AI-generatedJuneau at a glance
- Best time
- Apr – Jun
- Warmest month
- Jul · 17°
- Sunshine a year
- 1,370 h
- Rain a year
- 2,412 mm
- Climate
- Continental
- Time zone
- UTC−9 / UTC−8
- Elevation
- 17 m
Climate in Juneau
Juneau has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 17 °C, while January is the coolest at −3 °C. With around 1,370 hours of sunshine a year, Juneau is rather dull; May is the sunniest month with 6.8 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: April – June
Keep in mindFrequent rainSnow
A typical day in October
- Morning, 08:00: about 2°
- Midday, 13:00: about 6°
- Afternoon, 16:00: about 6°
- Evening, 20:00: about 4°
- Night, 23:00: about 3°
07:3117:56
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:06–08:26 · evening 17:00–18:20
- Blue hour
- Morning 06:51–07:06 · evening 18:20–18:36
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Juneau in October?
In October, Juneau is cold: daytime highs average 7 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2 hours a day. It rains often – on about 22 days, adding up to 302 mm. Snow falls on about 6 days. All in all, October is not an ideal month for a holiday in Juneau.
More details for October
- Daylight
- 10 h 25 min07:31 – 17:56
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 80 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 6 days1 cm or more of fresh snowAll months
- Time zone
- UTC−8America/Juneau
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Sunshine hours in Juneau
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 2.1 of 10.4 hours of daylight in Juneau, 20 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Juneau
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 1 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 6).
Minutes until sunburn in October
- Very fair skin
- over 2 h
- Fair skin
- over 2 h
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Juneau: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Juneau has about 22 rainy days with 302 mm of rain in total.
Wind and clouds in Juneau
How breezy and how cloudy Juneau is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Juneau typically peaks at 19 km/h during the day: Beaufort 3, light breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 80 % of the sky over Juneau: mostly cloudy, with about 2.1 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Snow in Juneau
When Juneau is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Juneau has about 6 days with at least 1 cm of fresh snow, 27 cm in total. The chance of seeing snow during a week's stay is 51 out of 100: likely.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Juneau
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 2°. The room should be heated.
The coolest nights are in January (−7°), the warmest in July (11°). Nights fall below 8 °C on average from October to May, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 0 | −3° | −7° | 1.4 h | 20 | 241 |
| FebruaryFeb | 1 | −2° | −6° | 2.8 h | 17 | 169 |
| MarchMar | 5 | 0° | −5° | 4.2 h | 18 | 156 |
| AprilApr | 11 | 5° | −1° | 5.7 h | 17 | 130 |
| MayMay | 16 | 10° | 4° | 6.8 h | 16 | 128 |
| JuneJun | 14 | 15° | 9° | 6.4 h | 16 | 120 |
| JulyJul | 7 | 17° | 11° | 5.1 h | 18 | 169 |
| AugustAug | 6 | 17° | 11° | 4.8 h | 19 | 227 |
| SeptemberSep | 0 | 13° | 8° | 3.1 h | 21 | 295 |
| OctoberOct | 0 | 7° | 2° | 2.1 h | 22 | 302 |
| NovemberNov | 0 | 0° | −4° | 1.5 h | 21 | 228 |
| DecemberDec | 0 | −3° | −6° | 1.2 h | 20 | 246 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
58.30° N, 134.42° W · 17 m · America/Juneau
Best time to visit Juneau
The best time to visit Juneau is from April to June. The wettest month is October with 302 mm of precipitation.
Juneau through the seasons
How the weather changes over the seasons, with averages for each.
Juneau in spring
Mar – May
Poor
- 0–10 °C by day
- 6 h of sun a day
- 50 rainy days in all
Juneau in summer
Jun – Aug
Poor
- 15–17 °C by day
- 5 h of sun a day
- 53 rainy days in all
Juneau in autumn
Sep – Nov
Poor
- 0–13 °C by day
- 2 h of sun a day
- 64 rainy days in all
Juneau in winter
Dec – Feb
Poor
- -3–-1 °C by day
- 2 h of sun a day
- 58 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Juneau for you.
