August weather forecast
Kenai, AK

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High rock cliffs of the scenic Spire Cove in Fjords National Park in Kenai, Alaska
High rock cliffs of the scenic Spire Cove in Fjords National Park in Kenai, Alaska

Weather in August

In August, nature continues its warm embrace, albeit with slightly cooler temperatures compared to July. Precipitation levels see a spike, recording at 2.01" (51mm) from the previous month's 1.42" (36mm). The rainfall, coupled with reduced sunshine hours, signals an imminent change in season, yet the weather remains amiable. While the wind gustmph shows a minimal increment, the overall conditions stay consistent. August concludes the summer months by offering a favorable weather mix for outdoor ventures.

Temperature

August's climate shows a minor adjustment in average high-temperatures to a moderate 59.7°F (15.4°C) from July's 61.3°F (16.3°C). In Kenai, the month of August brings a consistent average low-temperature of 50.7°F (10.4°C), slightly cooler than its daytime highs.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Kenai, during August, the rain falls for 15.8 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 136.3 rainfall days, and 19.49" (495mm) of precipitation is accumulated.

Snowfall

May through August are months without snowfall.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 53.4°F (11.9°C).
Note: Diving into 53.4°F (11.9°C) is practical below 50°F (10°C), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 55.4°F (13°C) feels ice-cold.

Daylight

The average length of the day in August is 15h and 37min.
On the first day of August, sunrise is at 5:44 am and sunset at 10:37 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 9:11 pm AKDT.

Sunshine

In August, the average sunshine is 8.7h.

UV index

In Kenai, the average daily maximum UV index in August is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 3 during August translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What are August temperatures?

August temperatures vary between a high-temperature of 59.7°F (15.4°C) and a low-temperature of 50.7°F (10.4°C).

What is the average humidity in August?

The average relative humidity in August is 79%.

How many days does it rain in August?

In Kenai, in August, it is raining for 15.8 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow?

May through August are months without snowfall.

Does it snow in August?

In Kenai, in August, it doesn't snow. In September, it regularly snows.

What is the month with the warmest ocean?

With an average ocean temperature of 53.4°F (11.9°C), August is the month with the warmest seawater.

What is the ocean temperature in August?

In Kenai, in August, the average water temperature is 53.4°F (11.9°C). Swimming in 53.4°F (11.9°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.

How many hours of daylight does Kenai have in August?

In August, the average day length is 15h and 37min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:44 am and sunset at 10:37 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 9:11 pm AKDT.

How long on average sun shines in August?

In August, the average sunshine duration is 8.7h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 3. A UV Index estimate of 3 to 5 represents a medium health risk 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
Kenai, AK

Average temperature in August - Kenai, AK
  • Average high temperature in August: 59.7°F

The warmest month (with the highest average high temperature) is July (61.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in August: 50.7°F

The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in August
Kenai, AK

Average pressure in August - Kenai, 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 (29.64"Hg).

Average wind speed in August
Kenai, AK

Average wind speed in August - Kenai, AK
  • Average wind speed in August: 6.7mph

The windiest month (with the highest average wind speed) is December (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in August
Kenai, AK

Average humidity in August - Kenai, AK
  • Average humidity in August: 79%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (69%).

Average rainfall in August
Kenai, AK

Average rainfall in August - Kenai, AK
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is October (2.87").
The driest month (with the least rainfall) is June (0.91").

Average rainfall days in August
Kenai, AK

Average rainfall days in August - Kenai, AK
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is September (16.6 days).
The month with the least rainy days is February (5.5 days).

Average snowfall in August
Kenai, AK

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

The month with the highest snowfall is December (8.74").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in August
Kenai, AK

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

The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).

Average sea temperature in August
Kenai, AK

Average sea temperature in August - Kenai, AK
  • Average sea temperature in August: 53.4°F

The best month for swimming (with the highest average sea temperature) is August (53.4°F).
The coldest month (with the lowest average sea temperature) is February (34.2°F).

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

Average daylight in August / Average sunshine in August - Kenai, AK
  • Average daylight in August: 15h and 4min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in August: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).

Average sunshine days in August
Kenai, AK

Average sunshine days in August - Kenai, AK
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is June (16.6 days).
The month with the least sunshine days is September (11.5 days).

Average UV index in August
Kenai, AK

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

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

Average cloud cover in August
Kenai, AK

Average cloud cover in August - Kenai, AK
  • Average cloud cover in August: 50

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 44).

Average visibility in August
Kenai, AK

Average visibility in August - Kenai, AK
  • Average visibility in August: 6mi

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

Kenai, Alaska, USA

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