South Hill weather in September

In September, South Hill sees average daytime highs of 68°F and overnight lows near 52°F, with 2.5 in of rain across 8.1 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 71°F in the first days to 64°F by the end. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is South Hill's 3rd-clearest and 10th-windiest month. For the whole year in context, see South Hill's year-round climate.

Daytime high
68°
3rd warmest
Overnight low
52°
10th coldest
Rainfall
2.5 in
8.1 wet days
Daylight
12 h 18 min
5:53 AM – 6:13 PM
Cloud cover
47%
3rd clearest
Wind
5 mph
10th windiest
Solar energy
4.09 kWh/m²
Travel score
6.7
out of 10

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

Density
1,098/km²
people per km²

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 71°F in the first days to 64°F by the end.

A typical September day in South Hill reaches about 68°F in the afternoon and slips back to 52°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 60°F and 76°F. Set against its neighbours, September runs about 6°F cooler than August and about 10°F warmer than October.

40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
17155
27154
37154
47054
57054
67054
77054
86954
96953
106953
116953
126953
136853
146853
156853
166752
176752
186752
196752
206752
216651
226651
236651
246551
256551
266550
276550
286450
296450
306449

How September really feels in South Hill

Once humidity and wind are folded in, September 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

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

South Hill weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan45° / 37°7.518.25.68.70.7
Feb47° / 37°5.214.84.6101.2
Mar50° / 39°6.017.8511.61.9
Apr55° / 42°4.615.81.813.33.0
May62° / 47°3.111.90.214.84.9
Jun66° / 52°2.39.2015.66.2
Jul73° / 56°0.84.1015.38.0
Aug73° / 56°1.14.50148.0
Sep68° / 52°2.58.1012.46.7
Oct58° / 46°5.213.70.110.64.0
Nov49° / 40°8.118.12.49.11.6
Dec44° / 37°7.717.768.40.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36337
46337
56337
66337
76238
86238
96139
106040
115941
125941
135842
145842
155842
165743
175743
185743
195644
205644
215644
225545
235545
245644
255644
265644
275545
285545
295446
305347

Chance of precipitation in September

Any precipitation

South Hill gets around 2.5 in of rain over 8.1 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
122
223
323
423
524
624
724
825
925
1026
1126
1227
1327
1427
1528
1628
1728
1828
1929
2029
2129
2229
2330
2430
2530
2630
2730
2831
2931
3032

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
168311
269301
370291
470291
571281
672271
773261
874251
975241
1075241
1176231
1277221
1378211
1478211
1579201
1680191
1780191
1881181
1981181
2082171
2184160
2284160
2385150
2485150
2586140
2687130
2788120
2888120
2989110
3090100

Wind in September

Winds average 5 mph in September.

Across September, 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.

0246810151015202530
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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over September. Sunrise moves from 5:33 AM to 6:13 AM, and sunset from 6:45 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:336:45
213.15:346:42
313.15:366:40
413.05:376:38
513.05:386:36
612.95:406:34
712.95:416:32
812.85:436:30
912.75:446:28
1012.75:456:26
1112.65:476:24
1212.65:486:22
1312.55:496:20
1412.45:516:18
1512.45:526:16
1612.35:536:13
1712.35:556:11
1812.25:566:09
1912.25:586:07
2012.15:596:05
2112.06:006:03
2212.06:026:01
2311.96:035:59
2411.96:045:57
2511.86:065:54
2611.86:075:52
2711.76:095:50
2811.66:105:48
2911.66:115:46
3011.56:135:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.09 kWh/m².

For context, solar energy here swings from a low near 0.91 kWh/m² to a high of 6.26 kWh/m² in July across the year — September's 4.09 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.2Bright
144.1Bright
154.1Bright
164.0Bright
174.0Moderate
183.9Moderate
193.9Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.6Moderate
243.6Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.3Moderate
303.2Moderate
Planning a trip in September

Hazard calendar for South Hill

In seasonPeak

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

South Hill'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 September a good time to visit South Hill?

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

6.7
Sightseeing
3rd-best month of the year
3.3
Beach & pool
3rd-best month of the year

September is a reasonable time to visit South Hill for sightseeing.

What to pack for South Hill in September

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

In September, South Hill sees daytime highs around 68°F and nights near 52°F. Worth packing: rain gear. About 8 days see rain.

rain gear

UV index in South Hill in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in South Hill 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 South Hill in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in South Hill 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 South Hill?

South Hill sits at 47.1°N, 122.3°W, 535 ft above sea level, in United States. The nearest listed city is Puyallup, 3.1 mi away.

Topography around South Hill

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

Within 2 miles, the terrain around South Hill has only modest variations in elevation — a maximum elevation change of 610 ft around an average of 459 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,906 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 14,403 ft.

The land around South Hill is covered by trees (64%) and artificial surfaces (23%) within 2 miles, trees (61%) and grassland (20%) within 10 miles, and trees (79%) within 50 miles.

2 miles
610 ft
10 miles
1,906 ft
50 miles
14,403 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Puyallup 3.1 mi · Bonney Lake 4.3 mi · Frederickson 5.0 mi · Graham 6.2 mi · Parkland 7.5 mi · Spanaway 8.1 mi · Tacoma 11 mi · Auburn 12 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 South Hill (47.1412°, -122.2701°, elevation 535 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).