June 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 June

The first month of the summer, June, is a fresh month in Juneau, Alaska, with an average temperature fluctuating between 51.6°F (10.9°C) and 40.6°F (4.8°C).

Temperature

In June, the average high-temperature is essentially the same as in May - a fresh 51.6°F (10.9°C). In Juneau, in June, the average low-temperature is 40.6°F (4.8°C).

Humidity

In Juneau, the average relative humidity in June is 88%.

Rainfall

In Juneau, during June, the rain falls for 21.3 days and regularly aggregates up to 4.53" (115mm) of precipitation. Throughout the year, there are 172.4 rainfall days, and 85.87" (2181mm) of precipitation is accumulated.

Snowfall

In Juneau, snow does not fall through September.

Ocean temperature

In June, the average ocean temperature in Juneau, Alaska, is 47.5°F (8.6°C).
Note: Swimming in 47.5°F (8.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

With an average of 18h and 9min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 4:01 am and sunset at 9:49 pm. On the last day of the month, sunrise is at 3:56 am and sunset at 10:06 pm AKDT.

Sunshine

With an average of 6.4h of sunshine, June has the most sunshine of the year.

UV index

The average daily maximum UV index in June in Juneau is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In June, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in June in Juneau?

The average relative humidity in June is 88%.

How many days does it rain in June in Juneau?

In Juneau, Alaska, in June, it is raining for 21.3 days, with typically 4.53" (115mm) of accumulated precipitation.

When it does not snow in Juneau?

June through September are months without snowfall in Juneau, Alaska.

Does it snow in Juneau in June?

In June, in Juneau, it doesn't snow. May is the latest month when it typically snows.

What is the ocean temperature in June in Juneau?

In Juneau, Alaska, the average seawater temperature in June is 47.5°F (8.6°C). Swimming in 47.5°F (8.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

When are the longest days in Juneau?

The month with the longest days in Juneau, Alaska, is June, with an average of 18h and 9min of daylight.

How many hours of daylight does Juneau have in June?

In June, the average day length in Juneau, Alaska, is 18h and 9min.

What time are sunrise and sunset in June in Juneau?

In June, on the first day of the month, sunrise is at 4:01 am and sunset at 9:49 pm. On the last day of the month, in Juneau, sunrise is at 3:56 am and sunset at 10:06 pm AKDT.

What month has the most sunshine in Juneau?

With an average of 6.4h of sunshine, June has the most sunshine of the year.

How many hours of sunshine does Juneau have in June?

In June, the average sunshine duration in Juneau is 6.4h.

What is the UV index intensity in June in Juneau?

The average daily maximum UV index in June is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
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 June
Juneau, AK

Average temperature in June - Juneau, AK
  • Average high temperature in June: 51.6°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 June: 40.6°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 June
Juneau, AK

Average pressure in June - Juneau, AK
  • Average pressure in June: 29.96"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 June
Juneau, AK

Average wind speed in June - Juneau, AK
  • Average wind speed in June: 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 June
Juneau, AK

Average humidity in June - Juneau, AK
  • Average humidity in June: 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 June
Juneau, AK

Average rainfall in June - Juneau, AK
  • Average rainfall in June: 4.53"

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 June
Juneau, AK

Average rainfall days in June - Juneau, AK
  • Average rainfall days in June: 21.3 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 June
Juneau, AK

Average snowfall in June - Juneau, AK
  • Average snowfall in June: 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 June
Juneau, AK

Average snowfall days in June - Juneau, AK
  • Average snowfall days in June: 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 June
Juneau, AK

Average sea temperature in June - Juneau, AK
  • Average sea temperature in June: 47.5°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 June /
Average sunshine in June
Juneau, AK

Average daylight in June / Average sunshine in June - Juneau, AK
  • Average daylight in June: 18h and 9min

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 June: 6h and 24min

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 June
Juneau, AK

Average sunshine days in June - Juneau, AK
  • Average sunshine days in June: 6.3 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 June
Juneau, AK

Average UV index in June - Juneau, AK
  • Average UV index in June: 2

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 June
Juneau, AK

Average cloud cover in June - Juneau, AK
  • Average cloud cover in June: 70

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 June
Juneau, AK

Average visibility in June - Juneau, AK
  • Average visibility in June: 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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