Embrace the Layers
Seriously, start with a t-shirt or light top, add a sweater or long-sleeved shirt, and finish with a light jacket. You'll be shedding and adding layers throughout the day as temperatures fluctuate.
December in Mexico City is a magical time, with festive decorations, a vibrant atmosphere, and wonderfully mild weather. While many destinations are bundling up for winter, you'll enjoy comfortable, spring-like days perfect for exploring everything this incredible city has to offer. Packing smart means you can seamlessly transition from daytime adventures to cozy evenings, ready for any holiday celebration!
We'll tune the list to your exact trip — dates, activities, and weather.
December in Mexico City brings delightful, dry winter weather. You can expect average daytime highs around 70-75°F (21-24°C) and pleasant evenings with lows typically dipping to 45-50°F (7-10°C). Rainfall is very unlikely, as December falls in the heart of the dry season, so leave the umbrella at home! Humidity levels are generally low, making the temperatures feel even more comfortable. You'll also enjoy ample daylight, with approximately 11 hours of sunlight each day, perfect for sightseeing.
The key to dressing for Mexico City in December is layering! While days are mild and sunny, the temperature can drop significantly once the sun sets. Locals tend to dress smartly, even casually, so avoid overly revealing clothing out of respect for local customs, especially when visiting religious sites. Think comfortable yet chic.
Lightweight insulated jacket or stylish cardigan
Essential for those surprisingly cool mornings and evenings, especially after the sun goes down, without being too bulky during the day.
Comfortable walking shoes or fashionable sneakers
You'll be doing a lot of exploring on cobblestone streets and uneven sidewalks, so happy feet are a must for all-day adventures.
Scarf
A versatile accessory that adds warmth in the evenings and can elevate an outfit, blending in with the local fashion sensibility.
Crossbody bag or anti-theft backpack
Keeps your valuables secure and close to your body while navigating bustling markets and crowded attractions.
Portable power bank
Crucial for keeping your phone charged after a full day of taking photos, navigating, and using translation apps.
Sunscreen and sunglasses
Despite it being winter, the high altitude means the sun's rays are strong, so protect your skin and eyes even on cooler days.
Reusable water bottle
Stay hydrated as you explore the city, reducing plastic waste and saving money with purified water refills.
Dressier outfit (e.g., nice trousers/blouse or sundress/jacket combo)
For enjoying Mexico City's incredible culinary scene or attending a special holiday event, many restaurants have a smart-casual dress code.
Small umbrella or packable rain jacket (just in case)
While rain is unlikely, an unexpected shower can always pop up, and it's better to be prepared without taking up much space.
Altitude sickness medication (if sensitive)
Mexico City's high altitude (7,382 feet) can affect some travelers, so consulting your doctor about medication is wise if you're prone to altitude sickness.
Seriously, start with a t-shirt or light top, add a sweater or long-sleeved shirt, and finish with a light jacket. You'll be shedding and adding layers throughout the day as temperatures fluctuate.
Mexico City is incredibly walkable, but the sidewalks can be uneven. Prioritize comfortable shoes with good support to truly enjoy exploring on foot.
The high altitude can lead to dehydration more quickly. Carry a reusable water bottle and fill it up frequently with purified water.
While many people in tourist areas speak English, a few basic Spanish phrases like 'Hola', 'Gracias', and 'Por favor' will go a long way and are always appreciated by locals.
If you're there closer to Christmas, look out for 'Posadas' – traditional Christmas processions and parties. They're a fantastic way to experience local holiday culture, but be ready for lively crowds!
December in Mexico City is characterized by dry and mild weather. Expect comfortable daytime temperatures around 70-75°F (21-24°C) and cooler evenings dropping to 45-50°F (7-10°C). Rain is very rare, and humidity is low, making for pleasant conditions.
Yes, definitely bring warm layers! While days are mild, evenings and early mornings can be quite cool. A light jacket, sweater, and even a scarf are essential to stay comfortable, especially after the sun sets.
No, it is not recommended to drink tap water in Mexico City. Stick to bottled purified water, or use a filtered water bottle. Most restaurants will serve purified water, and ice is typically made from purified water as well.
Comfortable walking shoes are paramount! You'll be doing a lot of walking on various surfaces, including cobblestones. Sneakers or supportive flats are ideal. You might also want to pack a slightly dressier pair for evenings out.
Absolutely! December is a festive month. You'll find Christmas decorations throughout the city, and if you're there leading up to Christmas, you might encounter 'Posadas' (traditional Christmas parties). December 12th is also the Day of the Virgin of Guadalupe, a major religious holiday with large celebrations.
When visiting churches or religious sites, it's respectful to dress modestly. This generally means covering your shoulders and knees. Avoid very short shorts, skirts, or tank tops. A light scarf can be handy for covering up if needed.