December in Reservoir averages a daily high of 25°C with nights around 12.5°C. Expect roughly 8.9 wet days totalling 59.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Reservoir is November–April.
Based on BUNDOORA LATROBE UNIVERSITY, AS (4km), 1995–2024. 22 years of December data.