What to pack for Mexico City in December
Heading to Mexico City in December? Here's a packing list built directly from local climate averages — not generic blog advice.
December is one of the coldest months of the year in Mexico City (ranked 12 of 12) and among the driest (ranked 12 of 12). Day temperatures are flat compared to November and holding steady into January — so this month's packing list won't be identical to November's or January's.
Essentials
- ★ Passport + a photocopy stored separately Travel documents
- ★ Phone + charging cables (USB-C, Lightning as needed) Daily essentials
- • Refillable water bottle (1L) Reduces single-use plastic + saves money
- • Compact daypack (15–20L) For day trips, hands-free walking
- • Travel-size first-aid kit (band-aids, ibuprofen, antihistamines) Pharmacy access varies
Tops
- ★ T-shirts (5–6) — cotton or merino Avg high 22°C — warm
- • 1–2 long-sleeve linen or chambray shirts Cooler evenings + sun protection
Bottoms
- ★ Light chinos or trousers (1–2) Cooler evenings + cultural sites
- • Shorts (2) — knee-length Daytime warmth
Outerwear & layers
- ★ Mid-weight jacket — packable down (e.g. Uniqlo Ultra-Light Down) or trench Overnight lows 6°C — cool
- · Light scarf Versatile + comfort
Rain & weather protection
- · Travel-sized umbrella Just in case (low rain risk)
Footwear
- ★ Cushioned-sole walking sneakers (e.g. Hoka, On Cloud, New Balance 990) — broken in! Mexico City's cobblestones turn cheap shoes into foot-killers within 2 hours
- • Lightweight sneakers (1 backup pair) Rotation prevents blisters
Accessories
- ★ Strong SPF 50+ sunscreen — face stick + body lotion Altitude UV is roughly 25% stronger per 1,000m elevation
- ★ Wraparound or polarized sunglasses (UV400) Snow/altitude glare can damage eyes fast
- ★ Wide-brim or peaked hat that won't blow off (with chin strap) Mountain wind + intense sun
Local style + dress code
- ★ Altitude meds (Diamox / acetazolamide) — discuss with your doctor Mexico City sits above 2,500m — altitude sickness risk
- • 1 nicer outfit (collared shirt or dress + dark trousers + non-sneaker shoes) Locals dress smart-casual — e.g. Mexico City restaurants and evenings expect more than t-shirt + sneakers
- · Coca tea (locally sold) helps acclimatization Traditional remedy for soroche
Power, voltage & adapters
- ★ 127V at 60Hz Mains electricity standard for Mexico
- ★ Plug types: A, B (Type A — flat 2-pin (US/Canada/Japan style)) Most common: A. Older buildings may also use B.
- • From the UK/Ireland: bring a G→A travel adapter UK Type G plugs don't fit Mexico's outlets
- • From continental Europe: bring a C/F→A travel adapter EU Type C/F plugs don't fit Mexico's outlets
- • If your device is labeled '220–240V only' (common for European hairdryers/kettles), it WILL underperform or not work at all here. Most phone/laptop chargers are dual-voltage — they're fine. Mexico runs 127V — too low for EU-only 230V devices
- · Easiest option: a universal travel adapter (e.g. Anker, Epicka) that handles A/B/C/E/F/G/I in one — covers ~95% of countries. If you travel to multiple regions
✅ Can you carry-on?
Yes — December in Mexico City packs comfortably into a carry-on. Conditions stay mild enough that you can rely on light layers, one pair of shoes, and a packable rain shell.
26 suggested items total — 5 essentials, 6 clothing items, 2 pairs of shoes.
What you can leave at home
Based on Mexico City's December climate, here's what won't earn its bag space:
- beach towel (unless you're brave)
- rain shell and waterproof bag covers (sky stays mostly dry)
- snow boots and ice grips
How this list was built
Every recommendation above maps to specific climate data for Mexico City in December: average high (22°C), average low (6°C), expected rain days (2), and any peak hazard seasons. Heavier items appear at colder temperatures; rain gear scales with how often it rains; sun protection appears when it's warm and dry.
The ★ items are essential — pack these first. The • items are recommended for comfort. The · items are nice-to-have if you have space.
Other months in Mexico City
Daily forecasts, climate averages, and the best activities for the season.