Anchorage weather in August

In August, Anchorage sees average daytime highs of 61°F and overnight lows near 53°F, with 4.2 in of rain across 14.8 wet days and about 15.5 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 62°F in the first days to 59°F by the end. The sky is clear or mostly clear about 18% of the time in August, and the air most often feels dry.

Daylight stretches from about 16 h 54 min at the start of August to 14 h 06 min by month's end. Set against the rest of the year, August is Anchorage's 10th-clearest and 10th-windiest month. For the whole year in context, see Anchorage's year-round climate.

Daytime high: 61°; 2nd warmest
Overnight low: 53°; 11th coldest
Rainfall: 4.2 in; 14.8 wet days
Daylight: 15 h 36 min; 5:17 AM – 8:50 PM
Cloud cover: 71%; 10th clearest
Wind: 4 mph; 10th windiest
Solar energy: 3.54 kWh/m²
Travel score: 4.4; out of 10

Anchorage is consolidated city-borough and largest city in the U.S. state of Alaska.

Density: 57/km²; people per km²
Founded: 1914

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← July Anchorage year-round climate September →Best places to visit in August

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 62°F in the first days to 59°F by the end.

A typical August day in Anchorage reaches about 61°F in the afternoon and slips back to 53°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 56°F and 66°F. Set against its neighbours, August runs about 1°F cooler than July and about 7°F warmer than September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°F)	62	62	62	62	62	62	62	62	62	62	62	62	62	61	61	61	61	61	61	60	60	60	60	60	59	59	59	59	59	58	58
Avg low (°F)	55	55	54	54	54	54	54	54	54	54	54	54	54	54	53	53	53	53	53	53	52	52	52	52	51	51	51	51	51	50	50

	Avg high (°F)	Avg low (°F)
1	62	55
2	62	55
3	62	54
4	62	54
5	62	54
6	62	54
7	62	54
8	62	54
9	62	54
10	62	54
11	62	54
12	62	54
13	62	54
14	61	54
15	61	53
16	61	53
17	61	53
18	61	53
19	61	53
20	60	53
21	60	52
22	60	52
23	60	52
24	60	52
25	59	51
26	59	51
27	59	51
28	59	51
29	59	51
30	58	50
31	58	50

How August really feels in Anchorage

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Anchorage weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	21° / 14°	2.0	10.4	10.7	6	0.0
Feb	26° / 18°	1.9	9.6	9.4	8.5	0.0
Mar	32° / 21°	1.5	8.5	8.5	11.3	0.0
Apr	42° / 30°	1.2	7.3	4	14.3	0.5
May	51° / 39°	1.2	7.1	0.6	17	2.7
Jun	59° / 49°	1.6	9	0	18.8	4.5
Jul	62° / 54°	2.9	12.5	0	18.1	4.9
Aug	61° / 53°	4.2	14.8	0	15.5	4.4
Sep	54° / 46°	4.6	15.3	0.4	12.6	2.8
Oct	41° / 33°	3.5	13.2	4.1	9.6	0.4
Nov	29° / 22°	2.6	11.7	9.3	6.9	0.0
Dec	23° / 16°	2.9	12.8	13	5.2	0.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 69%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	28	29	29	29	29	30	30	30	30	31	31	31	30	30	31	31	30	30	30	31	31	31	32	32	31	32	33	33	33	33	33
Cloudier (%)	72	71	71	71	71	70	70	70	70	69	69	69	70	70	69	69	70	70	70	69	69	69	68	68	69	68	67	67	67	67	67

	Clearer (%)	Cloudier (%)
1	28	72
2	29	71
3	29	71
4	29	71
5	29	71
6	30	70
7	30	70
8	30	70
9	30	70
10	31	69
11	31	69
12	31	69
13	30	70
14	30	70
15	31	69
16	31	69
17	30	70
18	30	70
19	30	70
20	31	69
21	31	69
22	31	69
23	32	68
24	32	68
25	31	69
26	32	68
27	33	67
28	33	67
29	33	67
30	33	67
31	33	67

Chance of precipitation in August

Any precipitation

Anchorage gets around 4.2 in of rain over 14.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 48% and peaks near 50% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	45	45	45	45	45	45	46	46	46	47	47	47	48	48	49	49	50	50	50	50	50	50	50	49	49	49	49	49	49	48	48

