Alaska (Ketchikan)
August
Weather in Alaska for August 2027
Your guide to Alaska weather in August - trends and predictions
In general, the average temperature in Alaska at the beginning of August is 17 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 15.5 °C by the end of August.
The climate of Alaska in August is notably wet, with an average of 12 rainy days, and a total of 252.1 mm of precipitation.
Is August a good time to visit Alaska? check out the best time to travel to Alaska page.
✨ Is August a good time to visit Alaska? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
19
Dry days
12
Rainy days
0
Snow days
17°/12°
Temperatures
11 km/h
Avg max wind
83 %
Avg humidity
Alaska Weather August
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What’s the Weather Like in Alaska This August?
Discover the average temperatures and weather trends across Alaska’s cities this August.
Temperatures trend during August in Alaska
See the weather trend as well as the moving average line
August weather in Alaska day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Light rain | 15° /11° | 5.8 mm | 3 | |
| Aug. 2 |  Sunny | 17° /11° | 0.1 mm | 4 | |
| Aug. 3 |  Moderate rain | 16° /10° | 11.7 mm | 5 | |
| Aug. 4 | Light rain | 18° /11° | 3.7 mm | 6 | |
| Aug. 5 |  Heavy rain | 17° /12° | 31.4 mm | 5 | |
| Aug. 6 | Sunny | 18° /12° | 0 mm | 6 | |
| Aug. 7 | Sunny | 17° /12° | 0 mm | 4 | |
| Aug. 8 | Moderate rain | 17° /12° | 10.3 mm | 5 | |
| Aug. 9 | Moderate rain | 18° /12° | 16.6 mm | 5 | |
| Aug. 10 |  Overcast | 16° /13° | 0.7 mm | 4 | |
| Aug. 11 | Moderate rain | 17° /12° | 14.6 mm | 4 | |
| Aug. 12 |  Patchy rain possible | 18° /13° | 0.1 mm | 5 | |
| Aug. 13 | Patchy rain possible | 18° /12° | 0.1 mm | 4 | |
| Aug. 14 | Patchy rain possible | 18° /12° | 1 mm | 5 | |
| Aug. 15 | Light rain | 18° /12° | 4.3 mm | 5 | |
| Aug. 16 | Heavy rain | 17° /12° | 25.9 mm | 4 | |
| Aug. 17 | Light rain | 16° /12° | 4.2 mm | 3 | |
| Aug. 18 | Sunny | 18° /12° | 0.1 mm | 5 | |
| Aug. 19 | Heavy rain | 15° /12° | 26.8 mm | 4 | |
| Aug. 20 | Light rain shower | 16° /11° | 2.2 mm | 4 | |
| Aug. 21 | Sunny | 18° /11° | 0 mm | 4 | |
| Aug. 22 | Patchy rain possible | 18° /13° | 1.2 mm | 4 | |
| Aug. 23 | Moderate rain | 16° /12° | 12.8 mm | 3 | |
| Aug. 24 | Moderate rain | 16° /13° | 12.1 mm | 3 | |
| Aug. 25 | Heavy rain | 15° /12° | 30.7 mm | 2 | |
| Aug. 26 | Light rain | 17° /11° | 2.7 mm | 3 | |
| Aug. 27 |  Partly cloudy | 16° /11° | 0.5 mm | 4 | |
| Aug. 28 | Light rain | 17° /11° | 3.2 mm | 4 | |
| Aug. 29 | Light rain | 16° /11° | 8.9 mm | 3 | |
| Aug. 30 | Moderate rain | 14° /11° | 11.3 mm | 3 | |
| Aug. 31 | Light rain | 14° /12° | 8.9 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Alaska in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Alaska forecast closer to your planned date for the most up-to-date weather information.
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Alaska in August - FAQ
What are the expected maximum and minimum temperatures in Alaska during August?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Alaska during August?
Significant rainfall exceeding 252.1 mm is expected in Alaska during August, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Alaska during August?
The average wind speed in Alaska during August is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Alaska
Explore the daily rainfall trends and prepare for Alaskas August weather 💧
Typically, Alaska has 12 rainy days in August with a total of 252.1 mm of rainfall.
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AnchorageDenali National ParkFairbanksGlacier Bay National Park and PreserveJuneauKetchikanSewardSitkaSkagwayWhittier
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