What is the current water temperature in Lerwick?

Q: What is the current water temperature in Lerwick?

As of now, in Lerwick, the water temperature is 9.48°C. 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.

United Kingdom > Lerwick

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.

49.1

°F

May 26, 12:00

Trend:

increasing

Yesterday:

48.8°F

Tomorrow:

49.2°F

Sunrise:

04:03

Sunset:

22:01

Day Length:

17 h. 58 min.

Lerwick in June

Minimum:

46.6°F

Average:

47.0°F

Maximum:

47.9°F

Sea water temperature in Lerwick today

As of now, in Lerwick, the water temperature is 49.1°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 0.5°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. 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 50.6°F on 2024, while the historical minimum was 47.3°F on 2020.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 49.5°F, with minimum temperature starting at 49.2°F, while the maximum might reach 49.9°F.

Daily water temperature in Lerwick

Date	Current Year actual* / forecast**	last year	10 years average
May 12	47.0°F	48.6°F	46.8°F
May 13	46.9°F	49.7°F	47.1°F
May 14	47.3°F	50.1°F	47.3°F
May 15	47.3°F	50.4°F	47.4°F
May 16	47.2°F	50.6°F	47.6°F
May 17	47.3°F	50.8°F	47.9°F
May 18	47.5°F	50.7°F	47.9°F
May 19	48.4°F	50.4°F	48.0°F
May 20	48.0°F	51.0°F	48.2°F
May 21	47.9°F	51.0°F	48.3°F
May 22	48.3°F	50.6°F	48.5°F
May 23	48.5°F	50.5°F	48.6°F
May 24	48.7°F	50.5°F	48.7°F
May 25	48.8°F	50.4°F	48.7°F
May 26	49.1°F	50.1°F	48.6°F
May 27	49.2°F	50.3°F	48.8°F
May 28	49.3°F	49.9°F	48.8°F
May 29	49.2°F	50.3°F	48.8°F
May 30	49.4°F	50.1°F	49.0°F
May 31	49.5°F	50.1°F	49.1°F
Jun 1	49.9°F	50.1°F	49.4°F
Jun 2	49.9°F	50.5°F	49.4°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 22, 2025, reaching a 58.3°F. While the coldest temperature occurred on March 21, 2018, dipping to 42.8°F. The average readings by season are 46.7°F in Winter, 46.0°F in Spring, 53.1°F in Summer, and 52.4°F in Autumn.