Anchorage in August
In August, Anchorage averages 18°C (64°F) during the day and 11°C (52°F) at night, with frequent rain — about 21 days of the month see precipitation (118 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Expect daily rain or showers, often in heavy bursts.
It's peak hurricane season in Anchorage during August. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How August compares to the rest of the year in Anchorage
August is one of the warmest months in Anchorage (3rd of 12) and one of the wettest months (1st of 12). Daytime temperature runs 11°C above the annual average (7°C). August runs 2°C cooler than July (20°C) and cools 5°C in September (13°C).
August sunrise & sunset in Anchorage
Times shown for Anchorage local time (America/Anchorage), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Anchorage — August
Golden-hour and blue-hour windows for the 15th of August, in Anchorage's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Anchorage in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (Shoulder) and Anchorage's popularity.
Crowds & pricing — August in Anchorage
Anchorage is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: Northern Hemisphere summer holidays peak hazard season (1 active)
Sun & mosquito risk — August in Anchorage
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Anchorage in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | -5°C / 23°F | -10°C / 14°F | 58 mm | 18 | — |
| February | -4°C / 25°F | -9°C / 15°F | 59 mm | 17 | — |
| March | 1°C / 33°F | -7°C / 19°F | 41 mm | 14 | — |
| April | 7°C / 45°F | -2°C / 29°F | 34 mm | 15 | — |
| May | 14°C / 57°F | 5°C / 41°F | 46 mm | 18 | — |
| June | 18°C / 65°F | 10°C / 50°F | 51 mm | 18 | — |
| July | 20°C / 67°F | 12°C / 54°F | 96 mm | 19 | — |
| August | 18°C / 64°F | 11°C / 52°F | 118 mm | 21 | — |
| September | 13°C / 55°F | 6°C / 44°F | 127 mm | 21 | — |
| October | 6°C / 42°F | 0°C / 33°F | 91 mm | 18 | — |
| November | -2°C / 28°F | -7°C / 20°F | 78 mm | 19 | — |
| December | -4°C / 24°F | -9°C / 15°F | 80 mm | 19 | — |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Anchorage in August →
Frequently asked questions
How hot is Anchorage in August?
In August, Anchorage averages a high of 18°C (64°F) and a low of 11°C (52°F) — generally mild and pleasant.
Does it rain a lot in Anchorage in August?
August is quite rainy in Anchorage, with about 21 rainy days on average.
Is August a good time to visit Anchorage?
August is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Anchorage in August?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full August packing list for Anchorage for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.