August in Bellingham averages a daily high of 23.5°C with nights around 12.4°C. Expect roughly 5.6 wet days totalling 25.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Bellingham is July–August.
Based on BELLINGHAM 3 SSW, WA US (5.1km), 1995–2024. 28 years of August data.