August weather forecast
Nikiski, AK

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Weather in August

The last month of the summer, August, is another mild month in Nikiski, Alaska, with an average temperature ranging between max 59.7°F (15.4°C) and min 50.7°F (10.4°C).

Temperature

Nikiski marks the start of August with an average high-temperature of a mild 59.7°F (15.4°C), hinting at a slight fluctuation from July's 61.3°F (16.3°C). Nikiski encounters an average temperature dip to a fresh 50.7°F (10.4°C) throughout August, subtly lower than its daytime maximum.

Humidity

In Nikiski, the average relative humidity in August is 79%.

Rainfall

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

Snowfall

In Nikiski, Alaska, snow does not fall in May through August.

Daylight

In August, the average length of the day is 15h and 38min.
On the first day of the month, sunrise is at 5:43 am and sunset at 10:38 pm. On the last day of August, sunrise is at 6:58 am and sunset at 9:11 pm AKDT.

Sunshine

In Nikiski, the average sunshine in August is 8.7h.

UV index

In August, the average daily maximum UV index in Nikiski is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 3 in August translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature, in August, in Nikiski, records 59.7°F (15.4°C), while the low-temperature is 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 August, the rain falls for 15.8 days. Throughout August, 2.01" (51mm) of precipitation is accumulated.

When it does not snow?

May through August are months without snowfall.

Does it snow in August?

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

What is the average length of the day in August?

The average day length in August is 15h and 38min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:43 am and sunset at 10:38 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 reading in August?

In August, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Nikiski, AK

Average temperature in August - Nikiski, 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
Nikiski, AK

Average pressure in August - Nikiski, 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
Nikiski, AK

Average wind speed in August - Nikiski, 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
Nikiski, AK

Average humidity in August - Nikiski, 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
Nikiski, AK

Average rainfall in August - Nikiski, 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
Nikiski, AK

Average rainfall days in August - Nikiski, 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
Nikiski, AK

Average snowfall in August - Nikiski, 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
Nikiski, AK

Average snowfall days in August - Nikiski, 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 daylight in August /
Average sunshine in August
Nikiski, AK

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

The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).

  • 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
Nikiski, AK

Average sunshine days in August - Nikiski, 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
Nikiski, AK

Average UV index in August - Nikiski, 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
Nikiski, AK

Average cloud cover in August - Nikiski, 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
Nikiski, AK

Average visibility in August - Nikiski, 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).

Nikiski, Alaska, USA

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