Review latest Amsterdam weather forecasts for December to confirm cold temperatures, likely ranging from 0°C to 6°C, with possible rain or snow, guiding final packing choices.
Pack thermal base layers, sweaters, and two pairs of jeans or trousers. Include quick-drying tops and a warm scarf, gloves and hat for additional cold protection.
Choose waterproof boots or sturdy shoes suitable for walking in wet conditions and cold weather, plus a pair of comfortable socks, preferably wool or thermal.
Distribute items smartly between suitcase and backpack to stay within 10kg limit: clothes and heavier items in suitcase, valuables and documents in backpack.
Prepare travel outfit aiming for warmth and comfort in transit, and double-check all essentials like passport, tickets, and wallet are easily accessible.