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Alta Weather in September

Thinking of visiting Alta in September? Expect moderate temperatures reaching 15°C (59°F) during the day, dropping to 6°C (43°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Alta in September

You can expect rain on around 12 days based on historical patterns, with 79 mm (3.1 in) average for the month. 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

In September, Alta gets moderate temperatures, with highs of 15°C (59°F). Nights cool to around 6°C (43°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Alta in September

Expect sunny days throughout the month, with an estimated 299 hours of sunshine. This makes it a pleasant time to visit Alta.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Alta's climate page.

Alta Temperature in September

Min TemperatureMin Temperature 6°C (43°F)  
Max TemperatureMax Temperature 15°C (59°F)  
Chance of RainChance of Rain 40%  
PrecipitationPrecipitation 79 mm (3.1 in)  
Rainy daysRainy days 12 days  
SunshineSunshine 299 hours *  
Percentage SunshinePercentage Sunshine 81% *  
* Data from: Park City, the United States of America (13 KM, 8 Miles).

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 →

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Legend 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

The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Alta in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Alta's climate page.

More climate data for Alta