All data are in degrees Fahrenheit

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Water temperature in Anchorage

Detailed information about the current water temperature in Anchorage. 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 Anchorage now

54.0

°F

August 31, 12:50

Trend:

stable

Yesterday:

53.7°F

Tomorrow:

53.9°F

Sunrise:

06:49

Sunset:

21:10

Day Length:

14 h. 21 min.

Anchorage in September

Minimum:

34.8°F

Average:

36.6°F

Maximum:

38.1°F

Sea water temperature in Anchorage today

As of now, in Anchorage, the water temperature is 54.0°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 2.4°F lower 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 58.6°F on 2019, while the historical minimum was 54.3°F on 2022.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 53.4°F, the minimum temperature may reach 52.7°F, and the maximum might stay at 53.9°F.

Daily water temperature in Anchorage

Date Current Year

actual* / forecast**

last year 10 years average
Aug 17 57.6°F 58.6°F 58.2°F
Aug 18 58.0°F 58.6°F 57.8°F
Aug 19 58.1°F 58.6°F 57.8°F
Aug 20 56.8°F 58.4°F 57.6°F
Aug 21 56.7°F 58.6°F 57.5°F
Aug 22 56.6°F 58.2°F 57.3°F
Aug 23 56.5°F 58.0°F 57.1°F
Aug 24 56.6°F 58.2°F 57.2°F
Aug 25 55.9°F 57.9°F 56.9°F
Aug 26 56.2°F 57.9°F 56.9°F
Aug 27 54.5°F 55.8°F 56.6°F
Aug 28 54.5°F 55.7°F 56.6°F
Aug 29 54.9°F 55.7°F 56.6°F
Aug 30 53.7°F 56.4°F 56.1°F
Aug 31 54.0°F 56.7°F 56.4°F
Sep 1 53.9°F 56.6°F 56.3°F
Sep 2 53.7°F 56.4°F 56.1°F
Sep 3 53.5°F 56.2°F 55.9°F
Sep 4 53.4°F 56.3°F 55.8°F
Sep 5 53.3°F 56.4°F 55.7°F
Sep 6 53.1°F 56.3°F 55.5°F
Sep 7 52.7°F 56.0°F 55.1°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 Anchorage by month

In an average year, Anchorage offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Anchorage was recorded on July 11, 2019, reaching a 62.4°F. While the coldest temperature occurred on March 12, 2016, dipping to 32.0°F. The average readings by season are 36.2°F in Winter, 38.0°F in Spring, 56.3°F in Summer, and 45.8°F in Autumn.