July in Medan averages a daily high of 32.5°C with nights around 23.4°C. Expect roughly 5.4 wet days totalling 62.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Medan is December–July.
Based on POLONIA, ID (2.9km), 1995–2024. 16 years of July data.