Mild
Average highs are around 21°C, so days are mild rather than hot.
September verdict
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 9.2h per day, so bright days are a strong part of the month. Rainfall averages 24mm, which is relatively low for holiday planning.
Monthly averages
Temp
21°C
Rain
24mm
Sun
9.2h
Weather score
49
Mixed
Mild
Average highs are around 21°C, so days are mild rather than hot.
Drier
Rainfall averages 24mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9.2h per day, so bright days are a strong part of the month.
Map
Compare Hailey, Idaho, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September21°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September24mm average rain
September is one of Hailey's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September9.2 hours average sun
September sits close to Hailey's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
September49 weather score
September sits close to Hailey's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.