The highest day temperature in July 2025 was 69°F. The lowest night temperature was 41°F. The average values for day and night temperatures during July were 54.2°F и 45.0°F respectivly.

The average sea surface temperature in July 2025 for Juneau was 54.7°F. The maximum and minimum values were 52.6°F and 57.2°F respectively.

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

Precipitation total in July for Juneau is 2.4 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 3.5 mph. It makes July the most windless month 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 July is 5.4 hours.