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

49.3

°F

October 10, 06:28

Trend:

stable

Yesterday:

49.0°F

Tomorrow:

49.1°F

Sunrise:

08:29

Sunset:

19:03

Day Length:

10 h. 34 min.

Anchorage in October

Minimum:

35.0°F

Average:

36.7°F

Maximum:

38.1°F

Sea water temperature in Anchorage today

As of now, in Anchorage, the water temperature is 49.3°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 1.9°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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 50.3°F on 2018, while the historical minimum was 45.4°F on 2021.

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 48.3°F, the minimum temperature may reach 47.4°F, and the maximum might stay at 49.1°F.

Daily water temperature in Anchorage

Date Current Year

actual* / forecast**

last year 10 years average
Sep 26 51.6°F 50.7°F 51.6°F
Sep 27 51.5°F 50.6°F 51.2°F
Sep 28 51.2°F 50.5°F 50.8°F
Sep 29 50.4°F 49.8°F 50.4°F
Sep 30 50.1°F 50.0°F 50.2°F
Oct 1 49.4°F 49.4°F 49.8°F
Oct 2 49.1°F 48.6°F 49.5°F
Oct 3 49.0°F 48.5°F 49.2°F
Oct 4 49.1°F 47.6°F 48.9°F
Oct 5 48.8°F 47.4°F 48.4°F
Oct 6 48.6°F 47.4°F 48.2°F
Oct 7 48.6°F 47.2°F 48.1°F
Oct 8 49.3°F 46.7°F 47.9°F
Oct 9 49.0°F 46.3°F 47.8°F
Oct 10 49.3°F 46.2°F 47.4°F
Oct 11 49.1°F 45.6°F 47.1°F
Oct 12 48.8°F 45.9°F 46.9°F
Oct 13 48.6°F 45.8°F 46.7°F
Oct 14 48.3°F 45.7°F 46.3°F
Oct 15 48.1°F 45.9°F 46.2°F
Oct 16 47.6°F 45.3°F 45.7°F
Oct 17 47.4°F 44.9°F 45.5°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.