Anchorage, Alaska Weather in September
United States · September climate averages and travel tips
Avg high12°C (53°F)
Avg low7°C (44°F)
Rainfall119 mm (4.7 in)
RatingPoor 2.9/10
In September, Anchorage has average highs of 12°C (53°F) and lows of 7°C (44°F). September is autumn (fall) in United States. The month is moderately rainy, with about 119 mm (4.7 in) of rain spread over 18 days, making it the second wettest month of the year. You get roughly 12.5 hours of daylight and frequently cloudy skies.
Is September a good time to visit Anchorage?
September is not the best time to visit Anchorage (2.9/10) mainly because of the rain. The weather is much better in June and July.
September weather at a glance
| Average high | 12°C (53°F) |
|---|---|
| Average low | 7°C (44°F) |
| Daily mean | 9°C (49°F) |
| Rainfall | 119 mm (4.7 in) |
| Rainy days (1 mm+) | 18 |
| Humidity | 84% |
| Cloud cover | 80% |
| Daylight | 12.5 hours |
| Est. sunshine | 2.7 hours/day |
| Wind | 6 km/h |
| vs August | 4°C cooler than August, with similar rainfall. |
What to pack for Anchorage in September
- a warm jacket and layers
- an umbrella or rain jacket
Anchorage weather in other months
Jan-5°C / -9°C54 mmPoorFeb-3°C / -9°C51 mmPoorMar-1°C / -7°C40 mmPoorApr4°C / -2°C35 mmPoorMay11°C / 4°C49 mmFairJun15°C / 9°C59 mmGoodJul17°C / 11°C89 mmFairAug16°C / 10°C122 mmPoorSep12°C / 7°C119 mmPoorOct5°C / 1°C80 mmPoorNov-3°C / -7°C70 mmPoorDec-4°C / -8°C66 mmPoor
← AugustBest time to visit AnchorageOctober →
Better weather in September nearby
- San Francisco, California24°C · 4 mm · Excellent
- Seattle, Washington21°C · 62 mm · Excellent
- Denver, Colorado29°C · 35 mm · Excellent
- Calgary20°C · 49 mm · Excellent
- Edmonton19°C · 41 mm · Excellent
- Toronto22°C · 62 mm · Excellent
Where else is good in September? See where to go in September.