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.
Alta Weather in September
September in Alta typically sees daytime highs of 20°C (68°F) and nighttime lows of 4°C (39°F). Expect some rainfall during the month.
Rainfall in Alta in September
Based on our climate data of the past 30 years, about 8 days of rain are anticipated, with 48 mm (1.9 in) on average. 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 Alta in September
The excellent temperature in Alta in September makes it a solid month to visit, with 20°C (68°F) during the day and 4°C (39°F) at night. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Alta in September
There are approximately 250 hours of sunshine this month, resulting in mostly clear days.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Alta.
Alta Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
20°C (68°F)
Chance of Rain
27%
Precipitation
48 mm (1.9 in)
Rainy days
8 days
Sunshine
250 hours *
Percentage Sunshine
*
* Data from: Jackson, the United States of America (37 KM, 23 Miles).
Alta Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alta - 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 Alta 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Alta in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping5/10 -
Outdoor sports10/10
Alta 3-Day Forecast
More climate data for Alta
See the full Alta 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
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