Sea Temperature in Seattle in July

Complete information on the sea temperature range in the Salish Sea in Seattle in July. Historical daily data. Climate details for July. Tips on swimming conditions and beach relaxation in Seattle. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Seattle in July

10°C

MINIMUN

12.5°C

AVERAGE

15°C

MAXIMUM

Historical Data of Water Temperature in July in Seattle

Water Temperature Chart for Salish Sea in Seattle in July

Sea Temperature Table in Seattle in July Over the Past Years

Day	2024	2023	2022	Average
Jul 1	13°C	12°C	15°C	12.8°C
Jul 2	14°C	12°C	13°C	12.3°C
Jul 3	13°C	12°C	14°C	12.5°C
Jul 4	14°C	12°C	14°C	12.8°C
Jul 5	13°C	12°C	14°C	12.5°C
Jul 6	14°C	12°C	15°C	13.3°C
Jul 7	13°C	13°C	14°C	13.0°C
Jul 8	13°C	13°C	13°C	12.8°C
Jul 9	13°C	13°C	14°C	13.0°C
Jul 10	13°C	13°C	12°C	12.3°C
Jul 11	13°C	14°C	13°C	12.8°C
Jul 12	13°C	14°C	13°C	12.8°C
Jul 13	13°C	13°C	14°C	12.8°C
Jul 14	12°C	13°C	14°C	12.5°C
Jul 15	13°C	15°C	13°C	13.0°C
Jul 16	12°C	14°C	13°C	12.8°C
Jul 17	12°C	13°C	13°C	12.5°C
Jul 18	13°C	13°C	13°C	12.5°C
Jul 19	13°C	14°C	13°C	13.0°C
Jul 20	13°C	13°C	12°C	12.5°C
Jul 21	13°C	13°C	12°C	12.5°C
Jul 22	13°C	13°C	15°C	13.0°C
Jul 23	13°C	13°C	13°C	12.5°C
Jul 24	14°C	13°C	12°C	12.3°C
Jul 25	13°C	13°C	13°C	12.5°C
Jul 26	13°C	13°C	12°C	12.3°C
Jul 27	12°C	13°C	13°C	12.3°C
Jul 28	13°C	13°C	14°C	12.8°C
Jul 29	13°C	12°C	13°C	12.3°C
Jul 30	13°C	13°C	15°C	13.3°C

Seattle Climate and Swimming Opportunities in July

24°C

Average Day Air Temperature

13°C

Average Night Air Temperature

20 mm

Precipitation Amount per Month

5 days

Number of Rainy Days

15 hrs

Daylight
per Day

10 hrs

Sunshine
per Day

12 km/h

Average Wind Speed

67%

Average
humidity

Seattle lies within the Washington in United States. The average daytime temperature in Seattle in July is 75°F (24°C), while the nighttime average is 55°F (13°C). There are typically five rainy days during the month, with a total precipitation of 0.8 inches (20 mm). The daylight duration in July in Seattle is 15 hours, with an average of 10 hours of sunshine per day. The average wind speed in July is 7 mph (12 km/h), and the humidity level is around 67%.

The water temperature in Seattle in July ranges from 54°F to 55°F (12°C to 13°C). At the beginning of the month, the average temperature is around 55°F (13°C), shifting to 55°F (13°C) by mid-July and reaching 55°F (13°C) in the last ten days. Overall, the average sea temperature in Seattle for July is 55°F (13°C). The contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.

Sea Temperature in July in Nearby Cities

Frequently Asked Questions About Water Temperatures in July in Seattle

What is the sea temperature in Seattle in July?

The water temperature in the Salish Sea in Seattle in July ranges from 54°F to 55°F (12°C to 13°C).

Is it possible to swim in the Salish Sea in Seattle in July?

The average sea temperature in Seattle in July is 55°F (13°C), and the air temperature is 75°F (24°C), so the contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.