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 12.91°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.

55.2

°F

June 14, 17:56

Trend:

decreasing

Yesterday:

55.4°F

Tomorrow:

55.1°F

Sunrise:

05:11

Sunset:

21:08

Day Length:

15 h. 57 min.

Seattle in June

Minimum:

45.9°F

Average:

47.6°F

Maximum:

49.4°F

Sea water temperature in Seattle today

As of now, in Seattle, the water temperature is 55.2°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 0.3°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 fall 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 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 55.9°F on 2017, while the historical minimum was 53.9°F on 2020.

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 55.5°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
May 31	53.2°F	52.6°F	53.3°F
Jun 1	52.9°F	53.6°F	53.6°F
Jun 2	53.0°F	52.3°F	53.7°F
Jun 3	53.6°F	52.6°F	54.1°F
Jun 4	53.4°F	52.9°F	54.6°F
Jun 5	53.3°F	54.8°F	54.6°F
Jun 6	54.4°F	54.9°F	54.7°F
Jun 7	54.1°F	56.1°F	54.8°F
Jun 8	53.1°F	56.0°F	54.6°F
Jun 9	54.1°F	57.0°F	55.0°F
Jun 10	53.9°F	57.6°F	54.9°F
Jun 11	53.9°F	57.7°F	55.1°F
Jun 12	54.1°F	58.1°F	55.2°F
Jun 13	55.4°F	55.2°F	54.6°F
Jun 14	55.2°F	55.0°F	54.9°F
Jun 15	55.1°F	54.6°F	54.8°F
Jun 16	54.9°F	53.7°F	54.6°F
Jun 17	55.2°F	54.8°F	54.8°F
Jun 18	55.5°F	54.9°F	55.2°F
Jun 19	55.7°F	55.9°F	55.3°F
Jun 20	56.2°F	55.6°F	55.8°F
Jun 21	56.3°F	55.7°F	56.0°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 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 January 29, 2022, dipping to 44.4°F. The average readings by season are 47.9°F in Winter, 49.6°F in Spring, 57.0°F in Summer, and 54.4°F in Autumn.