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

41.4

°F

May 8, 22:54

Trend:

stable

Yesterday:

42.6°F

Tomorrow:

41.8°F

Sunrise:

05:31

Sunset:

22:23

Day Length:

16 h. 52 min.

Anchorage in May

Minimum:

33.9°F

Average:

36.8°F

Maximum:

38.1°F

Sea water temperature in Anchorage today

As of now, in Anchorage, the water temperature is 41.4°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 0.3°F higher 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 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 falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 43.8°F on 2016, while the historical minimum was 37.9°F on 2023.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 43.0°F, with minimum temperature starting at 41.8°F, while the maximum might reach 44.3°F.

Daily water temperature in Anchorage

Date Current Year

actual* / forecast**

last year 10 years average
Apr 24 37.4°F 35.3°F 36.1°F
Apr 25 38.1°F 36.1°F 36.5°F
Apr 26 39.2°F 36.5°F 36.7°F
Apr 27 39.2°F 36.6°F 36.9°F
Apr 28 39.0°F 37.5°F 37.2°F
Apr 29 38.8°F 37.8°F 37.4°F
Apr 30 38.7°F 38.1°F 37.8°F
May 1 38.6°F 38.1°F 37.9°F
May 2 38.5°F 38.1°F 38.7°F
May 3 40.2°F 38.2°F 38.9°F
May 4 40.4°F 38.2°F 39.3°F
May 5 41.0°F 38.7°F 39.7°F
May 6 41.2°F 39.1°F 40.1°F
May 7 42.6°F 39.5°F 40.6°F
May 8 41.4°F 41.4°F 41.1°F
May 9 41.8°F 42.0°F 41.5°F
May 10 42.2°F 42.2°F 41.9°F
May 11 42.6°F 42.6°F 42.3°F
May 12 42.8°F 42.7°F 42.4°F
May 13 43.2°F 43.2°F 42.9°F
May 14 44.0°F 44.0°F 43.7°F
May 15 44.3°F 42.7°F 44.0°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 36.3°F in Winter, 38.2°F in Spring, 56.4°F in Summer, and 45.8°F in Autumn.