August in Phoenix: Weather and Event Guide

Phoenix Summer

 vvvita / Getty Images

August is a harrowing month to visit Phoenix. Sonoran Desert summers are sunny, hot and can be unforgiving to unprepared travelers. That being said, August in Phoenix also presents some unique opportunities for those willing and able to handle the heat. It’s offseason for area resorts and restaurants, and many offer special summer pricing – making an affordable trip to the Valley of the Sun in August easily accessible.

If you want to spend the majority of your time in Phoenix in the great outdoors, you might reconsider visiting in the month of August. Heat advisories are frequently issued, and extreme temperatures will test even the heartiest hiker. As a result, most events will be held indoors, and it’s a great chance to see popular area attractions without crowds. If you have your heart set on visiting Phoenix in August, we’re sharing some tricks of the trade to help you safely get the most out of your visit!

Phoenix Monsoon Season
mdesigner125 / Getty Images

Monsoon Season in Phoenix

In addition to the summer months in Phoenix being the hottest of the year, it’s also monsoon season. Monsoon season in Arizona is from June through September and brings with it the risk of flash floods and dust storms (a.k.a. haboobs). Flash flooding can cause inconvenient road closures, and dust storms can lead to dangerous driving conditions due to low visibility. A lot of locals love monsoon season due to the chance of rain, but if you’re visiting from an area where storms are the norm, you’ll likely be less than impressed.

Phoenix Weather in August

It is true that Phoenix summers offer a “dry heat” compared to most U.S. destinations, but don’t let that fool you. While humidity is fleeting, extreme desert temperatures can still be dangerous and should be taken seriously.

  • Average high: 104 degrees Fahrenheit (40 degrees Celsius)
  • Average low: 83 degrees Fahrenheit (28 degrees Celsius)
  • Average rainfall: 5 days

It’s important to keep in mind that on especially hot days (temperatures can get as high as 115 degrees Fahrenheit in August), the low may not fall below 100 degrees Fahrenheit. Meaning there might be little relief even after sunset!

What to Pack

With such high temperatures, it can be awfully tempting to wear as little clothing as-is decent, but sun protection is important to remember. After all, there’s nothing worse than getting severely sunburned on your first day of vacation! If you’re going to be spending time outdoors during the day, light, breathable fabrics that offer protection from the sun are best. Quality sunscreen is also a must-have, and don’t forget a hat in addition to your sunglasses. Bucket or sun hats that will cover your ears are best for extended time in the sun. Also, of course, don’t forget to pack your bathing suit. Whether you wear it poolside or at the resort’s spa, it will be impossible to resist a dip to cool off. If you’re planning on hitting the trails, it’s best to invest in hiking boots. Desert trails are rife with rocks, cacti, and the occasional pest—all of which a solid pair of boots will help deflect. Packing a reusable water bottle is also a great idea! You’ll want to stay hydrated, and having your own water on-hand will come in, well, handy!

August Events in Phoenix

August in Phoenix is more low-key in terms of events because the weather limits the populations who can be outside for extended periods of time (keep a close eye on kiddos and the elderly). However, those attractions which boast air conditioning will be buzzing with usually-active locals anxious to get out of the house.

  • Desert Botanical Gardens: This popular area attraction offers flashlight tours on Saturday nights throughout August. Stroll the Desert Botanical Gardens' paths to peruse night-blooming flora and nocturnal fauna.
  • Arizona Diamondbacks Baseball: Chase Field might be known for its massive retractable roof, but rest assured it remains closed during the month of August. The MLB team’s air-conditioned stadium also boasts the league’s first stadium swimming pool.
  • Museum Summer Exhibitions: Museums generally up-their-game during the month of August, boasting special exhibitions. Examples include the Arizona Science Center, Musical Instrument Museum, and the Phoenix Art Museum.

August Travel Tips

  • Consider booking accommodations directly through resorts’ websites and be sure to look out for summer specials and packages.
  • Fuel your inner foodie by checking out local restaurants that offer special summer menus. Oftentimes an eatery that might normally be out of your price range will offer preset menus at discounted prices.
  • As frivolous as it might sound…drink water. Lots of it! Folks who aren’t used to the dry desert climate and extreme heat can start to feel the negative effects of dehydration almost immediately.
  • Golfers will want to look into courses’ twilight rates when they can get steeply discounted tee times after 2 p.m.
  • Keep an eye on the weather forecast. Even though it’s likely to be sunny throughout your stay, authorities will sometimes issue heat advisories and flash flood warnings…encouraging folks to stay indoors.
  • If you want to spend your days poolside, research the local resorts’ offerings. Bonus luxuries like chilled pools and poolside cabanas (shade!) will go a long way toward making the experience bearable.
Was this page helpful?