Twin Falls
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Twin Falls Weather in September

September is one of the excellent months to visit Twin Falls, with daytime temperatures of 26°C (79°F) and lows of 9°C (48°F) at night. Rainfall is minimal, averaging just 14 mm (0.6 in) for the month.

Rainfall in Twin Falls in September

Looking at the last 30 years, the data shows about 4 days with rain, averaging 14 mm (0.6 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.

Temperature in Twin Falls in September

The excellent temperature in Twin Falls in September makes it a solid month to visit, with 26°C (79°F) during the day and 9°C (48°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Twin Falls.

Twin Falls Temperature in September

Min Temperature
9°C (48°F)
Max Temperature
26°C (79°F)
Chance of Rain
12%
Precipitation
14 mm (0.6 in)
Rainy days
4 days

Twin Falls Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Twin Falls - 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 Twin Falls in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home.

What To Do in Twin Falls in September

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

  • Cycling
    8/10
  • Walking
    8/10
  • Camping
    5/10
  • Outdoor sports
    8/10

Twin Falls 3-Day Forecast

More climate data for Twin Falls

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.