Historical data suggests significant rain risk (70%) on September 27. If you seek sun, consider a different date. Bring rain gear! Lower tourist interest in Juneau right now translates to better deals and a more local feel.
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Essential Travel Info for Juneau
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Juneau Weather Forecast for September 27
"Rainy & Overcast. Expect average highs of 11.5°C. 70% chance of rain."
What to Wear in Juneau in September
Based on historical data for September 27, Juneau typically experiences temperatures between 7°C and 11.5°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 70% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Juneau
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
11.5°C
Daytime Peak
Average Low
7°C
Nighttime Low
Feels Like
10.7°C
🌤️ Feels accurate
Rain Chance
70%
Avg 10.7mm if it rains
Cloud Cover
85%
Moderate rain
Pressure
1009.5 hPa
High volatility
Juneau Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 95% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 62 min to burn
Type III-IV
🟡 93 min to burn
Type V-VI
🟢 155 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
9.6°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
Quiet
26/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~15
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Juneau
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:54
☀️ Noon
11:49
🌇 Sunset
17:45
⏱️ Daylight
11h 50m
Wind Speed
10.8 km/h
Light breeze
Sunshine
4.3 hrs
Direct Sun (Cloud-free)
Humidity
88%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Juneau
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Juneau
Travel Comfort Index
Real-time tourism conditions
Weather Quality
🌧️ Variable
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Low pressure & humidity may aggravate joints.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Juneau on September 27 averages 11.5°C with a 70% precipitation probability. Wedding/Outdoor Event Score: 45/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Juneau Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 2
10.7°C • 53% rain
Score
56
October 1
10.8°C • 56% rain
Score
54
September 30
11°C • 59% rain
Score
53
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 27) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Juneau Worth Visiting on September 27?
Planning a trip to Juneau on September 27? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 11.5°C with a 70% historical precipitation risk.
✈️ Travel Logistics: Approximately 15 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest September 27 recorded in the last 30 years saw temperatures hit 15.4°C in 2018, while the coldest dropped to 4.6°C in 2019.