July Weather in Juneau, United States

Last updated: June 24, 2025

In July, the average temperature in Juneau, United States hovers around 23°C (74°F), with a minimum of 12°C (53°F) and a maximum reaching 34°C (93°F). Expect 102 mm (4.0 in) of precipitation spread over approximately 10 days, along with an average humidity of 78%. Be prepared for a mix of pleasant warmth and potential rain!

July Temperature in Juneau

In July, in Juneau, the average temperature is 23°C (74°F), with maximums reaching 34°C (93°F) and minimums dipping as low as 12°C (53°F). This makes it an ideal time to explore and enjoy the vibrant atmosphere of Juneau, so pack accordingly!

July Weather in Juneau: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Juneau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juneau, July typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (93°F) and lows dropping to around 12°C (53°F).

Data source: Temperature data for Juneau generated using information from the Copernicus Climate Change Service.

July Precipitation in Juneau

In Juneau in July, the total precipitation amount is 102 mm (4.0 in) falling over the course of 10 days.

July Precipitation Trends in Juneau

The chart displays monthly precipitation patterns in Juneau, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Juneau, July typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Juneau

In Juneau in July humidity is 78%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping embrace, making travel somewhat stifling and prompting frequent breaks to hydrate and seek shade.

July Average Humidity in Juneau

This chart illustrates the average monthly humidity levels in Juneau, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Juneau is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Juneau

In Juneau in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Juneau.

Maximum UV Index Levels in Juneau for July

The chart shows the monthly maximum UV Index (UVI) for Juneau in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Juneau typically reaches 10, which falls under the very high exposure category.

Data source: Juneau July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How July Weather in Juneau Compares to Other Months

Weather in Juneau varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Juneau, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Juneau, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	48 mm (1.9 inches)	85%	moderate
February Weather	-6°C (22°F)	50 mm (2.0 inches)	85%	moderate
March Weather	1°C (35°F)	58 mm (2.3 inches)	85%	moderate
April Weather	7°C (45°F)	104 mm (4.1 inches)	85%	very high
May Weather	15°C (59°F)	120 mm (4.7 inches)	78%	very high
June Weather	21°C (69°F)	110 mm (4.3 inches)	80%	very high
July Weather	23°C (74°F)	102 mm (4.0 inches)	78%	very high
August Weather	21°C (71°F)	97 mm (3.8 inches)	76%	very high
September Weather	18°C (64°F)	93 mm (3.6 inches)	79%	high
October Weather	10°C (51°F)	112 mm (4.4 inches)	83%	moderate
November Weather	2°C (36°F)	45 mm (1.8 inches)	88%	moderate
December Weather	-2°C (29°F)	46 mm (1.8 inches)	81%	low