August in Dundalk averages a daily high of 30.8°C with nights around 22.1°C. Expect roughly 9.4 wet days totalling 112.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Dundalk is April–May.
Based on MARYLAND SCIENCE CENTER, MD US (8.5km), 1995–2024. 24 years of August data.