Climateby Month

Seward, AK weather in August

NOAA 1991-2020 normals and daily records · Seward all year

Expect cool weather with rain on most days in Seward in August, with highs near 62°F and lows near 50°F. Rain falls on about 15 days. Even so, it is one of the warmest months in Seward. Pack rain gear.

Normal high
62°F
Normal low
50°F
Wet days
15
5.4 in total
Daylight
15.6 h

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high63°F60°F
Normal low51°F47°F
Chance of a wet day48%53%
Sunrise / sunset5:38 am / 10:29 pm6:50 am / 9:05 pm
Daylight16.9 h14.3 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Alaska Time).

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)9 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain (temperature and rain only)0 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow15 of 31
  • Notable rainat least 0.10 in10 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per August, counted from daily records for each year 1991-2020.

Rain in August

Normal precipitation is 5.4 in; a dry August brings about 3.3 in and a wet one about 7.2 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 1 an inch or more.

How August varies from year to year

  • Warmest August, 1991-20202019: average high 70°F
  • Coolest August1992: average high 57°F
  • Wettest August1993: 12.2 in
  • Driest August2008: 1.4 in
  • Highest reading86°F (August 16, 2019)
  • Lowest reading38°F (August 28, 1998)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

August compared with July and September

JulyAugustSeptember
Normal high62°F62°F56°F
Normal low50°F50°F43°F
Wet days131517
Comfortable days792
Daylight18.0 h15.6 h12.8 h

Highs change by 0°F from July and -6°F into September.

How Seward ranks in August

  • Normal high376th warmest of 378 cities; 6th of 8 in Alaska
  • Wet days356th driest of 378

What to pack for Seward in August

  • A rain jacket or umbrella – rain on about 15 days

Heating and cooling

August has 288 heating degree days and 2 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.

Questions

How cold is Seward in August?

The normal high is 62°F and the normal low is 50°F. From 1991 to 2020 the coldest August reading was 38°F (August 28, 1998).

Does it rain a lot in Seward in August?

About 15 days in August have at least 0.01 in of precipitation, and the normal total is 5.4 in. The wettest August in 1991-2020 was in 1993 (12.2 in); the driest was in 2008 (1.4 in).

Is August a good time to visit Seward?

August ranks 1st of 12 months on our comfort score for Seward (64 out of 100). It has about 9 comfortable days (judged by temperature only). The best months are June, July and August.

Where the numbers come from

  • Temperature, rain and frost dates: Seward Airport (USW00026438), 1.9 mi NNE of the city center, 22 ft (67 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Seward 19N (USC00508377), 18 mi N of the city center, 518 ft (429 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).