May · Alaska
Best time to visit Mendenhall Glacier in May Weather, crowds & prices
Weather in Mendenhall Glacier in May
Average temperature 3°C, 202 mm of rain, about 20 days with 6+ hours of sunshine and 88% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
5.2/10
Ranked #3 of 12 months
- Avg temp
- 3°C
- Rainfall
- 202 mm
- Humidity
- 88%
- Days with 6h+ sun
- 20
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Mendenhall Glacier scores 5.2/10 for nature and wildlife travel - one of the top 12-month picks (#3). Expect around 3°C, 202 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Mendenhall Glacier flows from the Juneau Icefield to a turquoise lake with boardwalks minutes from Alaska's capital.
May in Mendenhall Glacier — workable with trade-offs
May averages 3°C (38°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
202 mm makes this the wettest stretch of the year, though about 20 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 5.2/10 here, 3rd of 12 months, against 6.5/10 in the destination's best month.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Mendenhall Glacier in May?
- In May, Mendenhall Glacier averages 3°C, 202 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 5.2/10.
- Is May a good time to visit Mendenhall Glacier?
- May earns a 5.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Mendenhall Glacier in May?
- Expect about 202 mm of rain in May. Average humidity is 88% and there are about 20 days with 6+ hours of sunshine.
Curated in Mendenhall Glacier
Tickets & experiences
Things to do in Mendenhall Glacier
Mendenhall Glacier, Alaska. Live activities and tours from GetYourGuide, matched to this destination.