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.