Väder i Sun Valley i augusti

Sun Valley i augusti: varmt, torrt, med ren luft — en av de svagaste månaderna att besöka.

Uppdaterad september 2026 · klimatnormaler från ERA5-reanalysen

Sun Valley🇺🇸 United States · Klippiga bergen · Skidor14
  1. 86jan
  2. 91feb
  3. 83mar
  4. 58apr
  5. 34maj
  6. 20jun
  7. 12jul
  8. 14aug
  9. 18sep
  10. 45okt
  11. 72nov
  12. 88dec

Plats 11 av 12 månader i Sun Valley · plats 1388 av 1413 resmål att besöka i augusti · komfort 14/100 (nivå F)

Dagar
26°C
Nätter
8°C
Regndagar
3
Sol
12.4 h
Luftfuktighet
45%
Dagsljus
14 h

Resenärernas anteckningar om Sun Valley i augusti

Forum posters consistently describe August weather in Sun Valley itself as wonderful, with the in-town river, bike path and hot springs all named as highlights for the season. Posters do flag a real day-trip caveat: nearby Craters of the Moon National Monument gets genuinely, uncomfortably hot in August, with posters recommending an early start, plenty of water and sun protection for that specific excursion even though Sun Valley proper stays comfortable. Posters also point to the area's free outdoor symphony (reportedly the largest free symphony series in the US) as a distinctive summer draw. The clear practical tip posters repeat: book accommodation well ahead, since hotels have filled up as early as May in past years for the August season.
Tripadvisor community · augusti · för 5 dagar sedan · Läs mer på Tripadvisor ↗

Andra månader i 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.
SunValleyAprilRegular · april · för 2 dagar sedan · Läs mer på Tripadvisor ↗
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.
SunValleyMayRegular · maj · för 3 dagar sedan · Läs mer på Tripadvisor ↗
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.
SunValleyMarchRegular · mars · för 3 dagar sedan · Läs mer på Tripadvisor ↗
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.
SunValleySeptemberRegular · september · för 3 dagar sedan · Läs mer på Tripadvisor ↗

Lägg till din egen anteckning från Sun Valleys kort på kartan.

Klimatnormaler för Sun Valley — augusti

Dagshögsta26°C / 79°F🌤 varmt
Nattlägsta8°C / 46°F
Känns som (högsta)24°C / 75°F
Nederbörd23 mm / 0.9 tum☀️ torrt
Regndagar3 dagar
Luftfuktighet45 %🍃 behagligt
Daggpunkt6°C / 42°F
Solsken12.4 h/dygn
Dagsljus13.9 h
Vind13 km/h / 8 mph
Luftkvalitet (US AQI)46🍃 bra

Månadsmedelvärden från ERA5-reanalysen. AQI är månadens medelvärde för det amerikanska luftkvalitetsindexet.

Trängsel i Sun Valley i augusti

Hur mycket folk det är på själva platsen — skollov och storhelger, månaderna en redaktör har märkt upp, och hur eftertraktade vädret gör dem. Aldrig en del av komfortpoängen.

Mest folkSun Valley Arts & Crafts Festival, Summer break i United States, skollov i 2 av marknaderna som fyller platsen(uppskattat)

JFMAMJJASOND

Mest folkMycket folkMellansäsongLugnt

Bästa månaderna för vädret i Sun Valley

Rankat efter resmålets egen klimatkomfortpoäng över året — något helt annat än hur trångt det blir (se Trängsel ovan).

Tuffast väderVädret i Sun Valley toppar december–februari.

augusti sammanfaller med Wildfire smoke season.

JFMAMJJASOND

Bäst väderHyfsat väderTuffast väder

På gång i Sun Valley i augusti

Återkommande säsongsevenemang, naturskådespel, stängningar och helger — utvalda och källhänvisade.

  • Natur

    Wildflowers on the trails

    1 jul – 10 aug · vanligtvisVildblommor & blomning

    Balsamroot and lupine on the Adams Gulch and Pioneer Cabin trails through July, later the higher you start. The valley trail system runs from the town centre, which is unusual.

  • Risk

    Wildfire smoke season

    20 jul – 15 sep · vanligtvis

    Smoke 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. Källa ↗

  • Säsong

    Sun Valley Music Festival

    25 jul – 20 aug · vanligtvis

    Three weeks of orchestral concerts in a pavilion at the resort in high summer, free to attend, with most of the audience on the lawn outside. Musicians fly in from orchestras across the country. Källa ↗

  • Festival

    Sun Valley Arts & Crafts Festival

    1–31 aug · vanligtvisKulturfestivalTrångt

    A juried outdoor fine-arts show fills Ketchum's Atkinson Park for a long August weekend: painting, sculpture, ceramics, photography and jewellery booths, running for decades. Källa ↗

Vad som är på gång i världen i augusti →

I närheten, och något är på gång

Inom 300 km från Sun Valley — en dagstur eller ett kort hopp — med något på gång den här månaden. Aldrig en del av komfortpoängen.

Var ligger Sun Valley?

Laddar kartan…

Sun Valley i augusti — vanliga frågor

Är augusti en bra tid att besöka Sun Valley?
Sun Valley i augusti: varmt, torrt, med ren luft — en av de svagaste månaderna att besöka. Månaden ligger på plats 11 av 12 för Sun Valley enligt SeasonMaps komfortpoäng (14/100).
Hur är vädret i Sun Valley i augusti?
I augusti har Sun Valley i snitt 25.9 °C som dagshögsta och 7.6 °C som nattlägsta, med ungefär 23.3 mm regn fördelat på cirka 3.1 regndagar.
Hur är luftkvaliteten i Sun Valley i augusti?
Sun Valley har ett genomsnittligt amerikanskt luftkvalitetsindex (AQI) på ungefär 46 i augusti.

Inom 300 km: Grand Teton National Parks Grand Teton Music Festival, runt 25 jun – 20 aug och Big Skys Yellowstone roads open, runt 15 apr – 5 nov.

Väder i Sun Valley i augusti: 26 °C, 3 regndagar, 12 h sol | SeasonMap