Juneau weather in May

In May, Juneau sees average daytime highs of 50°F and overnight lows near 37°F, with 5.4 in of precipitation across 16 wet days and about 16.4 hours of daylight. It is the 5th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 45°F in the first days to 54°F by the end. The sky is clear or mostly clear about 20% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 18 min at the start of May to 17 h 24 min by month's end. Set against the rest of the year, May is Juneau's 2nd-clearest and 9th-windiest month. For the whole year in context, see Juneau's year-round climate.

Daytime high: 50°; 5th warmest
Overnight low: 37°; 8th coldest
Precipitation: 5.4 in; 16 wet days
Daylight: 16 h 24 min; 3:41 AM – 8:07 PM
Cloud cover: 72%; 2nd clearest
Wind: 4 mph; 9th windiest
Solar energy: 5.09 kWh/m²
Travel score: 1.9; out of 10

Juneau is consolidated city-borough and capital of the U.S. state of Alaska.

Density: 4/km²; people per km²
Founded: 1881

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

← April Juneau year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 45°F in the first days to 54°F by the end.

A typical May day in Juneau reaches about 50°F in the afternoon and slips back to 37°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 42°F and 60°F. Set against its neighbours, May runs about 9°F warmer than April and about 8°F cooler than June.

	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)	45	45	45	46	46	46	47	47	47	48	48	49	49	49	50	50	51	51	51	52	52	52	53	53	53	54	54	54	54	55	55
Avg low (°F)	33	33	33	33	34	34	34	34	35	35	35	35	36	36	37	37	37	38	38	38	39	39	40	40	40	41	41	41	42	42	42

	Avg high (°F)	Avg low (°F)
1	45	33
2	45	33
3	45	33
4	46	33
5	46	34
6	46	34
7	47	34
8	47	34
9	47	35
10	48	35
11	48	35
12	49	35
13	49	36
14	49	36
15	50	37
16	50	37
17	51	37
18	51	38
19	51	38
20	52	38
21	52	39
22	52	39
23	53	40
24	53	40
25	53	40
26	54	41
27	54	41
28	54	41
29	54	42
30	55	42
31	55	42

How May really feels in Juneau

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 11 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

The story in May is cold — wind chill drags the overnight "feels like" below the raw low.

Juneau weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 11th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	27° / 19°	9.8	19.8	19.4	6.8	0.0
Feb	29° / 20°	7.4	16.6	15.9	8.9	0.0
Mar	33° / 22°	7.2	17.9	17.7	11.4	0.0
Apr	41° / 30°	5.6	16.5	11.9	14	0.2
May	50° / 37°	5.4	16	3.6	16.4	1.9
Jun	58° / 46°	5.3	16.5	0	17.8	3.3
Jul	60° / 50°	7.0	18.9	0	17.2	3.7
Aug	59° / 49°	9.3	19.3	0	15.1	3.5
Sep	53° / 43°	13.0	21	0.2	12.5	2.2
Oct	43° / 34°	13.0	22.7	8.2	9.9	0.4
Nov	33° / 24°	10.3	20.9	18.6	7.5	0.0
Dec	29° / 21°	10.8	21.1	20.4	6.2	0.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 9% of May, with mostly cloudy or overcast conditions the remaining 71%.

	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 (%)	27	27	27	28	29	29	29	30	30	30	32	31	31	32	32	33	32	32	32	31	30	30	29	29	27	27	25	24	23	23	21
Cloudier (%)	73	73	73	72	71	71	71	70	70	70	68	69	69	68	68	67	68	68	68	69	70	70	71	71	73	73	75	76	77	77	79

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	27	73
4	28	72
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	30	70
11	32	68
12	31	69
13	31	69
14	32	68
15	32	68
16	33	67
17	32	68
18	32	68
19	32	68
20	31	69
21	30	70
22	30	70
23	29	71
24	29	71
25	27	73
26	27	73
27	25	75
28	24	76
29	23	77
30	23	77
31	21	79

Chance of precipitation in May

Any precipitationSnow

Juneau gets around 5.4 in of rain and snow over 16 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 51% and peaks near 57% on the wettest days, and about 4 days bring snow.

	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 (%)	54	54	54	54	53	53	52	52	51	50	50	49	49	48	48	48	48	48	48	48	49	50	50	51	52	53	54	55	56	57	57
Snow chance (%)	27	26	26	25	24	23	21	20	19	17	16	15	14	12	11	10	9	8	7	6	5	4	4	3	3	3	3	2	2	2	2

	Rain chance (%)	Snow chance (%)
1	54	27
2	54	26
3	54	26
4	54	25
5	53	24
6	53	23
7	52	21
8	52	20
9	51	19
10	50	17
11	50	16
12	49	15
13	49	14
14	48	12
15	48	11
16	48	10
17	48	9
18	48	8
19	48	7
20	48	6
21	49	5
22	50	4
23	50	4
24	51	3
25	52	3
26	53	3
27	54	3
28	55	2
29	56	2
30	57	2
31	57	2

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in May

Winds average 4 mph in May.

