Väder i Juneau i augusti
Juneau i augusti: skönt, genomblött, med ren luft — helt okej om du står ut med 18 regndagar.
Uppdaterad september 2026 · klimatnormaler från ERA5-reanalysen
Plats 3 av 12 månader i Juneau · plats 870 av 1413 resmål att besöka i augusti · komfort 73/100 (nivå B)
- Dagar
- 19°C
- Nätter
- 11°C
- Regndagar
- 18
- Sol
- 8 h
- Luftfuktighet
- 85%
- Dagsljus
- 15 h

Resenärernas anteckningar om Juneau i augusti
Regulars answer the question about August rain by reframing it: this is temperate rainforest, measurable rain falls on 222 days of the year, and the right expectation is cloud and drizzle with a sunny day as a bonus. They put the month near 59F with roughly a three-in-four chance of rain on any day, and our row agrees emphatically at 265.1mm across 17.8 days under 19.2C. What the weather does not spoil is the reason to come: the whale trips from May to mid-September find humpbacks essentially every time, with about a one-in-five chance of orcas. The cruise season runs to mid-September. Evenings darken by half past nine. The record: humidity 85 percent, 8 hours of sun and AQI 28.
Andra månader i Juneau
Regulars are specific that early in this month can bring a genuine winter relapse, fresh snow falling all the way down to sea level and putting tours like Glacier Bay or helicopter flightseeing on hold, a real contrast to how settled May becomes just weeks later. Our row backs that cold, still-wintry read, 9.6C over 0.4C nights feeling -2C, with a heavy 163.4mm of rain across 17.6 days and a real 17.8cm of snow. Regulars are consistent that layered clothing plus proper rain gear, boots, gloves and a hat cover most of what this month can throw at a visitor, since conditions can swing from a mild, clear day to a genuine snow event within the same week. The record: humidity 80 percent, 7.7 hours of sun, a 9.8 kph wind and AQI 40.
Regulars are consistent on one rule regardless of the forecast: always bring proper rain gear to this part of Alaska, since even a visitor who caught a genuinely beautiful stretch one year is quick to add that the same week the year before was a washout. Our row backs the wet reality, 175.7mm of rain across a striking 15.4 days, alongside cool temperatures, 14.5C over 5.1C nights feeling 2C, and a trace of late snow, 2.6cm. Regulars pushing toward late May specifically say it can bring some of the season's best weather, so the back half of the month is worth favouring if the dates are flexible. Layering is the standard advice on top of the rain gear, since the temperature swings enough within a day to matter. The record: humidity 82 percent, 8.9 hours of sun and AQI 37.
Juneau measures rain on 222 days of an average year, and the forum's most useful correction is about the kind: this is drizzly English rain rather than a Florida downpour, so it can rain any day without ever being an all-day soaking. Our row gives 164.2mm across 16.7 precipitation days in June. Early June can be genuinely cold and windy, with port temperatures ranging from the high 60s Fahrenheit down to the 40s or 50s, which our row averages at 18.5C over 9.6C. Excursions rarely cancel for rain - the outfitters hand out gear - and the packing list is layers, rain gear, and a hat and gloves for any glacier day. The record: humidity 81 percent, 9.6 hours of sun and 18.1 hours of daylight.
Juneau forum threads describe February as genuinely variable and often described by posters as pretty miserable - rain, snow, wet snow, icy wind or occasionally cold and clear, with no single dominant pattern to count on. Posters were direct that the month rewards flexibility: warm, waterproof layering and a willingness to adjust plans day to day matter more than any specific forecast. A practical note repeated across threads: Alaska's state Legislature convenes in Juneau in February, pushing hotel prices up during what would otherwise be a quiet season. For those hoping to catch the Northern Lights, posters were candid that Juneau's frequent cloud cover makes it an unreliable spot for aurora viewing, though not impossible on a clear night. Snowshoeing toward Mendenhall Glacier or Eagle Beach was recommended as a solid way to make the most of the conditions.
Lägg till din egen anteckning från Juneaus kort på kartan.
Klimatnormaler för Juneau — augusti
Månadsmedelvärden från ERA5-reanalysen. AQI är månadens medelvärde för det amerikanska luftkvalitetsindexet.
Trängsel i Juneau 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 folkCruise season, Summer break i United States, skollov i 2 av marknaderna som fyller platsen(uppskattat)
Mest folkMycket folkMellansäsongLugnt
Bästa månaderna för vädret i Juneau
Rankat efter resmålets egen klimatkomfortpoäng över året — något helt annat än hur trångt det blir (se Trängsel ovan).
Bäst väderVädret i Juneau toppar juni–augusti.
augusti innehåller Humpback whale season.
Bäst väderHyfsat väderTuffast väder
På gång i Juneau i augusti
Återkommande säsongsevenemang, naturskådespel, stängningar och helger — utvalda och källhänvisade.
- Säsong
Cruise season
25 apr – 30 sep · vanligtvisTrångtShips dock nearly every day from late April to the end of September under a daily passenger cap agreed with the town. Downtown is theirs until late afternoon; the trails and the ferry terminal never are. Källa ↗
- Natur
Humpback whale season
1 maj – 20 sep · vanligtvisHumpbacks feed in Stephens Passage and Auke Bay from May until September, and the bubble-net groups work the same water year after year. Boats out of Auke Bay find them most days in midsummer.
- Natur
Salmon run and bears
20 jul – 15 sep · vanligtvisDjurlivssäsongSockeye run up Steep Creek beside the Mendenhall visitor centre from late July, coho behind them into autumn, and the black bears fish it from below a public boardwalk.
Var ligger Juneau?
Juneau i augusti — vanliga frågor
- Är augusti en bra tid att besöka Juneau?
- Juneau i augusti: skönt, genomblött, med ren luft — helt okej om du står ut med 18 regndagar. Månaden ligger på plats 3 av 12 för Juneau enligt SeasonMaps komfortpoäng (73/100).
- Hur är vädret i Juneau i augusti?
- I augusti har Juneau i snitt 19.2 °C som dagshögsta och 10.7 °C som nattlägsta, med ungefär 265.1 mm regn fördelat på cirka 17.8 regndagar.
- Hur är luftkvaliteten i Juneau i augusti?
- Juneau har ett genomsnittligt amerikanskt luftkvalitetsindex (AQI) på ungefär 28 i augusti.