December in Naha averages a daily high of 21.6°C with nights around 16.7°C. Expect roughly 11 wet days totalling 116.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Naha is October–May.
Based on NAHA, JA (1.5km), 1995–2024. 23 years of December data.