Your best months: April – June
Based on the climate averages; tap a month to see its details.
Compare two months in Juneau
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
May has the better holiday weather in Juneau: score 16 against 0. In May, days are 3 °C warmer than in October. May has 6 fewer rainy days. The sun shines 5 hours longer a day in May.
| Month | October | May |
|---|---|---|
| Weather score | 0 | 16better |
| Day high | 7° | 10° |
| Night low | 2° | 4° |
| Sunshine | 2.1 h | 6.8 hbetter |
| Rainy days | 22 | 16better |
| Rainfall | 302 mm | 128 mmbetter |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
All year
12 or more rainy days
Snow
Oct – May
Snow on 2 or more days
Juneau month by month
The typical weather for every month at a glance.
0January-3° · 1 h
In January, Juneau is freezing cold: daytime highs average −3 °C, and nights often drop below freezing (−7 °C). The sun is scarce, with only about 1 hours a day. Precipitation, often as snow, falls on about 20 days, totalling 241 mm. Snow falls on about 18 days. All in all, January is not an ideal month for a holiday in Juneau.
Juneau in January1February-1° · 3 h
In February, Juneau is freezing cold: daytime highs average −2 °C, and nights often drop below freezing (−6 °C). The sun is scarce, with only about 3 hours a day. Precipitation, often as snow, falls on about 17 days, totalling 169 mm. Snow falls on about 14 days. All in all, February is not an ideal month for a holiday in Juneau.
Juneau in February5March0° · 4 h
In March, Juneau is freezing cold: daytime highs average 0 °C, and nights often drop below freezing (−5 °C). Expect around 4 hours of sunshine a day. Precipitation, often as snow, falls on about 18 days, totalling 156 mm. Snow falls on about 15 days. All in all, March is not an ideal month for a holiday in Juneau.
Juneau in March11April5° · 6 h
In April, Juneau is cold: daytime highs average 5 °C, and nights often drop below freezing (−1 °C). Expect around 6 hours of sunshine a day. It rains often – on about 17 days, adding up to 130 mm. Snow falls on about 10 days. All in all, April is not an ideal month for a holiday in Juneau.
Juneau in April16May10° · 7 h
In May, Juneau is cool: daytime highs average 10 °C, and nights cool down to about 4 °C. The sun shines for around 7 hours a day. It rains often – on about 16 days, adding up to 128 mm. Snow falls on about 2 days. All in all, May is not an ideal month for a holiday in Juneau.
Juneau in May14June15° · 6 h
In June, Juneau is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. Expect around 6 hours of sunshine a day. It rains often – on about 16 days, adding up to 120 mm. All in all, June is not an ideal month for a holiday in Juneau.
Juneau in June7July17° · 5 h
In July, Juneau is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. Expect around 5 hours of sunshine a day. It rains often – on about 18 days, adding up to 169 mm. All in all, July is not an ideal month for a holiday in Juneau.
Juneau in July6August17° · 5 h
In August, Juneau is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. Expect around 5 hours of sunshine a day. It rains often – on about 19 days, adding up to 227 mm. All in all, August is not an ideal month for a holiday in Juneau.
Juneau in August0September13° · 3 h
In September, Juneau is cool: daytime highs average 13 °C, and nights cool down to about 8 °C. The sun is scarce, with only about 3 hours a day. It rains often – on about 21 days, adding up to 295 mm. All in all, September is not an ideal month for a holiday in Juneau.
Juneau in September0October7° · 2 h
In October, Juneau is cold: daytime highs average 7 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2 hours a day. It rains often – on about 22 days, adding up to 302 mm. Snow falls on about 6 days. All in all, October is not an ideal month for a holiday in Juneau.
