April in Royal Oak averages a daily high of 14.7°C with nights around 4.1°C. Expect roughly 12.2 wet days totalling 67.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Royal Oak is August–September.
Based on DETROIT CITY AIRPORT, MI US (14.4km), 1995–2024. 29 years of April data.