Tacoma — Water Temperature in August

Water Temperature Range

11°C

minimum

13°C

average

15°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2026	2025	2024	2023
AUG 1	-	15°C	12°C	13°C
AUG 2	15°C	13°C	12°C	13°C
AUG 3	14°C	13°C	13°C	13°C
AUG 4	14°C	13°C	12°C	13°C
AUG 5	14°C	13°C	12°C	13°C
AUG 6	14°C	13°C	13°C	13°C
AUG 7	14°C	13°C	13°C	13°C
AUG 8	14°C	13°C	12°C	14°C
AUG 9	14°C	13°C	13°C	14°C
AUG 10	14°C	13°C	13°C	13°C
AUG 11	14°C	13°C	13°C	13°C
AUG 12	14°C	13°C	13°C	13°C
AUG 13	15°C	13°C	13°C	13°C
AUG 14	15°C	13°C	13°C	13°C
AUG 15	15°C	13°C	13°C	13°C
AUG 16	14°C	13°C	12°C	14°C
AUG 17	15°C	13°C	12°C	14°C
AUG 18	15°C	13°C	13°C	13°C
AUG 19	14°C	13°C	13°C	13°C
AUG 20	14°C	14°C	14°C	14°C
AUG 21	14°C	13°C	13°C	14°C
AUG 22	14°C	13°C	13°C	13°C
AUG 23	14°C	13°C	13°C	13°C
AUG 24	14°C	14°C	13°C	14°C
AUG 25	14°C	13°C	13°C	13°C
AUG 26	15°C	13°C	13°C	13°C
AUG 27	15°C	13°C	13°C	13°C
AUG 28	15°C	13°C	12°C	14°C
AUG 29	15°C	13°C	13°C	13°C
AUG 30	14°C	13°C	13°C	14°C
AUG 31	14°C	13°C	13°C	13°C

August: Climate and Swimming Opportunities

Average Night Air Temperature

13°C

Average Day Air Temperature

25°C

Precipitation Amount per Month

25 mm

Number of Rainy Days

Daylight per Day

14 hrs

Sunshine per Day

9 hrs

Average Wind Speed

11 km/h

Average Humidity

69%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.