Juneau in October0November0° · 2 h
In November, Juneau is freezing cold: daytime highs average 0 °C, and nights often drop below freezing (−4 °C). The sun is scarce, with only about 2 hours a day. Precipitation, often as snow, falls on about 21 days, totalling 228 mm. Snow falls on about 15 days. All in all, November is not an ideal month for a holiday in Juneau.
Juneau in November0December-2° · 1 h
In December, Juneau is freezing cold: daytime highs average −3 °C, and nights often drop below freezing (−6 °C). The sun is scarce, with only about 1 hours a day. Precipitation, often as snow, falls on about 20 days, totalling 246 mm. Snow falls on about 17 days. All in all, December is not an ideal month for a holiday in Juneau.
Juneau in DecemberJuneau compared
Put Juneau side by side with another destination.
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Juneau vs. Sitka
In October the holiday weather in Juneau and Sitka is about equally good (score 0 vs. 0). During the day Sitka is 2 °C warmer than Juneau.
| in October | Juneau | Sitka |
|---|---|---|
| Holiday score | 0 | 0 |
| Daytime high | 7° | 9° |
| Sea | – | 10° |
| Sunshine | 2 h | 2 h |
| Rainy days | 22 | 22 |
| Best time | Apr – Jun | Apr – Jul |
Through the year
USA in October: the best places
In October, Juneau ranks 29 among the 31 nearest destinations in this country.
- Mariposa (Yosemite)23°98
- 2Sacramento25°96
- 3San Jose23°96
- 4Reno19°95
- 5Napa Valley24°95
- 6San Francisco21°14°95
- 7Oakland21°14°95
- 8Moab21°95
- 29JuneauThis page7°0
Planning a trip to Juneau
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Juneau in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Juneau has its best school-holiday weather during May half-term (score 16) and its weakest during October half-term (score 0).
- 9
Easter holidays
Mar – Apr
Poor
- 3 °C by day
- 5.3 h of sun a day
- 17 rainy days a month
Keep in mind: Frequent rain, Snow
- 16
May half-term
May – Jun
PoorBest holidays
- 11 °C by day
- 6.7 h of sun a day
- 16 rainy days a month
Keep in mind: Frequent rain, Snow
- 6
Summer holidays
Jul – Aug
Poor
- 17 °C by day
- 4.9 h of sun a day
- 19 rainy days a month
Keep in mind: Frequent rain
- 0
October half-term
Oct
Poor
- 7 °C by day
- 2.1 h of sun a day
- 22 rainy days a month
Keep in mind: Frequent rain, Snow
- 0
Christmas holidays
Dec – Jan
Poor
- −3 °C by day
- 1.3 h of sun a day
- 20 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 9 h 5 min
- Distance
- 7,120 km
- Time zone
- UTC−8
- Jet lag
- About 6 days (9 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Juneau
When is the best time to visit Juneau?
The best time to visit Juneau is from April to June. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Juneau?
July is the warmest month, with average highs of 17 °C and nights around 11 °C. January is the coolest month at −3 °C.
When does it rain most in Juneau?
The wettest month is October with 302 mm of precipitation. The driest month is June with 120 mm.
How many hours of sunshine does Juneau get?
Juneau gets around 1,370 hours of sunshine a year. The sunniest month is May with 6.8 hours a day; in December there are 1.2 hours a day.
What time zone is Juneau in?
Juneau uses the time zone America/Juneau: UTC−9 in January and UTC−8 in July.
How long is the flight from London to Juneau?
A nonstop flight from London to Juneau takes about 9 h 5 min, for a straight-line distance of about 7,120 km.
Which school holidays are best for Juneau?
Juneau has its best school-holiday weather during May half-term (score 16) and its weakest during October half-term (score 0). Holiday ratings (0–100): Easter holidays 9, May half-term 16, Summer holidays 6, October half-term 0, Christmas holidays 0.
Near Juneau
Other destinations close by.
Places with a climate like Juneau
Destinations whose weather through the year is closest to Juneau's – good alternatives.