	Rain chance (%)
1	45
2	45
3	45
4	45
5	45
6	45
7	46
8	46
9	46
10	47
11	47
12	47
13	48
14	48
15	49
16	49
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	49
25	49
26	49
27	49
28	49
29	49
30	48
31	48

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	83	83	83	83	83	83	84	84	85	86	87	88	88	89	90	91	92	93	94	94	95	96	97	97	98	98	98	99	99	99	99
Comfortable (%)	17	17	17	17	17	17	16	16	15	14	13	12	12	11	10	9	8	7	6	6	5	4	3	3	2	2	2	1	1	1	1

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	83	17
5	83	17
6	83	17
7	84	16
8	84	16
9	85	15
10	86	14
11	87	13
12	88	12
13	88	12
14	89	11
15	90	10
16	91	9
17	92	8
18	93	7
19	94	6
20	94	6
21	95	5
22	96	4
23	97	3
24	97	3
25	98	2
26	98	2
27	98	2
28	99	1
29	99	1
30	99	1
31	99	1

Wind in August

Winds average 4 mph in August.

Across August, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (mph)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (mph)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm
31	4	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 54 min at the start of August to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 168 minutes over August. Sunrise moves from 4:38 AM to 5:56 AM, and sunset from 9:33 PM to 8:03 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	16.9	16.8	16.7	16.7	16.6	16.5	16.4	16.3	16.2	16.1	16.0	15.9	15.8	15.7	15.7	15.6	15.5	15.4	15.3	15.2	15.1	15.0	14.9	14.8	14.7	14.6	14.5	14.4	14.3	14.2	14.1
Sunrise (AM)	4:38	4:41	4:43	4:46	4:48	4:51	4:54	4:56	4:59	5:01	5:04	5:07	5:09	5:12	5:14	5:17	5:20	5:22	5:25	5:27	5:30	5:33	5:35	5:38	5:40	5:43	5:46	5:48	5:51	5:53	5:56
Sunset (PM)	9:33	9:30	9:28	9:25	9:22	9:19	9:17	9:14	9:11	9:08	9:05	9:02	8:59	8:56	8:53	8:50	8:47	8:44	8:41	8:38	8:35	8:32	8:29	8:26	8:23	8:19	8:16	8:13	8:10	8:07	8:03

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	16.9	4:38	9:33
2	16.8	4:41	9:30
3	16.7	4:43	9:28
4	16.7	4:46	9:25
5	16.6	4:48	9:22
6	16.5	4:51	9:19
7	16.4	4:54	9:17
8	16.3	4:56	9:14
9	16.2	4:59	9:11
10	16.1	5:01	9:08
11	16.0	5:04	9:05
12	15.9	5:07	9:02
13	15.8	5:09	8:59
14	15.7	5:12	8:56
15	15.7	5:14	8:53
16	15.6	5:17	8:50
17	15.5	5:20	8:47
18	15.4	5:22	8:44
19	15.3	5:25	8:41
20	15.2	5:27	8:38
21	15.1	5:30	8:35
22	15.0	5:33	8:32
23	14.9	5:35	8:29
24	14.8	5:38	8:26
25	14.7	5:40	8:23
26	14.6	5:43	8:19
27	14.5	5:46	8:16
28	14.4	5:48	8:13
29	14.3	5:51	8:10
30	14.2	5:53	8:07
31	14.1	5:56	8:03

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.54 kWh/m².

