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

44.0

°F

May 25, 04:51

Trend:

increasing

Yesterday:

43.2°F

Tomorrow:

44.3°F

Sunrise:

04:49

Sunset:

23:05

Day Length:

18 h. 16 min.

Anchorage in June

Minimum:

34.2°F

Average:

36.6°F

Maximum:

38.3°F

Sea water temperature in Anchorage today

As of now, in Anchorage, the water temperature is 44.0°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 3.3°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 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 49.9°F on 2022, while the historical minimum was 45.3°F on 2018.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 45.6°F, with minimum temperature starting at 44.3°F, while the maximum might reach 46.6°F.

Daily water temperature in Anchorage

Date Current Year

actual* / forecast**

last year 10 years average
May 11 39.2°F 42.7°F 42.0°F
May 12 40.1°F 42.9°F 42.2°F
May 13 40.2°F 44.5°F 42.8°F
May 14 40.8°F 44.5°F 43.4°F
May 15 40.7°F 44.9°F 43.7°F
May 16 41.4°F 45.6°F 44.3°F
May 17 41.6°F 45.4°F 44.7°F
May 18 41.8°F 45.3°F 44.7°F
May 19 42.2°F 45.4°F 45.0°F
May 20 42.5°F 45.6°F 45.4°F
May 21 42.6°F 45.6°F 45.6°F
May 22 43.3°F 45.6°F 46.0°F
May 23 43.0°F 46.4°F 46.3°F
May 24 43.2°F 46.7°F 46.5°F
May 25 44.0°F 48.8°F 47.3°F
May 26 44.3°F 49.0°F 47.5°F
May 27 44.5°F 49.5°F 47.8°F
May 28 45.2°F 49.9°F 48.5°F
May 29 45.8°F 50.3°F 49.0°F
May 30 46.3°F 50.1°F 49.5°F
May 31 46.5°F 50.0°F 49.7°F
Jun 1 46.6°F 49.9°F 49.9°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, 56.4°F in Summer, and 45.8°F in Autumn.