Across May, 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 May

DaylightNight

Daylight runs from about 15 h 18 min at the start of May to 17 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 126 minutes over May. Sunrise moves from 4:16 AM to 3:15 AM, and sunset from 7:34 PM to 8:36 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)	15.3	15.4	15.5	15.5	15.6	15.7	15.8	15.9	15.9	16.0	16.1	16.2	16.2	16.3	16.4	16.4	16.5	16.6	16.6	16.7	16.8	16.8	16.9	17.0	17.0	17.1	17.1	17.2	17.2	17.3	17.4
Sunrise (AM)	4:16	4:13	4:11	4:08	4:06	4:03	4:01	3:59	3:56	3:54	3:52	3:49	3:47	3:45	3:43	3:41	3:39	3:37	3:35	3:33	3:31	3:29	3:27	3:25	3:24	3:22	3:20	3:19	3:17	3:16	3:15
Sunset (PM)	7:34	7:36	7:38	7:41	7:43	7:45	7:47	7:50	7:52	7:54	7:56	7:58	8:01	8:03	8:05	8:07	8:09	8:11	8:13	8:15	8:17	8:19	8:21	8:23	8:25	8:27	8:29	8:30	8:32	8:34	8:36

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	15.3	4:16	7:34
2	15.4	4:13	7:36
3	15.5	4:11	7:38
4	15.5	4:08	7:41
5	15.6	4:06	7:43
6	15.7	4:03	7:45
7	15.8	4:01	7:47
8	15.9	3:59	7:50
9	15.9	3:56	7:52
10	16.0	3:54	7:54
11	16.1	3:52	7:56
12	16.2	3:49	7:58
13	16.2	3:47	8:01
14	16.3	3:45	8:03
15	16.4	3:43	8:05
16	16.4	3:41	8:07
17	16.5	3:39	8:09
18	16.6	3:37	8:11
19	16.6	3:35	8:13
20	16.7	3:33	8:15
21	16.8	3:31	8:17
22	16.8	3:29	8:19
23	16.9	3:27	8:21
24	17.0	3:25	8:23
25	17.0	3:24	8:25
26	17.1	3:22	8:27
27	17.1	3:20	8:29
28	17.2	3:19	8:30
29	17.2	3:17	8:32
30	17.3	3:16	8:34
31	17.4	3:15	8:36

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.09 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 0.29 kWh/m² to a high of 5.09 kWh/m² in May across the year — May's 5.09 kWh/m² sits near the top of that range.

	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)	4.7	4.8	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.1	5.1	5.1	5.1	5.1	5.1	5.1
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.7	Bright
2	4.8	Bright
3	4.8	Bright
4	4.8	Bright
5	4.9	Bright
6	4.9	Bright
7	5.0	Bright
8	5.0	Bright
9	5.0	Bright
10	5.1	Bright
11	5.1	Bright
12	5.1	Bright
13	5.2	Bright
14	5.2	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.2	Bright
19	5.2	Bright
20	5.2	Bright
21	5.2	Bright
22	5.2	Bright
23	5.2	Bright
24	5.2	Bright
25	5.1	Bright
26	5.1	Bright
27	5.1	Bright
28	5.1	Bright
29	5.1	Bright
30	5.1	Bright
31	5.1	Bright

Planning a trip in May

Is May a good time to visit Juneau?

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

1.9

Sightseeing

5th-best month of the year

—

Beach & pool

never really warm enough

May is a weaker month for outdoor sightseeing in Juneau.

What to pack for Juneau in May

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

In May, Juneau sees daytime highs around 50°F and nights near 37°F. Pack a warm layer and rain gear. Worth having: sun protection. About 16 days see rain.

a warm layerrain gearsun protection

UV index in Juneau in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Juneau peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	4	5	7	9	5	4	1	1	0
Level	Low	Low	Moderate	Moderate	Moderate	High	Very high	High	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Moderate
Apr	4	Moderate
May	5	Moderate
Jun	7	High
Jul	9	Very high
Aug	5	High
Sep	4	Moderate
Oct	1	Low
Nov	1	Low
Dec	0	Low

Location & terrain

Where is Juneau?

Juneau sits at 58.3°N, 134.4°W, 56 ft above sea level, in United States. The nearest listed city is Whitehorse, 168 mi away.

Topography around Juneau

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

Within 2 miles, the terrain around Juneau has large variations in elevation — a maximum elevation change of 3,556 ft around an average of 945 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,486 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 7,946 ft.

The land around Juneau is covered by trees (57%) within 2 miles, trees (40%) and water (22%) within 10 miles, and trees (35%), snow and ice (25%) and water (24%) within 50 miles.

