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

43.4

°F

May 19, 19:28

Trend:

stable

Yesterday:

43.5°F

Tomorrow:

43.6°F

Sunrise:

05:00

Sunset:

22:53

Day Length:

17 h. 53 min.

Anchorage in May

Minimum:

35.8°F

Average:

37.0°F

Maximum:

38.1°F

Sea water temperature in Anchorage today

As of now, in Anchorage, the water temperature is 43.4°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 2.4°F lower 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 49.1°F on 2016, while the historical minimum was 42.8°F on 2018.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 44.4°F, with minimum temperature starting at 43.6°F, while the maximum might reach 45.2°F.

Daily water temperature in Anchorage

Date Current Year

actual* / forecast**

last year 10 years average
May 5 38.7°F 38.3°F 39.8°F
May 6 39.1°F 37.3°F 40.2°F
May 7 39.5°F 37.5°F 40.6°F
May 8 41.4°F 37.9°F 41.2°F
May 9 42.0°F 38.4°F 41.5°F
May 10 42.2°F 38.8°F 42.0°F
May 11 42.8°F 39.2°F 42.6°F
May 12 42.9°F 39.5°F 42.8°F
May 13 43.5°F 40.4°F 43.4°F
May 14 44.3°F 41.5°F 44.1°F
May 15 42.7°F 42.5°F 44.4°F
May 16 43.6°F 43.4°F 44.8°F
May 17 43.5°F 43.7°F 45.1°F
May 18 43.5°F 42.0°F 45.3°F
May 19 43.4°F 43.4°F 45.8°F
May 20 43.6°F 42.2°F 46.1°F
May 21 43.7°F 42.5°F 46.2°F
May 22 44.1°F 43.9°F 46.5°F
May 23 44.4°F 45.1°F 46.9°F
May 24 44.7°F 45.2°F 47.1°F
May 25 44.9°F 45.4°F 47.4°F
May 26 45.2°F 45.8°F 47.6°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 February 1, 2014, dipping to 32.0°F. The average readings by season are 36.3°F in Winter, 38.1°F in Spring, 56.4°F in Summer, and 45.9°F in Autumn.