Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Flagstaff Weather in September
September in Flagstaff brings high temperatures, with daytime highs of 24°C (75°F) and nights around 6°C (43°F). The excellent weather makes it a solid choice for a visit.
Rainfall in Flagstaff in September
Historically, approximately 10 days this month are expected to have rain, averaging 50 mm (2 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Flagstaff in September
Flagstaff in September is worth a visit. The temperature is excellent, with 24°C (75°F) during the day and 6°C (43°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Flagstaff.
Flagstaff Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
24°C (75°F)
Chance of Rain
33%
Precipitation
50 mm (2 in)
Rainy days
10 days
Flagstaff Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Flagstaff - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Flagstaff in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days.
What To Do in Flagstaff in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling10/10 -
Walking10/10 -
Camping5/10 -
Outdoor sports10/10
Flagstaff 3-Day Forecast
More climate data for Flagstaff
See the full Flagstaff climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.