2 miles

3,556 ft

trees 57%

10 miles

5,486 ft

trees 40%

50 miles

7,946 ft

trees 35%

treesgrasslandartificial surfacesbare terrainsnow and icewatermoss and lichen

← April Juneau year-round climate June →Best places to visit in May

May weather nearby: Whitehorse 168 mi · Terrace 343 mi · Dawson City 431 mi · Fort St. John 525 mi · Prince George 541 mi · Eagle River 564 mi · Anchorage 574 mi · Badger 621 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 Juneau (58.3019°, -134.4197°, elevation 56 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. 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	45	33
2	45	33
3	45	33
4	46	33
5	46	34
6	46	34
7	47	34
8	47	34
9	47	35
10	48	35
11	48	35
12	49	35
13	49	36
14	49	36
15	50	37
16	50	37
17	51	37
18	51	38
19	51	38
20	52	38
21	52	39
22	52	39
23	53	40
24	53	40
25	53	40
26	54	41
27	54	41
28	54	41
29	54	42
30	55	42
31	55	42

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	27	73
4	28	72
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	30	70
11	32	68
12	31	69
13	31	69
14	32	68
15	32	68
16	33	67
17	32	68
18	32	68
19	32	68
20	31	69
21	30	70
22	30	70
23	29	71
24	29	71
25	27	73
26	27	73
27	25	75
28	24	76
29	23	77
30	23	77
31	21	79

	Rain chance (%)	Snow chance (%)
1	54	27
2	54	26
3	54	26
4	54	25
5	53	24
6	53	23
7	52	21
8	52	20
9	51	19
10	50	17
11	50	16
12	49	15
13	49	14
14	48	12
15	48	11
16	48	10
17	48	9
18	48	8
19	48	7
20	48	6
21	49	5
22	50	4
23	50	4
24	51	3
25	52	3
26	53	3
27	54	3
28	55	2
29	56	2
30	57	2
31	57	2

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	45	33
2	45	33
3	45	33
4	46	33
5	46	34
6	46	34
7	47	34
8	47	34
9	47	35
10	48	35
11	48	35
12	49	35
13	49	36
14	49	36
15	50	37
16	50	37
17	51	37
18	51	38
19	51	38
20	52	38
21	52	39
22	52	39
23	53	40
24	53	40
25	53	40
26	54	41
27	54	41
28	54	41
29	54	42
30	55	42
31	55	42

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	27	73
4	28	72
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	30	70
11	32	68
12	31	69
13	31	69
14	32	68
15	32	68
16	33	67
17	32	68
18	32	68
19	32	68
20	31	69
21	30	70
22	30	70
23	29	71
24	29	71
25	27	73
26	27	73
27	25	75
28	24	76
29	23	77
30	23	77
31	21	79

	Rain chance (%)	Snow chance (%)
1	54	27
2	54	26
3	54	26
4	54	25
5	53	24
6	53	23
7	52	21
8	52	20
9	51	19
10	50	17
11	50	16
12	49	15
13	49	14
14	48	12
15	48	11
16	48	10
17	48	9
18	48	8
19	48	7
20	48	6
21	49	5
22	50	4
23	50	4
24	51	3
25	52	3
26	53	3
27	54	3
28	55	2
29	56	2
30	57	2
31	57	2

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°F)	Avg low (°F)
1	45	33
2	45	33
3	45	33
4	46	33
5	46	34
6	46	34
7	47	34
8	47	34
9	47	35
10	48	35
11	48	35
12	49	35
13	49	36
14	49	36
15	50	37
16	50	37
17	51	37
18	51	38
19	51	38
20	52	38
21	52	39
22	52	39
23	53	40
24	53	40
25	53	40
26	54	41
27	54	41
28	54	41
29	54	42
30	55	42
31	55	42

	Clearer (%)	Cloudier (%)
1	27	73
2	27	73
3	27	73
4	28	72
5	29	71
6	29	71
7	29	71
8	30	70
9	30	70
10	30	70
11	32	68
12	31	69
13	31	69
14	32	68
15	32	68
16	33	67
17	32	68
18	32	68
19	32	68
20	31	69
21	30	70
22	30	70
23	29	71
24	29	71
25	27	73
26	27	73
27	25	75
28	24	76
29	23	77
30	23	77
31	21	79

	Rain chance (%)	Snow chance (%)
1	54	27
2	54	26
3	54	26
4	54	25
5	53	24
6	53	23
7	52	21
8	52	20
9	51	19
10	50	17
11	50	16
12	49	15
13	49	14
14	48	12
15	48	11
16	48	10
17	48	9
18	48	8
19	48	7
20	48	6
21	49	5
22	50	4
23	50	4
24	51	3
25	52	3
26	53	3
27	54	3
28	55	2
29	56	2
30	57	2
31	57	2

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100