The highest day temperature in May 2023 was 61°F. The lowest night temperature was 36°F. The average values for day and night temperatures during May were 48.6°F и 43.8°F respectivly.

The average sea surface temperature in May 2023 for Juneau was 45.0°F. The maximum and minimum values were 40.8°F and 48.2°F respectively.

Most of the days in May are gloomy but you can also expect sunny days.

Precipitation total in May for Juneau is 2.3 in. It makes may one of the least rainy months of the year.

The average wind speed in May is 4.4 mph. It makes May one of the most windless months of the year for Juneau.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Juneau in May is 6.5 hours.