Cozy
Cable Knit and Mules
A grey cable knit with fleece-lined leggings and black mules in warmer weather is cozy without capitulating to the temperature. A knit beanie on a warm-clear day feels like a choice.
What to Wear in Phoenix in December
December in Phoenix is mild and sunny, with daytime highs averaging 66°F and cool nights dropping to 44°F — the city's best weather window for outdoor activity. Light jeans and a medium-weight jacket handle the daytime warmth while keeping you comfortable in the evening chill along the Arizona Canal or South Mountain trails. With only about 3 rainy days, you can safely leave the umbrella at home most of the time.
What to wear
top / Short-Sleeve Top
classic tee
bottom / Jeans
straight-leg
chinos for a slightly smarter look
footwear / Sneakers
classic sneakers
cushioned for all-day city walking
Consider bringing:
Sunglasses
Based on typical December conditions in Phoenix. Weather varies year to year — check the live forecast when you're within two weeks of your trip.
Phoenix in December offers a delightful escape from colder climates, characterized by abundant sunshine and comfortably mild temperatures. While daytime highs typically hover in the mid-60s Fahrenheit (around 18-20°C), often feeling warmer under the direct sun, visitors should prepare for a significant drop in temperature once evening arrives, with lows often dipping into the low 40s (5-7°C). This distinct diurnal shift makes layering absolutely essential for enjoying the full day in the Valley of the Sun. Precipitation is generally very low, making December one of Phoenix's driest and sunniest months, so you can largely leave the umbrella at home. For optimal comfort, pack versatile clothing. During the day, light long-sleeved shirts, t-shirts, or blouses paired with jeans, chinos, or even skirts are ideal. As the sun begins to set, you'll want to add a light to medium-weight jacket, a cardigan, or a sweater to stay warm. Comfortable walking shoes are a must for exploring the city's outdoor attractions or hiking nearby trails. Don't forget sunglasses and sunscreen, as the desert sun remains strong even in winter, ensuring you're perfectly prepared for Phoenix's pleasant December climate.
Curated Looks
Business Casual
Mauve Happy Hour
At 65–74°F the mauve tie-front cropped linen shirt earns its place over ivory wide-leg linen trousers. Ivory pointed-toe mules and aviator sunglasses make the commute feel like an editorial moment.
Casual
Bright, Blue, and Breezy
Embrace the 65–74°F sunny weather with a breathable linen shirt, classy bermuda shorts, and espadrilles. Pair it with a class bucket bag for that summer ready look.
Chic
White Shirt Wide-Leg
A white oversized button-down with ivory wide-leg linen trousers and a brown woven belt is the warm-clear uniform for someone who doesn't overthink it. Black mule heels are the one decisive choice.
Sporty
Biker Shorts Graphic Tee
A black graphic tee over biker shorts with mule heels is the warm-day sporty look that works from coffee to casual. The olive baseball cap adds a directional touch.
Formal
Ivory and Pleated Maxi
An ivory silk-look blouse tucked into a black pleated maxi skirt is the warm-clear formal look with evening flexibility. Espadrilles and a black mini bag make it daytime without losing the occasion feel.
Cute
Floral Skirt and Mules
A floral pleated midi skirt with a white fitted tank and black mules reads warm-day dressed-up without veering formal. A crochet bucket hat shifts the mood back to weekend.
Other Months in Phoenix
Frequently Asked Questions
what to wear in Phoenix in December+
Focus on versatile layers due to significant temperature swings between day and night. During the day, light tops like t-shirts or long-sleeved shirts are comfortable, often paired with jeans or light trousers. For cooler mornings and evenings, a sweater, cardigan, or a light to medium jacket is essential to stay warm.
is Phoenix cold in December+
Phoenix is not typically "cold" in December, especially compared to northern climates. Daytime temperatures are pleasantly mild, often reaching the mid-60s Fahrenheit. However, evenings and nights cool down considerably, often dropping into the low 40s, so a warm layer is definitely needed after sunset.
does it rain in Phoenix in December+
No, heavy rainfall is very uncommon in Phoenix during December. It's one of the driest months, with clear skies and abundant sunshine being the norm. You can generally leave your rain gear at home and expect pleasant, dry weather for your visit.
what should I pack for Phoenix in December+
Pack a variety of layers: t-shirts, light long-sleeved shirts, a sweater or fleece, and a light to medium jacket for evenings. Include comfortable walking shoes, sunglasses, and sunscreen. Jeans or versatile trousers are good staples, and consider a scarf for added warmth on cooler nights.
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