August in Tacoma averages a daily high of 25.1°C with nights around 14.3°C. Expect roughly 3.9 wet days totalling 19.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Tacoma is July–September.
Based on TACOMA NUMBER 1, WA US (2.5km), 1995–2024. 27 years of August data.