What is the current water temperature in Seattle?

Q: What is the current water temperature in Seattle?

As of now, in Seattle, the water temperature is 10.78°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.

United States > Seattle

Water temperature in Seattle

Detailed information about the current water temperature in Seattle. 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.

51.4

°F

November 21, 01:54

Trend:

stable

Yesterday:

50.1°F

Tomorrow:

51.2°F

Sunrise:

07:24

Sunset:

16:26

Day Length:

9 h. 2 min.

Seattle in November

Minimum:

45.8°F

Average:

47.2°F

Maximum:

49.0°F

Sea water temperature in Seattle today

As of now, in Seattle, the water temperature is 51.4°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 0.6°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 52.5°F on 2019, while the historical minimum was 48.0°F on 2014.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 51.2°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Seattle

Date	Current Year actual* / forecast**	last year	10 years average
Nov 7	51.8°F	53.9°F	53.3°F
Nov 8	52.0°F	53.5°F	53.1°F
Nov 9	51.7°F	49.7°F	52.7°F
Nov 10	51.3°F	50.4°F	52.4°F
Nov 11	51.0°F	50.0°F	52.1°F
Nov 12	51.0°F	50.6°F	52.0°F
Nov 13	50.7°F	49.2°F	51.7°F
Nov 14	50.5°F	49.2°F	51.6°F
Nov 15	51.5°F	51.7°F	51.8°F
Nov 16	51.2°F	51.5°F	51.8°F
Nov 17	50.9°F	52.1°F	51.5°F
Nov 18	50.6°F	51.8°F	51.4°F
Nov 19	50.4°F	51.6°F	51.1°F
Nov 20	50.1°F	51.3°F	50.9°F
Nov 21	51.4°F	51.6°F	50.8°F
Nov 22	51.2°F	51.2°F	50.6°F
Nov 23	51.4°F	51.6°F	50.8°F
Nov 24	51.4°F	52.3°F	50.8°F
Nov 25	51.2°F	51.3°F	50.6°F
Nov 26	51.1°F	51.3°F	50.5°F
Nov 27	51.0°F	50.6°F	50.4°F
Nov 28	51.2°F	51.1°F	50.6°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 Seattle by month

In an average year, Seattle offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Seattle was recorded on July 6, 2021, reaching a 63.4°F. While the coldest temperature occurred on February 5, 2014, dipping to 44.4°F. The average readings by season are 47.6°F in Winter, 49.6°F in Spring, 57.1°F in Summer, and 54.3°F in Autumn.