All data are in degrees Fahrenheit

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Water temperature in Astoria

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

50.7

°F

December 20, 16:10

Trend:

decreasing

Yesterday:

50.9°F

Tomorrow:

50.6°F

Sunrise:

07:54

Sunset:

16:32

Day Length:

8 h. 38 min.

Astoria in December

Minimum:

46.3°F

Average:

48.4°F

Maximum:

49.9°F

Sea water temperature in Astoria today

As of now, in Astoria, the water temperature is 50.7°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 2.1°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 stay about the same.

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 50.2°F on 2015, while the historical minimum was 47.8°F on 2022.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 50.3°F, the minimum temperature may reach 50.1°F, and the maximum might stay at 50.6°F.

Daily water temperature in Astoria

Date Current Year

actual* / forecast**

last year 10 years average
Dec 6 51.3°F 47.9°F 49.8°F
Dec 7 51.1°F 47.7°F 49.7°F
Dec 8 51.2°F 48.0°F 49.9°F
Dec 9 51.2°F 47.9°F 49.8°F
Dec 10 51.2°F 47.9°F 49.8°F
Dec 11 51.3°F 46.1°F 49.6°F
Dec 12 51.0°F 46.4°F 49.6°F
Dec 13 51.1°F 46.8°F 49.3°F
Dec 14 51.4°F 47.3°F 49.3°F
Dec 15 51.7°F 47.4°F 49.2°F
Dec 16 51.5°F 47.4°F 49.0°F
Dec 17 51.5°F 47.8°F 49.0°F
Dec 18 50.9°F 48.0°F 48.7°F
Dec 19 50.9°F 48.2°F 48.8°F
Dec 20 50.7°F 48.1°F 48.7°F
Dec 21 50.6°F 48.6°F 48.6°F
Dec 22 50.5°F 48.1°F 48.4°F
Dec 23 50.6°F 48.3°F 48.5°F
Dec 24 50.3°F 46.4°F 48.2°F
Dec 25 50.2°F 46.8°F 48.1°F
Dec 26 50.1°F 47.1°F 48.1°F
Dec 27 50.1°F 47.3°F 48.0°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 Astoria by month

In an average year, Astoria offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Astoria was recorded on July 31, 2021, reaching a 70.5°F. While the coldest temperature occurred on January 30, 2025, dipping to 41.1°F. The average readings by season are 47.9°F in Winter, 51.2°F in Spring, 61.8°F in Summer, and 57.2°F in Autumn.