AnchorageUnited States · North America · September

September climate

MountainNatureHiking

September in Anchorage

United States · North America

Cool days and some sun.

Some tradeoffs

Early to mid

Daytime high

56°F

Lows around 46°F

Rain

Rain most days

Sun

5.5 h/day

Air feel

Very dry

When to visit

Month-by-month fit

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Temperature

Cool by day, cold at night.

56°Ftypical September high

Typical range

Precipitation

It rains on most days. About 19 wet days, the highest monthly average.

63%wet-day frequency

Precip amountWet-day chanceSnowfall

Sunshine

Cloudier spells limit sunshine.

5.3 hSeptember sunshine

Heat & humidity by month

Very drySeptember Heat feel

Easy airWarm air

Hourly temperature pattern

In September, afternoons feel about 52° and nights feel near 43°.

FrigidFreezingVery coldColdCoolNight hours

Clear sky

Mostly cloudy skies this month.

26%September Clear sky

Clear skyCloud

Wind pattern

Calm winds are typical in September.

4 mphSeptember Calm

More detailIncludes daypart comfort

Typical September day

September late afternoons are around 55°F, easing to about 53°F in early evening.

Avg temp Typical range

Morning48°F

Rain36%

Cloud75%

Humid airLow

Sun intensityMinimal

Best window

Midday53°F

Rain39%

Cloud73%

Humid airLow

Sun intensityLow

Late afternoon55°F

Rain43%

Cloud75%

Humid airLow

Sun intensityLow

Early evening53°F

Rain40%

Cloud73%

Humid airLow

Sun intensityMinimal

Data table

View month-by-month numbers

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	24	15	3.0	13	2.7	80
Feb	29	19	2.7	13	4.3	79
Mar	34	21	1.9	11	6.3	73
Apr	44	31	1.8	10	7.8	72
May	55	40	1.7	10	9.3	72
Jun	63	50	2.5	14	9.2	75
Jul	66	55	3.9	16	8.1	80
Aug	64	54	5.3	18	6.6	82
Sep	56	46	5.6	19	5.3	82
Oct	44	34	4.5	16	3.8	82
Nov	31	22	3.3	13	2.7	81
Dec	25	17	3.8	15	1.7	81

Similar climates

Want a side-by-side climate view? Compare Anchorage with Glacier National Park.

Climate data notePlanning guidance, not a forecast

Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.

Sunshine: source type is not yet identified at metric level.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jun 1, 2026

Data & methodology

Month

High°F

Low°F

Rainin

Wet days

Sunh

Humidity%

Jan

3.0

2.7

Feb

2.7

4.3

Mar

1.9

6.3

Apr

1.8

7.8

May

1.7

9.3

Jun

2.5

9.2

Jul

3.9

8.1

Aug

5.3

6.6

Sep

5.6

5.3

Oct

4.5

3.8

Nov

3.3

2.7

Dec

3.8

1.7

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	24	15	3.0	13	2.7	80
Feb	29	19	2.7	13	4.3	79
Mar	34	21	1.9	11	6.3	73
Apr	44	31	1.8	10	7.8	72
May	55	40	1.7	10	9.3	72
Jun	63	50	2.5	14	9.2	75
Jul	66	55	3.9	16	8.1	80
Aug	64	54	5.3	18	6.6	82
Sep	56	46	5.6	19	5.3	82
Oct	44	34	4.5	16	3.8	82
Nov	31	22	3.3	13	2.7	81
Dec	25	17	3.8	15	1.7	81

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	24	15	3.0	13	2.7	80
Feb	29	19	2.7	13	4.3	79
Mar	34	21	1.9	11	6.3	73
Apr	44	31	1.8	10	7.8	72
May	55	40	1.7	10	9.3	72
Jun	63	50	2.5	14	9.2	75
Jul	66	55	3.9	16	8.1	80
Aug	64	54	5.3	18	6.6	82
Sep	56	46	5.6	19	5.3	82
Oct	44	34	4.5	16	3.8	82
Nov	31	22	3.3	13	2.7	81
Dec	25	17	3.8	15	1.7	81

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	24	15	3.0	13	2.7	80
Feb	29	19	2.7	13	4.3	79
Mar	34	21	1.9	11	6.3	73
Apr	44	31	1.8	10	7.8	72
May	55	40	1.7	10	9.3	72
Jun	63	50	2.5	14	9.2	75
Jul	66	55	3.9	16	8.1	80
Aug	64	54	5.3	18	6.6	82
Sep	56	46	5.6	19	5.3	82
Oct	44	34	4.5	16	3.8	82
Nov	31	22	3.3	13	2.7	81
Dec	25	17	3.8	15	1.7	81

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	24	15	3.0	13	2.7	80
Feb	29	19	2.7	13	4.3	79
Mar	34	21	1.9	11	6.3	73
Apr	44	31	1.8	10	7.8	72
May	55	40	1.7	10	9.3	72
Jun	63	50	2.5	14	9.2	75
Jul	66	55	3.9	16	8.1	80
Aug	64	54	5.3	18	6.6	82
Sep	56	46	5.6	19	5.3	82
Oct	44	34	4.5	16	3.8	82
Nov	31	22	3.3	13	2.7	81
Dec	25	17	3.8	15	1.7	81

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	24	15	3.0	13	2.7	80
Feb	29	19	2.7	13	4.3	79
Mar	34	21	1.9	11	6.3	73
Apr	44	31	1.8	10	7.8	72
May	55	40	1.7	10	9.3	72
Jun	63	50	2.5	14	9.2	75
Jul	66	55	3.9	16	8.1	80
Aug	64	54	5.3	18	6.6	82
Sep	56	46	5.6	19	5.3	82
Oct	44	34	4.5	16	3.8	82
Nov	31	22	3.3	13	2.7	81
Dec	25	17	3.8	15	1.7	81

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	24	15	3.0	13	2.7	80
Feb	29	19	2.7	13	4.3	79
Mar	34	21	1.9	11	6.3	73
Apr	44	31	1.8	10	7.8	72
May	55	40	1.7	10	9.3	72
Jun	63	50	2.5	14	9.2	75
Jul	66	55	3.9	16	8.1	80
Aug	64	54	5.3	18	6.6	82
Sep	56	46	5.6	19	5.3	82
Oct	44	34	4.5	16	3.8	82
Nov	31	22	3.3	13	2.7	81
Dec	25	17	3.8	15	1.7	81