July weather forecast
Juneau, AK

Blooming fireweed in Juneau, Alaska with snowy mountain peaks in the distance
Blooming fireweed in Juneau, Alaska with snowy mountain peaks in the distance

Weather in July

July is a moderate summer month in Juneau, Alaska, with an average temperature fluctuating between 55.8°F (13.2°C) and 45.1°F (7.3°C).

Temperature

The warmest month is July, with an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 45.1°F (7.3°C).

Humidity

In July, the average relative humidity is 88%.

Rainfall

In Juneau, during 20.2 rainfall days, 4.61" (117mm) of precipitation is typically accumulated. Throughout the year, there are 172.4 rainfall days, and 85.87" (2181mm) of precipitation is accumulated.

Snowfall

In Juneau, snow does not fall in June through September.

Ocean temperature

In July, the average ocean temperature is 50.7°F (10.4°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In July, the average length of the day in Juneau, Alaska, is 17h and 26min.
On the first day of the month, sunrise is at 3:57 am and sunset at 10:05 pm. On the last day of July, in Juneau, sunrise is at 4:48 am and sunset at 9:19 pm AKDT.

Sunshine

The average sunshine in July is 5.7h.

UV index

The months with the highest UV index in Juneau are May and July, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In July, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Juneau?

With an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 45.1°F (7.3°C), July is the warmest month in Juneau.

What is the average humidity in July in Juneau?

The average relative humidity in July in Juneau is 88%.

How many days does it rain in July in Juneau?

In Juneau, Alaska, in July, it is raining for 20.2 days, with typically 4.61" (117mm) of accumulated precipitation.

When it does not snow in Juneau?

In Juneau, snow does not fall in June through September.

What is the ocean temperature in July in Juneau?

In July, the average ocean temperature is 50.7°F (10.4°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Juneau have in July?

The average day length in July is 17h and 26min.

What time are sunrise and sunset in July in Juneau?

On the first day of July, sunrise is at 3:57 am and sunset at 10:05 pm. On the last day of the month, sunrise is at 4:48 am and sunset at 9:19 pm AKDT.

How long on average sun shines in July in Juneau?

In July, the average sunshine duration in Juneau, Alaska, is 5.7h.

What is the month with the highest UV index in Juneau?

May and July, with an average maximum UV index of 3, are months with the highest UV index in Juneau, Alaska.

How high is the UV index in July in Juneau?

The average daily maximum UV index in July in Juneau, Alaska, is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Juneau, AK

Average temperature in July - Juneau, AK
  • Average high temperature in July: 55.8°F

The warmest month (with the highest average high temperature) is July (55.8°F).
The months with the lowest average high temperature are January and December (25.7°F).

  • Average low temperature in July: 45.1°F

The month with the highest average low temperature is July (45.1°F).
The coldest month (with the lowest average low temperature) is February (17.1°F).

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Average pressure in July
Juneau, AK

Average pressure in July - Juneau, AK
  • Average pressure in July: 30.03"Hg

The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).

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Average wind speed in July
Juneau, AK

Average wind speed in July - Juneau, AK
  • Average wind speed in July: 3.7mph

The windiest month (with the highest average wind speed) is January (6.9mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).

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Average humidity in July
Juneau, AK

Average humidity in July - Juneau, AK
  • Average humidity in July: 88%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (86%).

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Average rainfall in July
Juneau, AK

Average rainfall in July - Juneau, AK
  • Average rainfall in July: 4.61"

The wettest month (with the highest rainfall) is October (9.88").
The driest month (with the least rainfall) is May (4.13").

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Average rainfall days in July
Juneau, AK

Average rainfall days in July - Juneau, AK
  • Average rainfall days in July: 20.2 days

The month with the highest number of rainy days is September (21.9 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in July
Juneau, AK

Average snowfall in July - Juneau, AK
  • Average snowfall in July: 0"

The month with the highest snowfall is December (62.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Juneau, AK

Average snowfall days in July - Juneau, AK
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in July
Juneau, AK

Average sea temperature in July - Juneau, AK
  • Average sea temperature in July: 50.7°F

The best month for swimming (with the highest average sea temperature) is August (53.5°F).
The coldest month (with the lowest average sea temperature) is March (40.3°F).

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Average daylight in July /
Average sunshine in July
Juneau, AK

Average daylight in July / Average sunshine in July - Juneau, AK
  • Average daylight in July: 17h and 26min

The month with the longest days is June (Average daylight: 18h and 9min).
The month with the shortest days is December (Average daylight: 6h and 31min).

  • Average sunshine in July: 5h and 42min

The month with the most sunshine is June (Average sunshine: 6h and 24min).
The month with the least sunshine is November (Average sunshine: 2h and 36min).

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Average sunshine days in July
Juneau, AK

Average sunshine days in July - Juneau, AK
  • Average sunshine days in July: 8.8 days

The month with the most sunshine days is May (10 days).
The month with the least sunshine days is November (6.1 days).

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Average UV index in July
Juneau, AK

Average UV index in July - Juneau, AK
  • Average UV index in July: 3

The months with the highest UV index are May and July (UV index 3).
The months with the lowest UV index are January, April, October, November and December (UV index 1).

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Average cloud cover in July
Juneau, AK

Average cloud cover in July - Juneau, AK
  • Average cloud cover in July: 68

The months with the most cloud cover are January and November (Cloud cover 72).
The month with the least cloud cover is May (Cloud cover 61).

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Average visibility in July
Juneau, AK

Average visibility in July - Juneau, AK
  • Average visibility in July: 4mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).

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