Cuaca Sun Valley di September
September di Sun Valley: nyaman, kering, dengan udara bersih — bukan waktu terbaik untuk berkunjung.
Diperbarui September 2026 · normal iklim dari reanalisis ERA5
#10 dari 12 bulan di Sun Valley · #1399 dari 1413 destinasi untuk dikunjungi di September · kenyamanan 18/100 (tier F)
- Siang
- 22°C
- Malam
- 3°C
- Hari hujan
- 5
- Matahari
- 10.8 h
- Kelembapan
- 52%
- Jam siang
- 13 h
Catatan pelancong tentang Sun Valley di September
Sun Valley-forum threads on September describe this as a genuine local favorite, mornings running crisp and cold while afternoons turn comfortably sunny and mild, the classic shoulder-season contrast. Posters call mid-September through mid-October a particularly strong stretch, aspen groves through the valley changing color by then. Regulars are direct the ski lifts close after Labor Day for the season, but call hiking and biking on the mountain still genuinely excellent, trails staying open well into autumn. Posters recommend the Sawtooth range as worth building a day around, conditions there called consistently good this time of year. Regulars describe layering as the standing advice given how much the temperature swings between morning and afternoon. Posters call September the month local regulars themselves recommend over the busier summer stretch. The record: 21.6C days feeling like 19C, 3.3C nights, a notably high 2.7cm of fresh accumulation and 52 percent humidity.
Bulan lain di Sun Valley
Sun Valley-forum threads on an April visit describe closing dates as genuinely variable year to year, posters naming Bald Mountain's typical second-weekend-of-April closure and Dollar Mountain's last-weekend-of-March finish as standard but conditions-dependent. Regulars call a thirty-six-year local's take that timing is always different a real reflection of how much this shifts season to season. Posters call early April genuinely still active beyond skiing, several regulars naming snowshoeing, skate skiing, thermal pools and shopping as standard alongside whatever terrain remains open. Regulars call the Dollar Dayz Cold Bowl Pond Skim a real end-of-season tradition, several threads naming live music and prizes as part of the closing celebration. Posters recommend checking current lift status before an April trip, several regulars calling this standard given how much dates can shift. The record: 10.5C days, -3.3C nights, 32.6mm across nearly 6 days and 71 percent humidity.
Sun Valley-forum threads on a mid-May visit describe the Prospector Loop as typically clear by this point, posters calling it a reliable lower-elevation option while cover still lingers higher up. Regulars call Adams Gulch and Fox Creek generally good bets too, though conditions here shift year to year depending on how the winter went. Posters call late May and early June still capable of trail closures at altitude, several routes not fully clearing until closer to summer. Regulars recommend checking current trail status directly before a May hike, local knowledge considered more reliable than a generic forecast this time of year. Posters call wildflowers a real May and June highlight worth timing a return trip around, conditions varying by elevation and exposure. The record: 15.6C days feeling like 15C, 1.3C nights, an extraordinarily high 55.2mm across over 8 days and 51 percent humidity.
Sun Valley-forum threads on planning a solo ski trip describe the resort as a genuinely comfortable choice for someone traveling alone, posters calling the town small enough to navigate easily and the ski school well set up for pairing solo skiers into groups. Regulars call March a mixed month by reputation, February generally considered the stronger snow month, March conditions dependent on whether the sun or a fresh system dominates the week. Posters describe a freeze-thaw pattern as a real risk this late in the season, slopes turning icy overnight and staying difficult until the sun properly softens them. Regulars recommend checking the current snow report closely rather than assuming a typical March. Posters call the town's restaurant scene and thermal springs a genuine bonus for a non-ski afternoon. Regulars recommend layering for real morning-to-afternoon swings. The record: 4.6C days feeling like 1C, -8.3C nights, 54.6mm across nearly 8 days and 75 percent humidity.
