April in Alpharetta averages a daily high of 22.9°C with nights around 10.1°C. Expect roughly 10.1 wet days totalling 99mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Alpharetta is September–November.
Based on ATLANTA DEKALB PEACHTREE AIRPORT, GA US (21.9km), 1995–2024. 27 years of April data.