Packing guide for the Southwest: Arizona, New Mexico and Nevada
The Southwest is mostly desert. In low cities such as Phoenix and Las Vegas, summer days are extremely hot, often above 100°F (38°C). The air is very dry, and nights can be much cooler than days. From about July to September, the monsoon season brings sudden thunderstorms, dust storms and flash floods. Higher places such as Flagstaff and Santa Fe have cold, snowy winters.
States in this guide: Arizona, New Mexico and Nevada.
General information only. Weather varies a lot inside each region and from year to year. Check the forecast for your city on weather.gov before you pack, and follow the official travel rules linked below.
Your packing checklist
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Summer
- Light, loose, light-colored clothes
- Wide-brim hat, sunglasses and sunscreen
- Large refillable water bottle
- Breathable shoes, plus closed shoes for hikes
Winter
- Warm jacket for cold desert nights
- Real winter gear if you live at high elevation
Every day
- Lip balm and moisturizer
Summer (May to September)
- Light, loose, light-colored clothes, a wide-brim hat, sunglasses and sunscreen.
- A large refillable water bottle. Carry water whenever you go out, and avoid outdoor activity in the hottest hours.
- Sandals or breathable shoes, but closed shoes for hikes.
Winter (December to February)
Days are mild in the low deserts, but nights can be near freezing. Bring a warm jacket. In high-elevation towns, pack real winter gear.
Local tips
- Lip balm and moisturizer for the very dry air.
- During monsoon storms, never drive into flooded roads or washes.
- Car interiors and seat belts get extremely hot. Never leave children, pets or medicines in a parked car.
For documents, medicines, electronics, food and money, see our general packing guide for newcomers. It applies to every region.