Flagstaff Weather in July 2026
“The kind of pleasant weather you build a trip around.”
Roughly 11 rainy days across the month, on average.
July in Flagstaff runs 28.6C (83.5F) daytime highs and 15.6C (60.1F) overnight lows, a full 20C cooler than Phoenix at the same latitude thanks to the 7,000-foot elevation. Rainfall spikes to 57mm across 10.7 days as the North American Monsoon arrives, and sunshine still averages 12.6 hours a day between the afternoon storm cells. Wildflowers explode across Buffalo Park and the San Francisco Peaks retain snow above 12,000 feet into early July.
The on-ground story is monsoon rhythm and Phoenix escape. July monsoon hits daily 3pm; locals hike Humphreys Peak trail before dawn and Lowell Observatory star parties actually work between storm cells. The Grand Canyon Music Festival runs weekends at Shrine of the Ages, and Bearizona in Williams stays open until 8pm with the drive-through wolf pack most active in cool evenings. Route 66 through downtown fills with vintage car meets every Friday.
Ten-year NOAA data shows Flagstaff July temperatures have crept up 0.5C since 2016, but monsoon precipitation has become more variable: 2020 was the driest on record while 2021 broke rainfall records. For 2026, NWS Climate Prediction Center leans toward a wetter-than-average monsoon with active Baja California moisture, meaning classic afternoon buildups with lightning and hail. Flash flood potential on Oak Creek, West Fork and Wet Beaver Creek runs high most afternoons.
Travelers coming to Flagstaff in July 2026 should build itineraries around the monsoon clock: outdoor activities before 1pm, indoor or downtown options 2pm-6pm, then evening returns after cells clear. Grand Canyon South Rim day trips run comfortably at 16C on the rim while Phoenix bakes at 45C. Sedona shuttle from Flagstaff avoids parking chaos. Book lodges by March; the entire monsoon season is Flagstaff's hardest booking window as Phoenix and Tucson evacuate up to the cool. July 2026 rewards early risers.
At 7000 feet, altitude sickness hits Phoenix escapees hard; locals push water and skip alcohol first 48 hours. Historic downtown's Weatherford Hotel still has its 1897 zograscope in the lobby. Diablo Burger sources beef from local ranches within 250 miles by law. NAU students call it 'Flag' never Flagstaff. Sunset Crater's black lava fields are 900 years old and still warm underfoot in July.
What to pack for Flagstaff in July
July in Flagstaff means high-altitude sun, cool nights, and daily storm gear. Down puffy even in July because Grand Canyon rim drops to 4C at sunrise while Flagstaff sits at 21C:
- Lightweight rain shell for the 3pm monsoon cell, non-negotiable
- Long-sleeve sun hoody for UV at 7,000 feet elevation
- Light down or fleece for 15C evenings and Grand Canyon dawn
- Trail runners with tread for slick post-storm dirt trails
- Wide-brim hat and SPF 50, thin air burns fast
What to pack for Flagstaff in July
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Where to stay in Flagstaff
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Things worth doing
Sunrise Humphreys Peak trail hike, Grand Canyon South Rim day trip, Lowell Observatory star party, Bearizona drive-through wildlife park, Route 66 Friday car meet, Walnut Canyon cliff dwellings, Oak Creek Canyon scenic drive, dinner at Diablo Burger downtown.
July vs. the rest of the year
How this month compares in Flagstaff. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Flagstaff
July is one of the best months to visit Flagstaff — alongside April, May, June. 11-year climate data (2015–2025) confirms it: comfortable temperatures, manageable rainfall, and a healthy dose of sunshine.
See the full best-time-to-visit guide for FlagstaffOther places with a similar climate right now
Flagstaff in July — FAQ
Q01Is July a good month for Flagstaff?
Is July a good month for Flagstaff?
Yes — this is one of the best months of the year to visit. In July, Flagstaff averages a high of 29°C (83°F) and a low of 16°C (60°F), with 57mm of rainfall across roughly 11 rainy days. September-October brings golden aspen at Snowbowl and the Grand Canyon rim without summer thunderstorm evacuations or elk-rut road closures on 89.
Q02How warm does Flagstaff get in July?
How warm does Flagstaff get in July?
The average high temperature in Flagstaff during July is 29°C (83°F), with an average low of 16°C (60°F). These figures are averaged from 11 complete years of daily records (2015–2025, Open-Meteo Archive). July monsoon hits daily 3pm; locals hike Humphreys Peak trail before dawn and Lowell Observatory star parties actually work between storm cells.
Q03Does it rain a lot in Flagstaff in July?
Does it rain a lot in Flagstaff in July?
Flagstaff averages approximately 11 rainy days in July, with a total monthly rainfall of about 57mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What clothes should I bring to Flagstaff in July?
What clothes should I bring to Flagstaff in July?
For Flagstaff in July, pack light, breathable clothing (cotton or linen), sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on 11 complete years of weather averages for this specific month. Down puffy even in July because Grand Canyon rim drops to 4C at sunrise while Flagstaff sits at 21C.
Q05Are there many tourists in Flagstaff in July?
Are there many tourists in Flagstaff in July?
Tourist crowds in Flagstaff during July are typically high — this is peak season, expect crowds and higher prices. Consider this when planning accommodation — prices track crowd levels closely. At 7000 feet, altitude sickness hits Phoenix escapees hard; locals push water and skip alcohol first 48 hours. Historic downtown's Weatherford Hotel still has its 1897 zograscope in the lobby. Diablo Burger sources beef from local ranches within 250 miles by law. NAU students call it 'Flag' never Flagstaff. Sunset Crater's black lava fields are 900 years old and still warm underfoot in July.