When to go · Alta

Alta in September

Avoid month. Listed as a month to avoid: Jun–Sep (limited ski, warm).

Key facts

Verdict: Avoid
Temperature: 20°C (68°F)68°F (20°C) / 7°C (45°F)45°F (7°C); average high / low
Rain days: 6
Crowds: Medium; United States overall
Prices: Medium; United States overall

Plan around it

Verdict

AvoidBest and avoid months for Alta

Listed as a month to avoid: Jun–Sep (limited ski, warm).

Is another month better than September?

September is rated avoid. These months rate higher:

Weather in September

Long-term averages

AltaHighs around 20 °C (68 °F), lows around 7 °C (45 °F), rain on about 6 daysHighs around 68 °F (20 °C), lows around 45 °F (7 °C), rain on about 6 days

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.

Crowds and prices

Crowds · United States overall: Medium
Prices · United States overall: Medium

United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.

Compare two months

Weather, crowds and prices for any two months in Alta, side by side.

First month

Second month

Verdict
Sep: Avoid
Jan: Great (better)
Daytime high
Sep: 20 °C (68 °F)68 °F (20 °C)
Jan: -2 °C (28 °F)28 °F (-2 °C)
Night low
Sep: 7 °C (45 °F)45 °F (7 °C)
Jan: -12 °C (10 °F)10 °F (-12 °C)
Rain days
Sep: 6
Jan: 5 (better)
Crowds
Sep: Medium
Jan: Low
Prices
Sep: Medium
Jan: Low
Festivals listed
Sep: 1
Jan: 0

September: Listed as a month to avoid: Jun–Sep (limited ski, warm).

January: Inside Alta's best window: Dec–Mar, Apr–May (best snow, fewer crowds).

Alta: figures are long-term averages from this guide, not a forecast.

What to pack

A warm layer for the evenings

Build the full packing list for your trip →

Across United States in September →