Hey guys! Planning a trip to Phoenix, Arizona, in December 2025 and wondering what kind of weather to pack for? You've come to the right place! Let's dive into what you can typically expect in terms of temperatures, sunshine, and overall conditions during December in the Valley of the Sun. Knowing what to expect will help you plan the perfect wardrobe and itinerary for your Phoenix adventure. You will want to optimize your packing list to make sure you have the right clothes. This guide will also help you understand how to make the most of your vacation to enjoy the scenery without worrying about any unexpected weather. Understanding the weather patterns will help you explore outdoor activities. Make the most of your vacation by taking advantage of the clear skies and comfortable temperatures of Phoenix during this time of year. Knowing what to expect also means being prepared for any slight variations in the weather, ensuring a seamless and enjoyable experience in this beautiful desert city.

Average Temperatures in Phoenix During December

When we talk about Phoenix weather in December, the first thing everyone wants to know is: How warm (or cool) will it be? Generally, December in Phoenix brings mild and comfortable temperatures, making it a great escape from colder climates. You'll typically see average high temperatures hovering in the mid-60s Fahrenheit (around 18-20 degrees Celsius). This is perfect weather for daytime activities, whether you're hiking, golfing, or exploring the city. And dont forget the evenings, they tend to be cooler, with average lows dipping into the mid-40s Fahrenheit (around 7-8 degrees Celsius). This means you'll definitely want to pack layers, so you can adjust your clothing as the day progresses. Think light jackets, sweaters, and maybe even a scarf for those chillier evenings. The contrast between daytime highs and nighttime lows is a key characteristic of desert climates, so being prepared for both is essential for a comfortable visit. During the day, you might be perfectly comfortable in a t-shirt and jeans, but as soon as the sun sets, you'll appreciate having that extra layer to keep you warm. This temperature range makes December an ideal time to visit Phoenix, as it avoids the extreme heat of the summer months while still offering plenty of sunshine and opportunities for outdoor adventures. The average temperatures provide a pleasant backdrop for exploring all that Phoenix has to offer, from its stunning desert landscapes to its vibrant cultural scene.

Sunshine and Daylight Hours

One of the biggest perks of visiting Phoenix in December is the abundance of sunshine. While other parts of the country might be dealing with gloomy skies and short days, Phoenix typically enjoys plenty of sunshine throughout the month. You can expect an average of around 8-9 hours of sunshine per day, which gives you ample time to explore the outdoors and soak up some Vitamin D. This is a major draw for tourists looking to escape the winter blues and enjoy some much-needed sunlight. The long hours of sunshine not only brighten your days but also enhance the beauty of the surrounding landscapes, making everything from hiking trails to city parks even more inviting. The clear skies also make it an ideal time for stargazing, as the desert air offers excellent visibility for celestial wonders. Beyond the sunshine, the quality of light in December is particularly appealing, casting a warm and golden hue over the landscape, perfect for photographers and nature enthusiasts alike. These extended daylight hours provide ample time for outdoor activities, from golfing and hiking to exploring local attractions and enjoying leisurely meals on patios. Whether you're planning a rigorous outdoor adventure or a relaxing getaway, the generous amount of sunshine in Phoenix during December ensures that you'll have plenty of daylight to make the most of your time.

Rainfall and Humidity

Okay, let's talk about rain – or rather, the lack thereof. Phoenix in December is generally pretty dry. You're unlikely to encounter much rainfall during your visit. The average rainfall for the entire month is usually less than an inch, so you probably won't need to pack your umbrella. This arid climate contributes to the overall comfort of the weather, as the low humidity levels make even the cooler temperatures feel more pleasant. The dryness also means that you can typically count on clear skies and sunny days, perfect for outdoor activities and sightseeing. However, it's worth noting that desert air can be quite dry, so it's a good idea to stay hydrated and use moisturizer to keep your skin from drying out. While rain is infrequent, it's always a good idea to check the forecast closer to your travel dates, just to be sure. Surprises can happen, but generally speaking, you can expect dry and sunny conditions during your December visit to Phoenix. The combination of low rainfall and low humidity creates an ideal environment for exploring the desert landscape and enjoying the city's many outdoor attractions. Whether you're hiking through the mountains, strolling through the botanical gardens, or simply relaxing by the pool, the dry air adds to the overall comfort and enjoyment of your Phoenix experience.

What to Pack for Phoenix in December

So, what should you pack for your Phoenix trip in December? Layers, layers, layers! As I mentioned earlier, the temperature can fluctuate quite a bit between day and night, so it's important to be prepared for both warm and cool conditions. During the day, you'll likely be comfortable in lightweight clothing such as t-shirts, shorts, or jeans. However, as the sun sets, you'll want to have a sweater, jacket, or light coat on hand to stay warm. Consider packing a versatile jacket that you can easily dress up or down, depending on your activities. Also, don't forget comfortable shoes for walking and exploring, especially if you plan on doing any hiking. Sunscreen is a must, even in December, as the Arizona sun can still be strong. A hat and sunglasses will also help protect you from the sun's rays. And, of course, don't forget to pack a swimsuit if you plan on taking a dip in the pool or visiting a spa. The low humidity can be tough on your skin, so pack a good moisturizer and lip balm to keep your skin hydrated. With the right clothing and accessories, you'll be well-prepared to enjoy all that Phoenix has to offer in December, regardless of the temperature fluctuations.

Activities to Enjoy in Phoenix During December

December is a fantastic time to visit Phoenix because the weather is so pleasant, making it ideal for a wide range of outdoor activities. Hiking is a popular choice, with numerous trails offering stunning views of the desert landscape. Some popular hiking spots include Camelback Mountain, South Mountain Park, and the McDowell Sonoran Preserve. Golfing is another favorite activity, with Phoenix boasting a plethora of world-class golf courses. Many courses offer special rates and packages during the off-season, making it an affordable option for golf enthusiasts. Exploring the Desert Botanical Garden is a must-do, as it showcases a diverse collection of desert plants and offers educational exhibits. The Phoenix Zoo is another great option for families, with a wide variety of animals from around the world. For those interested in arts and culture, the Heard Museum offers a fascinating look at Native American art and culture, while the Phoenix Art Museum features a diverse collection of works from various periods and styles. Attending a holiday event is a great way to experience the local culture, with numerous festivals, concerts, and light displays taking place throughout the month. No matter your interests, you'll find plenty of things to see and do in Phoenix during December, thanks to the mild weather and abundance of sunshine.

A Quick Recap of Phoenix Weather in December 2025

To summarize, when you're thinking about Phoenix weather in December of 2025, you can generally expect mild and comfortable temperatures, with average highs in the mid-60s Fahrenheit and lows in the mid-40s Fahrenheit. You'll enjoy plenty of sunshine, with an average of 8-9 hours per day, and very little rainfall. Pack layers to accommodate the temperature fluctuations between day and night, and don't forget your sunscreen, hat, and sunglasses. The weather is perfect for outdoor activities like hiking, golfing, and exploring the desert landscape. While I can't give you an exact forecast for December 2025 just yet, knowing these general trends should help you plan your trip and pack accordingly. Be sure to check a reliable weather source closer to your travel dates for the most up-to-date information. With a little preparation, you can look forward to a wonderful and weather-perfect vacation in Phoenix! Have a fantastic time!