30YearWeather
Juneau in August
Juneau weather in August - United States
🌧️Wet Season

Juneau Weather in August

Plan your August trip to Juneau, United States. Based on 30 years of NASA data, expect temperatures of 17°C (high) to 12°C (low), with 53% rain probability and 8 hours of daily sunshine. Pack rain gear for around 31 rainy days.

Avg High
17°C

Hottest around day 5

Avg Low
12°C

Coolest around day 31

Rainy Days
31days

53% avg rain chance

Sunshine
8hrs/day

Summer season

Juneau August Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for Juneau

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Low Traffic
23/ 100
Traffic Index

Quieter airport

Peak Daily Arrivals

0

slots per day

Peak

Aug

Low

Oct

Monthly Traffic Distribution

37
Jan
22
Feb
23
Mar
25
Apr
23
May
12
Jun
12
Jul
58
Aug
15
Sep
5
Oct
11
Nov
32
Dec
Traffic Level
Low Season

Key Connections

Seattle Tacoma (SEA)
Haines (HNS)
Anchorage Ted Stevens (ANC)
Hoonah (HNH)
Sitka Rocky Gutierrez (SIT)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is August a Good Time to Visit Juneau?

👌Worthwhile timing with some trade-offs
Short Answer

Juneau during August means embracing the rain (53%, 7mm typical). Some activities may be affected, but the lush landscapes and fewer tourists can be rewarding.

Decision Factors

Very high humidity

86% average humidity

Frequent rainfall expected

53% chance of rain - pack waterproofs

Peak tourist season

100% of annual peak - expect crowds and peak prices

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 🏖️
    Beach lovers

    Sea temperature only undefined°C - too cold for comfortable swimming

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    86% humidity creates difficult conditions

  • 🥾
    Outdoor enthusiasts

    53% rain probability disrupts outdoor activities

930 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Juneau in August averages 17°C with 53% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Juneau in August

What are the temperatures in Juneau in August?

Daytime highs average 17°C, nights drop to 12°C. Temperatures remain fairly consistent.

How many rainy days in Juneau in August?

Expect around 31 days with measurable rainfall. Definitely pack rain gear.

What to wear in Juneau in August?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is August peak season in Juneau?

This is off-peak season. Expect lower prices and fewer crowds.