Spanaway weather in August

In August, Spanaway sees average daytime highs of 74°F and overnight lows near 54°F, with 1.0 in of rain across 4 wet days and about 14 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 76°F in the first days to 72°F by the end. The sky is clear or mostly clear about 48% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 48 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Spanaway's 2nd-clearest and 11th-windiest month. For the whole year in context, see Spanaway's year-round climate.

Daytime high
74°
1st warmest
Overnight low
54°
12th coldest
Rainfall
1.0 in
4 wet days
Daylight
14 h 06 min
5:12 AM – 7:15 PM
Cloud cover
43%
2nd clearest
Wind
5 mph
11th windiest
Solar energy
5.57 kWh/m²
Travel score
8.2
out of 10

Spanaway is census designated place in Pierce County, Washington, United States.

Density
1,149/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 76°F in the first days to 72°F by the end.

A typical August day in Spanaway reaches about 74°F in the afternoon and slips back to 54°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 83°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17655
27655
37655
47655
57555
67555
77555
87555
97555
107555
117555
127555
137555
147555
157555
167455
177455
187455
197454
207454
217454
227454
237354
247354
257354
267354
277353
287353
297253
307253
317253

How August really feels in Spanaway

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Spanaway weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan45° / 37°7.417.93.88.70.9
Feb48° / 37°5.314.73.1101.4
Mar52° / 38°6.118.12.411.62.1
Apr56° / 42°4.715.80.413.33.3
May63° / 47°3.111.5014.85.2
Jun67° / 51°2.18.5015.66.3
Jul74° / 54°0.73.7015.38.1
Aug74° / 54°1.040148.2
Sep68° / 51°2.37.2012.46.9
Oct58° / 45°5.013.2010.64.1
Nov49° / 39°8.118.11.19.11.7
Dec44° / 36°7.617.33.58.40.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37129
47129
56931
66931
76931
86733
96733
106733
116634
126634
136535
146535
156535
166436
176436
186436
196436
206238
216238
226238
236139
246139
256139
266139
276139
286139
296040
306040
316040

Chance of precipitation in August

Any precipitation

Spanaway gets around 1.0 in of rain over 4 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 18% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
19
29
39
410
510
611
711
811
911
1011
1112
1212
1312
1412
1512
1612
1712
1812
1913
2013
2114
2214
2315
2415
2516
2616
2717
2817
2918
3018
3118

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
167312
266322
365332
465332
564342
663352
763361
862371
961372
1060382
1160382
1261372
1361372
1462362
1563352
1664342
1765332
1866322
1967312
2068302
2169292
2269292
2371281
2472271
2572271
2673261
2773261
2874251
2974251
3074251
3174251

Wind in August

Winds average 5 mph in August.

Across August, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 48 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 4:53 AM to 5:32 AM, and sunset from 7:39 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:537:39
214.74:547:37
314.74:557:36
414.64:577:35
514.64:587:33
614.54:597:32
714.55:007:30
814.45:027:29
914.45:037:27
1014.45:047:26
1114.35:067:24
1214.35:077:22
1314.25:087:21
1414.25:107:19
1514.15:117:17
1614.15:127:15
1714.05:147:14
1813.95:157:12
1913.95:167:10
2013.85:187:08
2113.85:197:06
2213.75:207:05
2313.75:227:03
2413.65:237:01
2513.65:246:59
2613.55:266:57
2713.55:276:55
2813.45:286:53
2913.45:306:51
3013.35:316:49
3113.25:326:47

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.57 kWh/m².

For context, solar energy here swings from a low near 0.91 kWh/m² to a high of 6.34 kWh/m² in July across the year — August's 5.57 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.1Intense
66.1Intense
76.0Intense
86.0Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.1Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
314.9Bright
Planning a trip in August

Hazard calendar for Spanaway

In seasonPeak

None of Spanaway's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Spanaway's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Spanaway?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.2
Sightseeing
1st-best month of the year
6.6
Beach & pool
1st-best month of the year

August is one of the better times to visit Spanaway for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Spanaway in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Spanaway sees daytime highs around 74°F and nights near 54°F. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Spanaway in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Spanaway peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7Very high
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Spanaway in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Spanaway is worst in September — around 22 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodSep 1322 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar12Moderate
Apr12Good
May11Good
Jun10Good
Jul10Good
Aug18Moderate
Sep22Moderate
Oct12Good
Nov8Good
Dec7Good
Location & terrain

Where is Spanaway?

Spanaway sits at 47.1°N, 122.4°W, 381 ft above sea level, in United States. The nearest listed city is Parkland, 3.7 mi away.

Topography around Spanaway

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Spanaway.

Within 2 miles, the terrain around Spanaway has only modest variations in elevation — a maximum elevation change of 226 ft around an average of 377 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 974 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 14,403 ft.

The land around Spanaway is covered by trees (62%) within 2 miles, trees (56%) and grassland (23%) within 10 miles, and trees (78%) within 50 miles.

2 miles
226 ft
10 miles
974 ft
50 miles
14,403 ft
treesgrasslandartificial surfaceswater
August weather nearby: Parkland 3.7 mi · Frederickson 3.7 mi · Lakewood 6.2 mi · Graham 7.5 mi · South Hill 8.1 mi · Puyallup 8.7 mi · Tacoma 11 mi · University Place 11 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Spanaway (47.104°, -122.4346°, elevation 381 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).