Sun Valley-forum threads on July trips describe an idyllic stretch, comfortable daytime temperatures paired with an unusually low humidity that regulars call a real point of pride locally, and an expansive resort campus that rarely feels crowded even at the height of summer. Posters call evenings genuinely cool, a real jacket worth packing even after a warm afternoon, since the desert-adjacent air loses heat fast once the sun sets. The Sun Valley Music Festival, running through July and August with free open-air symphony performances against the alpine backdrop, is repeatedly named a genuine summer highlight worth timing a visit around. Regulars call hiking, biking and fly fishing all in prime shape this time of year, trails clear and streams running well. The record: 27.2C days feeling like 28C, 8.2C nights, a very low 41 percent humidity and 14.5 hours of daylight.
Tambahkan catatan Anda dari kartu Sun Valley di peta.
Normal iklim Sun Valley — September
Rata-rata bulanan dari reanalisis ERA5. AQI adalah rata-rata Indeks Kualitas Udara AS untuk bulan itu.
Keramaian di Sun Valley pada September
Seberapa ramai tempatnya sendiri — libur sekolah dan libur massal, bulan-bulan yang ditandai editor, dan seberapa diburu tempat itu karena cuacanya. Tidak pernah menjadi bagian dari skor kenyamanan.
Puncak keramaianWagon Days, Summer break di Amerika Serikat(perkiraan)
Puncak keramaianRamaiMusim peralihanSepi
Bulan terbaik untuk cuaca Sun Valley
Diurutkan berdasarkan skor kenyamanan iklim destinasi ini sepanjang tahun — hal yang berbeda dari seberapa ramai tempatnya (lihat Keramaian di atas).
Cuaca tersulitCuaca Sun Valley memuncak Desember–Februari.
September bertepatan dengan Wildfire smoke season.
Cuaca terbaikCuaca lumayanCuaca tersulit
Agenda di Sun Valley pada September
Acara musiman berulang, fenomena alam, penutupan, dan hari libur — dikurasi dan bersumber jelas.
- Bahaya
Wildfire smoke season
20 Jul – 15 Sep · biasanyaSmoke from fires across Idaho and the Northwest fills the valley in most late summers, and a fire came to the edge of Ketchum in 2013. The mountains across the road disappear for days. Sumber ↗
- Festival
Wagon Days
3–8 Sep · biasanyaFestival besarRamaiOre wagons pulled down Ketchum's main street over Labor Day weekend in what is billed as the largest non-motorised parade in the west. The mining history it marks lasted about twenty years. Sumber ↗
- Alam
Aspens turning
25 Sep – 15 Okt · biasanyaDaun musim gugurThe aspen stands up Trail Creek and over Galena Summit turn in the first week of October, and the summit road is the drive for it before the snow closes the shoulder.
Di dekatnya, dan ada acara
Dalam radius 300 km dari Sun Valley — perjalanan sehari atau lompatan singkat — dengan sesuatu yang berlangsung bulan ini. Tidak pernah masuk ke skor kenyamanan.
Di mana Sun Valley?
Sun Valley di September — FAQ
- Apakah September waktu yang tepat untuk mengunjungi Sun Valley?
- September di Sun Valley: nyaman, kering, dengan udara bersih — bukan waktu terbaik untuk berkunjung. Bulan ini ada di peringkat #10 dari 12 bulan untuk Sun Valley menurut skor kenyamanan SeasonMap (18/100).
- Bagaimana cuaca di Sun Valley pada September?
- Pada September, Sun Valley rata-rata mencapai suhu tertinggi harian 21.6°C dan terendah 3.3°C, dengan sekitar 29.6 mm hujan sepanjang kurang lebih 5.2 hari hujan.
- Bagaimana kualitas udara di Sun Valley pada September?
- Sun Valley punya rata-rata Indeks Kualitas Udara AS sekitar 40 pada September.
- Apakah turun salju di Sun Valley pada September?
- Sun Valley mendapat sekitar 2.7 cm curah salju pada September.
Dalam radius 300 km: Aspens turning and the elk rut di Jackson, sekitar 15 Sep – 10 Okt, dan Aspen colour and the elk rut di Grand Teton National Park, sekitar 15 Sep – 10 Okt.