For context, solar energy here swings from a low near 0.16 kWh/m² to a high of 5.49 kWh/m² in June across the year — August's 3.54 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.0	4.0	4.0	3.9	3.9	3.9	3.9	3.8	3.8	3.8	3.7	3.7	3.6	3.6	3.6	3.5	3.5	3.5	3.4	3.4	3.4	3.3	3.3	3.3	3.2	3.2	3.1	3.1	3.1	3.0	3.0
Level	Bright	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.0	Bright
2	4.0	Moderate
3	4.0	Moderate
4	3.9	Moderate
5	3.9	Moderate
6	3.9	Moderate
7	3.9	Moderate
8	3.8	Moderate
9	3.8	Moderate
10	3.8	Moderate
11	3.7	Moderate
12	3.7	Moderate
13	3.6	Moderate
14	3.6	Moderate
15	3.6	Moderate
16	3.5	Moderate
17	3.5	Moderate
18	3.5	Moderate
19	3.4	Moderate
20	3.4	Moderate
21	3.4	Moderate
22	3.3	Moderate
23	3.3	Moderate
24	3.3	Moderate
25	3.2	Moderate
26	3.2	Moderate
27	3.1	Moderate
28	3.1	Moderate
29	3.1	Moderate
30	3.0	Moderate
31	3.0	Moderate

Planning a trip in August

Hazard calendar for Anchorage

In seasonPeak

In August, Anchorage sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Anchorage's rainy season runs July–December, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is August a good time to visit Anchorage?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.4

Sightseeing

3rd-best month of the year

—

Beach & pool

never really warm enough

August is a reasonable time to visit Anchorage for sightseeing.

What to pack for Anchorage in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Anchorage sees daytime highs around 61°F and nights near 53°F. Pack rain gear. Worth having: a warm layer. About 15 days see rain.

rain geara warm layer

Sea temperature near Anchorage in August

The nearest coast averages about 57°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 10 mi away) is warmest in August at about 57°F and coldest in February near 31°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	31	31	31	32	36	48	55	57	54	47	40	32
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°F)	Comfort
Jan	31	Bracing
Feb	31	Bracing
Mar	31	Bracing
Apr	32	Bracing
May	36	Bracing
Jun	48	Bracing
Jul	55	Bracing
Aug	57	Bracing
Sep	54	Bracing
Oct	47	Bracing
Nov	40	Bracing
Dec	32	Bracing

UV index in Anchorage in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Anchorage peaks around June 23 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	1	3	4	5	5	4	2	1	0	0
Level	Low	Low	Low	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	1	Low
Apr	3	Moderate
May	4	Moderate
Jun	5	Moderate
Jul	5	Moderate
Aug	4	Moderate
Sep	2	Moderate
Oct	1	Low
Nov	0	Low
Dec	0	Low

Location & terrain

Where is Anchorage?

Anchorage sits at 61.2°N, 149.9°W, 102 ft above sea level, in United States. The nearest listed city is Eagle River, 13 mi away.

Topography around Anchorage

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Anchorage.

Within 2 miles, the terrain around Anchorage has only modest variations in elevation — a maximum elevation change of 194 ft around an average of 56 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,386 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,769 ft.

The land around Anchorage is covered by water (39%) and artificial surfaces (32%) within 2 miles, trees (39%) and water (35%) within 10 miles, and trees (42%) and grassland (23%) within 50 miles.

2 miles

194 ft

water 39%

10 miles

3,386 ft

trees 39%

50 miles

7,769 ft

trees 42%

treesgrasslandartificial surfacesbare terrainsnow and icewaterwetlandmoss and lichen

← July Anchorage year-round climate September →Best places to visit in August

August weather nearby: Eagle River 13 mi · Badger 258 mi · Fairbanks 259 mi · Dawson City 385 mi · Whitehorse 498 mi · Juneau 574 mi · Terrace 903 mi · Anadyr 1,039 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Anchorage (61.2181°, -149.9003°, elevation 102 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	62	55
2	62	55
3	62	54
4	62	54
5	62	54
6	62	54
7	62	54
8	62	54
9	62	54
10	62	54
11	62	54
12	62	54
13	62	54
14	61	54
15	61	53
16	61	53
17	61	53
18	61	53
19	61	53
20	60	53
21	60	52
22	60	52
23	60	52
24	60	52
25	59	51
26	59	51
27	59	51
28	59	51
29	59	51
30	58	50
31	58	50

	Clearer (%)	Cloudier (%)
1	28	72
2	29	71
3	29	71
4	29	71
5	29	71
6	30	70
7	30	70
8	30	70
9	30	70
10	31	69
11	31	69
12	31	69
13	30	70
14	30	70
15	31	69
16	31	69
17	30	70
18	30	70
19	30	70
20	31	69
21	31	69
22	31	69
23	32	68
24	32	68
25	31	69
26	32	68
27	33	67
28	33	67
29	33	67
30	33	67
31	33	67

