January in Naha averages a daily high of 19.7°C with nights around 15.1°C. Expect roughly 11.8 wet days totalling 98.6mm. 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. 24 years of January data.