August weather forecast
Port Graham, AK

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Weather in August

August, the last month of the summer in Port Graham, is also a moderate month, with an average temperature fluctuating between 50.4°F (10.2°C) and 55.9°F (13.3°C).

Temperature

The warmest period is usually observed in July and August, with the average high-temperature peaking at 55.9°F (13.3°C).

Humidity

July and August, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Port Graham, during August, the rain falls for 16.7 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 179.8 rainfall days, and 36.57" (929mm) of precipitation is accumulated.

Snowfall

In Port Graham, snow does not fall in June through August.

Daylight

The average length of the day in August is 15h and 26min.
On the first day of August, sunrise is at 5:54 am and sunset at 10:32 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 9:10 pm AKDT.

Sunshine

In August, the average sunshine is 7.9h.

UV index

In Port Graham, the average daily maximum UV index in August is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In August, a daily maximum UV index of 3 leads to the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the warmest month in Port Graham?

The yearly peak temperatures in Port Graham occur in July and August, averaging a high-temperature of 55.9°F (13.3°C).

What are August temperatures in Port Graham?

The high-temperature, in August, in Port Graham, records 55.9°F (13.3°C), while the low-temperature is 50.4°F (10.2°C).

What are the most humid months in Port Graham?

The months with the highest humidity in Port Graham are July and August, with an average relative humidity of 84%.

What is the average humidity in August in Port Graham?

In Port Graham, the average relative humidity in August is 84%.

How much does it rain in Port Graham in August?

In Port Graham, Alaska, during August, the rain falls for 16.7 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Port Graham?

In Port Graham, snow does not fall in June through August.

Does it snow in Port Graham in August?

In Port Graham, Alaska, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Port Graham have in August?

In Port Graham, Alaska, the average day length in August is 15h and 26min.

When is the sunrise / sunset in August in Port Graham?

On the first day of August in Port Graham, sunrise is at 5:54 am and sunset at 10:32 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 9:10 pm AKDT.

How many hours of sunshine does Port Graham have in August?

In August, the average sunshine duration is 7.9h.

What is the UV index reading in August in Port Graham?

The average daily maximum UV index in August in Port Graham is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Port Graham, AK

Average temperature in August - Port Graham, AK
  • Average high temperature in August: 55.9°F

The warmest months (with the highest average high temperature) are July and August (55.9°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 50.4°F

The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in August
Port Graham, AK

Average pressure in August - Port Graham, AK
  • Average pressure in August: 29.85"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.6"Hg).

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Average wind speed in August
Port Graham, AK

Average wind speed in August - Port Graham, AK
  • Average wind speed in August: 7.3mph

The windiest month (with the highest average wind speed) is December (12.2mph).
The calmest month (with the lowest average wind speed) is June (6.2mph).

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Average humidity in August
Port Graham, AK

Average humidity in August - Port Graham, AK
  • Average humidity in August: 84%

The months with the highest relative humidity are July and August (84%).
The months with the lowest relative humidity are May and November (78%).

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Average rainfall in August
Port Graham, AK

Average rainfall in August - Port Graham, AK
  • Average rainfall in August: 2.83"

The wettest month (with the highest rainfall) is December (5.2").
The driest month (with the least rainfall) is June (1.38").

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Average rainfall days in August
Port Graham, AK

Average rainfall days in August - Port Graham, AK
  • Average rainfall days in August: 16.7 days

The month with the highest number of rainy days is September (18.8 days).
The month with the least rainy days is February (9 days).

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Average snowfall in August
Port Graham, AK

Average snowfall in August - Port Graham, AK
  • Average snowfall in August: 0"

The month with the highest snowfall is February (8.98").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Port Graham, AK

Average snowfall days in August - Port Graham, AK
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in August /
Average sunshine in August
Port Graham, AK

Average daylight in August / Average sunshine in August - Port Graham, AK
  • Average daylight in August: 15h and 2min

The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).

  • Average sunshine in August: 7h and 5min

The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).

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Average sunshine days in August
Port Graham, AK

Average sunshine days in August - Port Graham, AK
  • Average sunshine days in August: 13.5 days

The month with the most sunshine days is July (13.7 days).
The month with the least sunshine days is December (7.5 days).

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Average UV index in August
Port Graham, AK

Average UV index in August - Port Graham, 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 January, February, March, April, May, October, November and December (UV index 2).

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Average cloud cover in August
Port Graham, AK

Average cloud cover in August - Port Graham, AK
  • Average cloud cover in August: 52

The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 51).

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Average visibility in August
Port Graham, AK

Average visibility in August - Port Graham, AK
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Port Graham, Alaska, USA

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