Japanese people wear warm winter clothes such as coats, sweaters, and scarves to stay warm in the cold winter months. How should I dress in Japan in December? Dress in layers with warm, waterproof clothing in December in Japan, as the average temperature is 45°F (7°C).

Dressing for Tokyo in December requires a "High-Fidelity" strategy of layering, as you will frequently transition between the chilly outdoors and very well-heated buildings, trains, and shops. The weather is typically dry and crisp, with daytime highs around 10°C to 12°C (50°F to 54°F) and night temperatures dropping near freezing. A warm, medium-weight wool coat or a down jacket is essential. Underneath, wear "Heattech" thermal layers (available at any Tokyo Uniqlo) paired with sweaters or light pullovers. Since Tokyoites tend to dress in a "refined, neutral" style, leaning toward blacks, greys, and navy blues will help you blend in. Scarves are a high-fidelity accessory for protecting your neck against the sharp winter wind, and comfortable walking shoes are a must. For 2026 travelers, avoid overly bulky "Arctic" gear; instead, focus on high-quality layers that are easy to remove once you step into the toasty environment of the Tokyo Metro or a department store, ensuring you stay comfortable throughout your day of exploration.