August weather forecast
Gustavus, AK

Brown sand and water on a section of the Gustavus Beach, Alaska, and snow-peaked mountains in the far view
Brown sand and water on a section of the Gustavus Beach, Alaska, and snow-peaked mountains in the far view

Weather in August

August, the last month of the summer in Gustavus, is another mild month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 56.5°F (13.6°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still moderate 56.5°F (13.6°C). In August, in Gustavus, the average low-temperature is 48.9°F (9.4°C).

Humidity

With an average relative humidity of 90%, August is the most humid month.

Rainfall

In Gustavus, during August, the rain falls for 16.8 days and regularly aggregates up to 3.39" (86mm) of precipitation. In Gustavus, Alaska, during the entire year, the rain falls for 182.7 days and collects up to 37.4" (950mm) of precipitation.

Snowfall

May through September are months without snowfall in Gustavus.

Daylight

The average length of the day in August is 15h and 18min.
On the first day of the month, sunrise is at 4:54 am and sunset at 9:23 pm. On the last day of August, in Gustavus, sunrise is at 6:00 am and sunset at 8:05 pm AKDT.

Sunshine

In Gustavus, the average sunshine in August is 5.6h.

UV index

In Gustavus, the average daily maximum UV index in August is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 3 in August transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 temperature in August in Gustavus?

In Gustavus, Alaska, in August, the average high-temperature is 56.5°F (13.6°C), and the average low-temperature is 48.9°F (9.4°C).

What is the most humid month in Gustavus?

With an average relative humidity of 90%, August is the most humid month in Gustavus, Alaska.

What is the average humidity in August in Gustavus?

In August, the average relative humidity is 90%.

How much does it rain in Gustavus in August?

In Gustavus, Alaska, in August, during 16.8 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

When it does not snow in Gustavus?

May through September are months without snowfall in Gustavus.

What is the average length of the day in August in Gustavus?

The average day length in August in Gustavus, Alaska, is 15h and 18min.

What time are sunrise and sunset in August in Gustavus?

In August, on the first day of the month, sunrise is at 4:54 am and sunset at 9:23 pm. On the last day of the month, in Gustavus, sunrise is at 6:00 am and sunset at 8:05 pm AKDT.

How many hours of sunshine does Gustavus have in August?

In August, the average sunshine duration in Gustavus is 5.6h.

What is the UV index intensity in August in Gustavus?

The average daily maximum UV index in August is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe 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 August
Gustavus, AK

Average temperature in August - Gustavus, AK
  • Average high temperature in August: 56.5°F

The warmest month (with the highest average high temperature) is July (57.2°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in August: 48.9°F

The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).

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Average pressure in August
Gustavus, AK

Average pressure in August - Gustavus, AK
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.77"Hg).

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Average wind speed in August
Gustavus, AK

Average wind speed in August - Gustavus, AK
  • Average wind speed in August: 4.3mph

The windiest month (with the highest average wind speed) is January (7mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).

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Average humidity in August
Gustavus, AK

Average humidity in August - Gustavus, AK
  • Average humidity in August: 90%

The month with the highest relative humidity is August (90%).
The month with the lowest relative humidity is November (84%).

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Average rainfall in August
Gustavus, AK

Average rainfall in August - Gustavus, AK
  • Average rainfall in August: 3.39"

The wettest months (with the highest rainfall) are October and November (4.21").
The driest month (with the least rainfall) is May (1.61").

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Average rainfall days in August
Gustavus, AK

Average rainfall days in August - Gustavus, AK
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (8.2 days).

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Average snowfall in August
Gustavus, AK

Average snowfall in August - Gustavus, AK
  • Average snowfall in August: 0"

The month with the highest snowfall is January (11.22").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Gustavus, AK

Average snowfall days in August - Gustavus, AK
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Gustavus, AK

Average daylight in August / Average sunshine in August - Gustavus, AK
  • Average daylight in August: 15h and 18min

The month with the longest days is June (Average daylight: 18h and 11min).
The month with the shortest days is December (Average daylight: 6h and 29min).

  • Average sunshine in August: 5h and 36min

The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).

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Average sunshine days in August
Gustavus, AK

Average sunshine days in August - Gustavus, AK
  • Average sunshine days in August: 11.5 days

The months with the most sunshine days are February and May (12.5 days).
The month with the least sunshine days is June (7.7 days).

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Average UV index in August
Gustavus, AK

Average UV index in August - Gustavus, AK
  • Average UV index in August: 3

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in August
Gustavus, AK

Average cloud cover in August - Gustavus, AK
  • Average cloud cover in August: 67

The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).

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Average visibility in August
Gustavus, AK

Average visibility in August - Gustavus, AK
  • Average visibility in August: 4mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
The months with the lowest visibility are July and August (4mi).

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