July weather forecast and climate
Port Heiden, AK

Weather in July

July is a moderate summer month in Port Heiden, Alaska, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 55.9°F (13.3°C).

Temperature

In July, the average high-temperature is practically the same as in June - a moderate 55.9°F (13.3°C). The average low-temperature, in Port Heiden, Alaska, is 48.2°F (9°C).

Humidity

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

Rainfall

In Port Heiden, in July, it is raining for 17.3 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, in Port Heiden, there are 160.7 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Snowfall

June through August are months without snowfall.

Daylight

The average length of the day in Port Heiden is 17.1h.

Sunshine

The average sunshine in July is 6.1h.

UV index

May through September, with an average maximum UV index of 3, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in July in Port Heiden?

The average high-temperature, in July, in Port Heiden, Alaska, is 55.9°F (13.3°C), while the average low-temperature is 48.2°F (9°C).

What is the average humidity in July in Port Heiden?

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

How much does it rain in Port Heiden in July?

In July, in Port Heiden, Alaska, the rain falls for 17.3 days. Throughout July, 1.22" (31mm) of precipitation is accumulated.

When it does not snow in Port Heiden?

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

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

In Port Heiden, Alaska, the average length of the day in July is 17.1h.

How many hours of sunshine does Port Heiden have in July?

The average sunshine in July in Port Heiden, Alaska, is 6.1h.

What is the month with 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.

How high is the UV index in July in Port Heiden?

The average daily maximum UV index in July in Port Heiden is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in July
Port Heiden, AK

Average temperature in July - Port Heiden, AK
  • Average high temperature in July: 55.9°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 July: 48.2°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 July
Port Heiden, AK

Average pressure in July - Port Heiden, AK
  • Average pressure in July: 29.97"

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

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Average wind speed in July
Port Heiden, AK

Average wind speed in July - Port Heiden, AK
  • Average wind speed in July: 9.1mph

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 July
Port Heiden, AK

Average humidity in July - Port Heiden, AK
  • Average humidity in July: 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 July
Port Heiden, AK

Average rainfall in July - Port Heiden, AK
  • Average rainfall in July: 1.22"

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 July
Port Heiden, AK

Average rainfall days in July - Port Heiden, AK
  • Average rainfall days in July: 17.3 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 July
Port Heiden, AK

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

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

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Average snowfall days in July
Port Heiden, AK

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

The month with the highest number of snowfall days is December (15.1 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight in July /
Average sunshine in July
Port Heiden, AK

Average daylight in July / Average sunshine in July - Port Heiden, AK
  • Average daylight in July: 17.1h

The month with the longest days is June (Average daylight: 17.8h).
The month with the shortest days is December (Average daylight: 6.8h).

  • Average sunshine in July: 6.1h

The month with the most sunshine is May (Average sunshine: 7.7h).
The month with the least sunshine is December (Average sunshine: 2.4h).

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Average sunshine days in July
Port Heiden, AK

Average sunshine days in July - Port Heiden, AK
  • Average sunshine days in July: 10.7 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 July
Port Heiden, AK

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

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

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Average cloud cover in July
Port Heiden, AK

Average cloud cover in July - Port Heiden, AK
  • Average cloud cover in July: 69

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 July
Port Heiden, AK

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

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

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