August weather forecast
Port Heiden, AK

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Weather in August

The last month of the summer, August, is another refreshing month in Port Heiden, Alaska, with an average temperature fluctuating between 56.8°F (13.8°C) and 49.1°F (9.5°C).

Temperature

The highest temperatures are recorded in August, with averages reaching a high of 56.8°F (13.8°C) and a low of 49.1°F (9.5°C).

Humidity

The average relative humidity in August is 86%.

Rainfall

In Port Heiden, during August, the rain falls for 17.5 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, there are 160.7 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Port Heiden, the average length of the day in August is 15h and 7min.
On the first day of August in Port Heiden, sunrise is at 6:35 am and sunset at 10:45 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 9:32 pm AKDT.

Sunshine

In August, the average sunshine in Port Heiden is 5.6h.

UV index

May through September, with an average maximum UV index of 3, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In August, a daily maximum UV index of 3 leads to the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What part of the year is the hottest in Port Heiden?

In Port Heiden, August is the warmest month, with temperatures averaging a high of 56.8°F (13.8°C) and a low of 49.1°F (9.5°C).

What are August temperatures in Port Heiden?

The high-temperature during August is 56.8°F (13.8°C) and the low-temperature is 49.1°F (9.5°C).

What is the average humidity in August in Port Heiden?

In Port Heiden, the average relative humidity in August is 86%.

How much does it rain in Port Heiden in August?

In August, in Port Heiden, Alaska, the rain falls for 17.5 days. Throughout August, 1.46" (37mm) of precipitation is accumulated.

When it does not snow in Port Heiden?

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

Does it snow in Port Heiden in August?

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

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

In August, the average day length in Port Heiden, Alaska, is 15h and 7min.

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

In August, on the first day of the month, sunrise is at 6:35 am and sunset at 10:45 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 9:32 pm AKDT.

How long on average sun shines in August in Port Heiden?

In Port Heiden, Alaska, the average sunshine duration in August is 5.6h.

When is the highest UV index in Port Heiden?

May through September, with an average maximum UV index of 3, are months with the highest UV index in Port Heiden, Alaska.

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

In Port Heiden, the average daily maximum UV index in August is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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 Heiden, AK

Average temperature in August - Port Heiden, AK
  • Average high temperature in August: 56.8°F

The warmest month (with the highest average high temperature) is August (56.8°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in August: 49.1°F

The month with the highest average low temperature is August (49.1°F).
The coldest months (with the lowest average low temperature) are January and March (23.4°F).

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Average pressure in August
Port Heiden, AK

Average pressure in August - Port Heiden, AK
  • Average pressure in August: 29.87"Hg

The month with the highest atmospheric pressure is July (29.97"Hg).
The month with the lowest atmospheric pressure is December (29.54"Hg).

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Average wind speed in August
Port Heiden, AK

Average wind speed in August - Port Heiden, AK
  • Average wind speed in August: 10.7mph

The windiest month (with the highest average wind speed) is December (14.8mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).

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Average humidity in August
Port Heiden, AK

Average humidity in August - Port Heiden, AK
  • Average humidity in August: 86%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (78%).

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Average rainfall in August
Port Heiden, AK

Average rainfall in August - Port Heiden, AK
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is June (0.83").

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Average rainfall days in August
Port Heiden, AK

Average rainfall days in August - Port Heiden, AK
  • Average rainfall days in August: 17.5 days

The month with the highest number of rainy days is September (19.2 days).
The month with the least rainy days is March (7.6 days).

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Average snowfall in August
Port Heiden, AK

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

The month with the highest snowfall is December (5.71").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Port Heiden, AK

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

The month with the highest number of snowfall days is December (15.1 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 Heiden, AK

Average daylight in August / Average sunshine in August - Port Heiden, AK
  • Average daylight in August: 15h and 1min

The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 54min).

  • Average sunshine in August: 5h and 4min

The month with the most sunshine is May (Average sunshine: 7h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).

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Average sunshine days in August
Port Heiden, AK

Average sunshine days in August - Port Heiden, AK
  • Average sunshine days in August: 10 days

The month with the most sunshine days is May (13 days).
The month with the least sunshine days is November (6 days).

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Average UV index in August
Port Heiden, AK

Average UV index in August - Port Heiden, AK
  • Average UV index in August: 3

The months with the highest UV index are May, June, July, August and September (UV index 3).
The months with the lowest UV index are February, March, November and December (UV index 1).

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Average cloud cover in August
Port Heiden, AK

Average cloud cover in August - Port Heiden, AK
  • Average cloud cover in August: 67

The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is May (Cloud cover 59).

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Average visibility in August
Port Heiden, AK

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

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).

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Port Heiden, Alaska, USA

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