Tukwila climate

Tukwila Weather in August

NOAA 1991-2020 normals for Seattle Tacoma Intl AP, 5.2 km from Tukwila

Average highs run from 79°F on August 1 to 76°F on August 31, and lows from 58°F to 56°F. Normal precipitation for the month is 0.97 in over about 5 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Tukwila, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
78°F
Average low
57°F
Precipitation
0.97 in
Record high
98°FAug 16, 2020
Record low
47°FAug 24, 2003
Chance of a freeze
0%
Days of 90°F or more
1.2
Daylight
14 h 56 min to 13 h 24 min
Cloud cover
48%
Humidity
76%
Dew point
56°F
Wind
3.6 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 179°F58°F91°F 201550°F 200214%0%
Aug 279°F58°F91°F 200952°F 200514%0%
Aug 379°F58°F92°F 201750°F 200214%0%
Aug 479°F58°F94°F 201754°F 200714%0%
Aug 579°F58°F93°F 201252°F 200614%0%
Aug 679°F58°F87°F 201854°F 200214%0%
Aug 779°F58°F90°F 201852°F 200214%0%
Aug 879°F58°F93°F 201852°F 200214%0%
Aug 979°F58°F92°F 200451°F 202014%0%
Aug 1078°F58°F89°F 202555°F 202014%0%
Aug 1178°F58°F93°F 201450°F 200715%0%
Aug 1278°F58°F93°F 202150°F 200015%0%
Aug 1378°F58°F93°F 202150°F 202015%0%
Aug 1478°F58°F93°F 201051°F 200015%0%
Aug 1578°F57°F94°F 202352°F 200015%0%
Aug 1678°F57°F98°F 202050°F 200015%0%
Aug 1778°F57°F93°F 202351°F 200016%0%
Aug 1878°F57°F87°F 201652°F 200216%0%
Aug 1977°F57°F93°F 201653°F 200216%0%
Aug 2077°F57°F92°F 201651°F 200117%0%
Aug 2177°F57°F89°F 201852°F 200017%0%
Aug 2277°F57°F89°F 201852°F 201518%0%
Aug 2377°F57°F90°F 202551°F 200318%0%
Aug 2477°F57°F89°F 202547°F 200318%0%
Aug 2577°F57°F91°F 202251°F 200119%0%
Aug 2676°F57°F91°F 201652°F 200919%0%
Aug 2776°F56°F90°F 200951°F 200920%0%
Aug 2876°F56°F88°F 200248°F 200020%0%
Aug 2976°F56°F88°F 201749°F 201021%0%
Aug 3076°F56°F88°F 202250°F 202021%0%
Aug 3176°F56°F88°F 202248°F 200621%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Tukwila, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:47 AM, sunset 8:43 PM
August 31
sunrise 6:27 AM, sunset 7:51 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024233 (Seattle Tacoma Intl AP), public domain. Records: NOAA GHCN-Daily, station USW00094248, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.