Anchorage Weather in September

In Anchorage, September brings moderate daytime temperatures around 13°C (55°F), with nights cooling to 8°C (46°F). It is the wettest month of the year, so expect more rainfall than usual.

Rainfall in Anchorage in September

Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. Records from the past 30 years suggest around 14 days of rain, with 131 mm (5.2 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Anchorage in September

Expect highs of 13°C (55°F) in Anchorage in September, with nights dropping to around 8°C (46°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Anchorage in September

The city usually sees around 160 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Anchorage in September

Wind speeds average 2 m/s (4 knots) during September. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.

September in Anchorage has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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Check the conditions for any month of the year.

• January
• February
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• May
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• October
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• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Anchorage's climate page.

Anchorage Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 13°C (55°F)  

Chance of Rain 47%  

Precipitation 131 mm (5.2 in)  

Rainy days 14 days  

Humidity 76%  

Windspeed 2 m/s (4 knots)  

Sunshine 160 hours  

Percentage Sunshine 41%  

What to Wear in Anchorage in September

The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Anchorage in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Anchorage's climate page.

More climate data for Anchorage

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Anchorage climate overview or explore weather in the United States of America.