jul 7 52.0°F 53.4°F 52.6°F
Jul 8 52.1°F 53.6°F 52.9°F
Jul 9 51.8°F 54.2°F 52.8°F
Jul 10 52.1°F 54.5°F 52.9°F
Jul 11 52.2°F 54.9°F 53.1°F
Jul 12 52.4°F 54.9°F 53.3°F
Jul 13 52.6°F 54.4°F 53.3°F
Jul 14 52.6°F 54.5°F 53.3°F
Jul 15 52.6°F 54.4°F 53.3°F
Jul 16 52.8°F 55.1°F 53.5°F
Jul 17 52.8°F 55.4°F 53.5°F
Jul 18 52.9°F 55.3°F 53.6°F
Jul 19 52.9°F 55.1°F 53.7°F
Jul 20 52.9°F 54.8°F 53.6°F
Jul 21 52.9°F 54.4°F 53.6°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Lerwick by month

In an average year, Lerwick offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Lerwick was recorded on July 30, 2014, reaching a 57.3°F. While the coldest temperature occurred on March 21, 2018, dipping to 42.8°F. The average readings by season are 46.6°F in Winter, 45.8°F in Spring, 53.0°F in Summer, and 52.3°F in Autumn.