July in Oldenburg averages a daily high of 23.2°C with nights around 13°C. Expect roughly 14 wet days totalling 78.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Oldenburg is May–September.
Based on FRIESOYTHE EDEWECHTERDAM, GM (19km), 1995–2024. 24 years of July data.