Juneau in May
In May, Juneau averages 13°C (55°F) during the day and 6°C (42°F) at night, with frequent rain — about 19 days of the month see precipitation (166 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Expect daily rain or showers, often in heavy bursts.
May is one of the wetter and less comfortable months in Juneau. If your dates are flexible, consider a different time of year.
How May compares to the rest of the year in Juneau
May is in the middle of the year for warmth in Juneau (5th of 12) and one of the driest months (11th of 12). Daytime temperature runs 5°C above the annual average (8°C). May runs 6°C warmer than April (6°C) and warms a further 3°C into June (16°C).
May sunrise & sunset in Juneau
Times shown for Juneau local time (America/Juneau), calculated for the 15th of May. They shift by a few minutes day to day across the month.
Photography light in Juneau — May
Golden-hour and blue-hour windows for the 15th of May, in Juneau's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Juneau in May
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on May's tier (Shoulder) and Juneau's popularity.
Crowds & pricing — May in Juneau
Juneau is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — May in Juneau
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Juneau in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 0°C / 32°F | -3°C / 26°F | 301 mm | 23 | — |
| February | -1°C / 31°F | -5°C / 23°F | 213 mm | 18 | — |
| March | 2°C / 36°F | -2°C / 28°F | 184 mm | 20 | — |
| April | 6°C / 43°F | 1°C / 34°F | 193 mm | 22 | — |
| May | 13°C / 55°F | 6°C / 42°F | 166 mm | 19 | — |
| June | 16°C / 60°F | 10°C / 49°F | 179 mm | 23 | — |
| July | 18°C / 64°F | 12°C / 54°F | 227 mm | 23 | — |
| August | 17°C / 63°F | 12°C / 53°F | 362 mm | 24 | — |
| September | 14°C / 56°F | 8°C / 47°F | 387 mm | 23 | — |
| October | 8°C / 46°F | 3°C / 38°F | 361 mm | 24 | — |
| November | 2°C / 36°F | -1°C / 29°F | 308 mm | 24 | — |
| December | 0°C / 32°F | -4°C / 25°F | 308 mm | 22 | — |
Other cities with similar May weather
🌍 See the full ranked list of climate twins for Juneau in May →
Frequently asked questions
How hot is Juneau in May?
In May, Juneau averages a high of 13°C (55°F) and a low of 6°C (42°F) — generally cool.
Does it rain a lot in Juneau in May?
May is quite rainy in Juneau, with about 19 rainy days on average.
Is May a good time to visit Juneau?
May is cool but on the rainy side. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Juneau in May?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full May packing list for Juneau for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.