30YearWeather
Juneau, August 11
Juneau street view during August
Historical Weather Analysis

Juneau Weather on August 11 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

rain

17.6°C

High

12.2°C

Low

54%

Rain

🌤️ Feels like 17.6°C

rain
IT'S A GAMBLE
Peak Season

August 11 sees frequent showers in Juneau. Historical data shows a 54% chance of rain, so pack accordingly. Temperatures average 18°C. Expect a bustling atmosphere in Juneau right now—this is when the city truly comes alive with visitors.

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Juneau Weather Forecast for August 11

"Rainy & Overcast. Expect average highs of 17.6°C. 54% chance of rain."

What to Wear in Juneau in August

Based on historical data for August 11, Juneau typically experiences temperatures between 12.2°C and 17.6°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 54% chance of rain, keeping a raincoat or umbrella handy is a smart move.

Complete Packing Guide

Weekly breakdown & essential items for Juneau

View Guide

Smart Suitcase

  • Light Jacket
  • Long Pants
  • Umbrella

Average High

extreme-hot

17.6°C

Daytime Peak

Average Low

extreme-cold

12.2°C

Nighttime Low

Feels Like

partly-cloudy-day

17.6°C

🌤️ Feels accurate

Rain Chance

rain

54%

Avg 7.6mm if it rains

Cloud Cover

cloudy

75%

Moderate rain

Pressure

pressure

1016.5 hPa

Medium volatility

Juneau Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

93%Highly Predictable

Based on 10 years of data

Temperature
±2.6°CModerate
Precipitation
27-81%Moderate

🎯 This date historically delivers consistent weather 93% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

2.2Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

Type I-II

🔴 36 min to burn

Type III-IV

🟡 54 min to burn

Type V-VI

🟢 90 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

74Good
TemperatureMild
HumidityMuggy
WindLight Breeze

Dew Point

15.2°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

High

100/100 pressure index

Health Advisory

Healthy

Routine only • View Details →

Landing Slots

~58

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Juneau

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

04:12

☀️ Noon

12:04

🌇 Sunset

19:56

⏱️ Daylight

15h 43m

Golden Hour
Morning04:12 - 05:10
18:58 - 19:56Evening

Wind Speed

wind

9 km/h

Light breeze

Sunshine

clear-day

7.3 hrs

Direct Sun (Cloud-free)

Humidity

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

57/100

Tourist Crowds

🔴 Very Busy

100/100

Price Level

💰💰💰 Expensive

100/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1016.5 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
38AQI
Good
PM2.5 Concentration0.3 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):3
In Aug (30y):1
Last in Aug:2025-08-10
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Juneau on August 11 averages 17.6°C with a 54% precipitation probability. Wedding/Outdoor Event Score: 75/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Juneau Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2019
22.7°C
Coldest
2020
9.7°C
Rainiest
2025
45.3mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

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📍 Is Juneau Worth Visiting on August 11?

Planning a trip to Juneau on August 11? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 17.6°C with a 54% historical precipitation risk.

✈️ Travel Logistics: Approximately 58 landing slots available daily during this period, indicating manageable crowd levels.

📊 Historical Extremes: The hottest August 11 recorded in the last 30 years saw temperatures hit 22.7°C in 2019, while the coldest dropped to 9.7°C in 2020.

Juneau Weather FAQ