September 19 sees frequent showers in Juneau. Historical data shows a 68% chance of rain, so pack accordingly. Temperatures average 13°C. It's a quieter period for Juneau, ideal for those who prefer unhurried sightseeing.
View the full calendar
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 19
"Rainy & Overcast. Expect average highs of 13°C. 68% chance of rain."
What to Wear in Juneau in September
Based on historical data for September 19, Juneau typically experiences temperatures between 7.9°C and 13°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 68% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Juneau
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
13°C
Daytime Peak
Average Low
7.9°C
Nighttime Low
Feels Like
12.6°C
🌤️ Feels accurate
Rain Chance
68%
Avg 11.9mm if it rains
Cloud Cover
81%
Moderate rain
Pressure
1009.9 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 96% 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
🔴 57 min to burn
Type III-IV
🟡 86 min to burn
Type V-VI
🟢 143 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
10.7°C
Pleasant
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
05:37
☀️ Noon
11:52
🌇 Sunset
18:08
⏱️ Daylight
12h 30m
Wind Speed
10.6 km/h
Light breeze
Sunshine
4.6 hrs
Direct Sun (Cloud-free)
Humidity
86%
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 19 averages 13°C with a 68% precipitation probability. Wedding/Outdoor Event Score: 54/100."
— 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
September 13
14°C • 56% rain
Score
72
September 12
14.1°C • 58% rain
Score
71
September 14
13.8°C • 57% rain
Score
70
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 19) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Juneau Worth Visiting on September 19?
Planning a trip to Juneau on September 19? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 13°C with a 68% historical precipitation risk.
✈️ Travel Logistics: Approximately 15 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest September 19 recorded in the last 30 years saw temperatures hit 15.6°C in 2018, while the coldest dropped to 3.9°C in 2018.