Juneau Weather in September
September in Juneau brings low temperatures, with highs of 11°C (52°F) and nights dropping to 5°C (41°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Juneau in September
As part of the rainy season, Juneau sees around 19 days of rain in September, with an average of 368 mm (14 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Juneau in September
September in Juneau brings low temperatures, with highs of 11°C (52°F) and nights around 5°C (41°F). The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Juneau in September
The area enjoys a moderate level of sunlight, with around 112 hours. It's a good balance between sunny and rainy days.
Wind Speed in Juneau in September
Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.If you're interested in exploring other destinations, our weather planner can help you discover additional travel options worldwide.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Juneau's climate page.
Juneau Temperature in September
Min Temperature
5°C (41°F)
Max Temperature
11°C (52°F)
Chance of Rain
62%
Precipitation
368 mm (14 in)
Rainy days
19 days
Humidity
87%
Windspeed
4 m/s (8 knots)
Sunshine
112 hours
Percentage Sunshine
29%
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Juneau in September
The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Juneau in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Juneau's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Juneau climate overview or explore weather in the United States of America.
