August weather forecast
Seward, AK

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The busy Small Boat Harbor in Seward City, Alaska
The busy Small Boat Harbor in Seward City, Alaska

Weather in August

The weather in August starts hinting at the impending departure of summer. A noticeable dip in temperature down to 55.6°F (13.1°C) from the July peak, signals the commencement of autumn’s preamble. This gentle cool off coupled with a heightened rainfall of 3.94" (100mm) gives Seward a new refreshingly cool look. Despite the decreasing temperature, sea temperatures remain relatively stable instigating marine life activities. Nonetheless, the month ends on a gentle note, providing a seamless transition to fall.

Temperature

As August takes its course, Seward's average high-temperature registers at a still refreshing 55.6°F (13.1°C), closely aligning with the preceding month. In Seward, the month of August brings a consistent average low-temperature of 46.9°F (8.3°C), slightly cooler than its daytime highs.

Humidity

The average relative humidity in August is 83%.

Rainfall

In Seward, during August, the rain falls for 19 days and regularly aggregates up to 3.94" (100mm) of precipitation. Throughout the year, there are 166.9 rainfall days, and 56.06" (1424mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 55.9°F (13.3°C).
Note: Caution: 55.9°F (13.3°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.

Daylight

In August, the average length of the day is 15h and 32min.
On the first day of the month, sunrise is at 5:40 am and sunset at 10:27 pm. On the last day of August, sunrise is at 6:52 am and sunset at 9:03 pm AKDT.

Sunshine

In Seward, the average sunshine in August is 8.2h.

UV index

In August, the average daily maximum UV index 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: During August, 3 as the daily maximum UV index converts into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The high-temperature, in August, in Seward, records 55.6°F (13.1°C), while the low-temperature is 46.9°F (8.3°C).

What is the average humidity in August?

In August, the average relative humidity is 83%.

How many days does it rain in August?

In August, the rain falls for 19 days. Throughout August, 3.94" (100mm) of precipitation is accumulated.

When it does not snow?

In Seward, snow does not fall in June through September.

What month is the ocean warmest?

With an average ocean temperature of 55.9°F (13.3°C), August is the month with the warmest seawater.

What is the ocean temperature in August in Seward?

In Seward, in August, the average water temperature is 55.9°F (13.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Seward have in August?

In Seward, the average day length in August is 15h and 32min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:40 am and sunset at 10:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 9:03 pm AKDT.

How long on average sun shines in August in Seward?

In Seward, the average sunshine duration in August is 8.2h.

What is the UV index intensity in August?

In Seward, Alaska, the average daily maximum UV index in August is 3. A UV Index of 3 to 5 symbolizes a medium health risk 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
Seward, AK

Average temperature in August - Seward, AK
  • Average high temperature in August: 55.6°F

The warmest month (with the highest average high temperature) is July (56.8°F).
The month with the lowest average high temperature is January (24.6°F).

  • Average low temperature in August: 46.9°F

The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in August
Seward, AK

Average pressure in August - Seward, AK
  • Average pressure in August: 29.86"Hg

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is November (29.61"Hg).

Average wind speed in August
Seward, AK

Average wind speed in August - Seward, AK
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is November (8.9mph).
The calmest month (with the lowest average wind speed) is June (4.8mph).

Average humidity in August
Seward, AK

Average humidity in August - Seward, AK
  • Average humidity in August: 83%

The months with the highest relative humidity are March, April and December (87%).
The month with the lowest relative humidity is June (80%).

Average rainfall in August
Seward, AK

Average rainfall in August - Seward, AK
  • Average rainfall in August: 3.94"

The wettest month (with the highest rainfall) is December (7.64").
The driest month (with the least rainfall) is June (2.09").

Average rainfall days in August
Seward, AK

Average rainfall days in August - Seward, AK
  • Average rainfall days in August: 19 days

The month with the highest number of rainy days is August (19 days).
The month with the least rainy days is February (7.6 days).

Average snowfall in August
Seward, AK

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

The month with the highest snowfall is February (18.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Seward, AK

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

The month with the highest number of snowfall days is March (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in August
Seward, AK

Average sea temperature in August - Seward, AK
  • Average sea temperature in August: 56°F

The best month for swimming (with the highest average sea temperature) is August (56°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

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

Average daylight in August / Average sunshine in August - Seward, AK
  • Average daylight in August: 15h and 3min

The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).

  • Average sunshine in August: 8h and 1min

The month with the most sunshine is June (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 6min).

Average sunshine days in August
Seward, AK

Average sunshine days in August - Seward, AK
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is January (13.8 days).
The month with the least sunshine days is September (10.6 days).

Average UV index in August
Seward, AK

Average UV index in August - Seward, 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, October, November and December (UV index 1).

Average cloud cover in August
Seward, AK

Average cloud cover in August - Seward, AK
  • Average cloud cover in August: 53

The month with the most cloud cover is December (Cloud cover 55).
The months with the least cloud cover are March and November (Cloud cover 50).

Average visibility in August
Seward, AK

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

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

Seward, Alaska, USA

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