Cuaca Juneau, Alaska di September
September di Juneau, Alaska: sejuk, basah kuyup, dengan udara bersih — untung-untungan, dengan 21 hari hujan.
Diperbarui September 2026 · normal iklim dari reanalisis ERA5
#6 dari 12 bulan di Juneau, Alaska · #1153 dari 1413 destinasi untuk dikunjungi di September · kenyamanan 59/100 (tier D)
- Siang
- 15°C
- Malam
- 7°C
- Hari hujan
- 21
- Matahari
- 5.7 h
- Kelembapan
- 85%
- Jam siang
- 13 h

Catatan pelancong tentang Juneau, Alaska di September
Bulan lain di Juneau, Alaska
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.
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.
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.
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Normal iklim Juneau, Alaska — September
Rata-rata bulanan dari reanalisis ERA5. AQI adalah rata-rata Indeks Kualitas Udara AS untuk bulan itu.
Keramaian di Juneau, Alaska 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 keramaianCruise season, Summer break di Amerika Serikat(perkiraan)
Puncak keramaianRamaiMusim peralihanSepi
Bulan terbaik untuk cuaca Juneau, Alaska
Diurutkan berdasarkan skor kenyamanan iklim destinasi ini sepanjang tahun — hal yang berbeda dari seberapa ramai tempatnya (lihat Keramaian di atas).
Cuaca lumayanCuaca Juneau, Alaska memuncak Juni–Agustus.
Cuaca terbaikCuaca lumayanCuaca tersulit
Agenda di Juneau, Alaska pada September
Acara musiman berulang, fenomena alam, penutupan, dan hari libur — dikurasi dan bersumber jelas.
- Musim
Cruise season
25 Apr – 30 Sep · biasanyaRamaiShips 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. Sumber ↗
- Alam
Humpback whale season
1 Mei – 20 Sep · biasanyaHumpbacks 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.
- Alam
Salmon run and bears
20 Jul – 15 Sep · biasanyaMusim satwa liarSockeye 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.
- Musim
Wet season
Musim hujan (monsun)Risiko21 rainy days and about 321 mm in the month — the real kind of rainy season, not afternoon showers.
dari normal iklim
Di mana Juneau, Alaska?
Juneau, Alaska di September — FAQ
- Apakah September waktu yang tepat untuk mengunjungi Juneau, Alaska?
- September di Juneau, Alaska: sejuk, basah kuyup, dengan udara bersih — untung-untungan, dengan 21 hari hujan. Bulan ini ada di peringkat #6 dari 12 bulan untuk Juneau, Alaska menurut skor kenyamanan SeasonMap (59/100).
- Bagaimana cuaca di Juneau, Alaska pada September?
- Pada September, Juneau, Alaska rata-rata mencapai suhu tertinggi harian 15.1°C dan terendah 7°C, dengan sekitar 321.3 mm hujan sepanjang kurang lebih 20.8 hari hujan.
- Bagaimana kualitas udara di Juneau, Alaska pada September?
- Juneau, Alaska punya rata-rata Indeks Kualitas Udara AS sekitar 27 pada September.