December in Darwin averages a daily high of 33.1°C with nights around 25.4°C. Expect roughly 18.4 wet days totalling 294mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Darwin is May–August.
Based on DARWIN AIRPORT COMPARISON, AS (6.3km), 1995–2024. 21 years of December data.