May · Alaska
Best time to visit Ketchikan in May Weather, crowds & prices
Weather in Ketchikan in May
Average temperature 9°C, 158 mm of rain, about 17 days with 6+ hours of sunshine and 83% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.6/10
Ranked #4 of 12 months
- Avg temp
- 9°C
- Rainfall
- 158 mm
- Humidity
- 83%
- Days with 6h+ sun
- 17
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Ketchikan scores 6.6/10 for nature and wildlife travel - an above-average month (#4 of 12). Expect around 9°C, 158 mm of rain, and roughly 17 days with 6+ hours of sunshine this month.
Ketchikan stacks totem poles and fishing docks along the Inside Passage, with Misty Fjords floatplane trips nearby.
May in Ketchikan: mixed conditions, plan around the weather
May averages 9°C (48°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 158 mm this is a genuinely wet month: about 17 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 6.6/10 here, 4th of 12 months, against 7.4/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Ketchikan in May?
- In May, Ketchikan averages 9°C, 158 mm of rain, and about 17 days with 6+ hours of sunshine. Its climate-comfort score is 6.6/10.
- Is May a good time to visit Ketchikan?
- May earns a 6.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Ketchikan in May?
- Expect about 158 mm of rain in May. Average humidity is 83% and there are about 17 days with 6+ hours of sunshine.
Curated in Ketchikan
Tickets & experiences
Things to do in Ketchikan
Ketchikan, Alaska. Live activities and tours from GetYourGuide, matched to this destination.