	Rain chance (%)
1	45
2	45
3	45
4	45
5	45
6	45
7	46
8	46
9	46
10	47
11	47
12	47
13	48
14	48
15	49
16	49
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	49
25	49
26	49
27	49
28	49
29	49
30	48
31	48

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	83	17
5	83	17
6	83	17
7	84	16
8	84	16
9	85	15
10	86	14
11	87	13
12	88	12
13	88	12
14	89	11
15	90	10
16	91	9
17	92	8
18	93	7
19	94	6
20	94	6
21	95	5
22	96	4
23	97	3
24	97	3
25	98	2
26	98	2
27	98	2
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°F)	Avg low (°F)
1	62	55
2	62	55
3	62	54
4	62	54
5	62	54
6	62	54
7	62	54
8	62	54
9	62	54
10	62	54
11	62	54
12	62	54
13	62	54
14	61	54
15	61	53
16	61	53
17	61	53
18	61	53
19	61	53
20	60	53
21	60	52
22	60	52
23	60	52
24	60	52
25	59	51
26	59	51
27	59	51
28	59	51
29	59	51
30	58	50
31	58	50

	Clearer (%)	Cloudier (%)
1	28	72
2	29	71
3	29	71
4	29	71
5	29	71
6	30	70
7	30	70
8	30	70
9	30	70
10	31	69
11	31	69
12	31	69
13	30	70
14	30	70
15	31	69
16	31	69
17	30	70
18	30	70
19	30	70
20	31	69
21	31	69
22	31	69
23	32	68
24	32	68
25	31	69
26	32	68
27	33	67
28	33	67
29	33	67
30	33	67
31	33	67

	Rain chance (%)
1	45
2	45
3	45
4	45
5	45
6	45
7	46
8	46
9	46
10	47
11	47
12	47
13	48
14	48
15	49
16	49
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	49
25	49
26	49
27	49
28	49
29	49
30	48
31	48

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	83	17
5	83	17
6	83	17
7	84	16
8	84	16
9	85	15
10	86	14
11	87	13
12	88	12
13	88	12
14	89	11
15	90	10
16	91	9
17	92	8
18	93	7
19	94	6
20	94	6
21	95	5
22	96	4
23	97	3
24	97	3
25	98	2
26	98	2
27	98	2
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°F)	Avg low (°F)
1	62	55
2	62	55
3	62	54
4	62	54
5	62	54
6	62	54
7	62	54
8	62	54
9	62	54
10	62	54
11	62	54
12	62	54
13	62	54
14	61	54
15	61	53
16	61	53
17	61	53
18	61	53
19	61	53
20	60	53
21	60	52
22	60	52
23	60	52
24	60	52
25	59	51
26	59	51
27	59	51
28	59	51
29	59	51
30	58	50
31	58	50

	Clearer (%)	Cloudier (%)
1	28	72
2	29	71
3	29	71
4	29	71
5	29	71
6	30	70
7	30	70
8	30	70
9	30	70
10	31	69
11	31	69
12	31	69
13	30	70
14	30	70
15	31	69
16	31	69
17	30	70
18	30	70
19	30	70
20	31	69
21	31	69
22	31	69
23	32	68
24	32	68
25	31	69
26	32	68
27	33	67
28	33	67
29	33	67
30	33	67
31	33	67

	Rain chance (%)
1	45
2	45
3	45
4	45
5	45
6	45
7	46
8	46
9	46
10	47
11	47
12	47
13	48
14	48
15	49
16	49
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	49
25	49
26	49
27	49
28	49
29	49
30	48
31	48

	Dry (%)	Comfortable (%)
1	83	17
2	83	17
3	83	17
4	83	17
5	83	17
6	83	17
7	84	16
8	84	16
9	85	15
10	86	14
11	87	13
12	88	12
13	88	12
14	89	11
15	90	10
16	91	9
17	92	8
18	93	7
19	94	6
20	94	6
21	95	5
22	96	4
23	97	3
24	97	3
25	98	2
26	98	2
27	98	2
28	99	1
29	99	1
30	99	1
31	99	1