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.
Boise City Weather in September
September in Boise City brings high temperatures, with daytime highs of 29°C (84°F) and nights around 12°C (54°F). The excellent weather makes it a solid choice for a visit.
Rainfall in Boise City in September
Rain is expected on roughly 5 days, totalling around 46 mm (1.8 in) for the month. The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Boise City in September
If you're visiting Boise City in September, expect excellent temperatures with highs of 29°C (84°F) and overnight lows of 12°C (54°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Boise City.
Boise City Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
29°C (84°F)
Chance of Rain
17%
Precipitation
46 mm (1.8 in)
Rainy days
5 days
Humidity
52% *
* Data from: Clayton, the United States of America (64 KM, 40 Miles).
Boise City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Boise City - 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 Boise City in September
Warm but pleasant conditions in Boise City in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days.
What To Do in Boise City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
Boise City 3-Day Forecast
More climate data for Boise City
See the full Boise City 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.
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Yosemite National Park is definitely worth a visit
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