Phoenixville weather in August

In August, Phoenixville sees average daytime highs of 83°F and overnight lows near 66°F, with 4.0 in of rain across 10.3 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 84°F in the first days to 82°F by the end. The sky is clear or mostly clear about 29% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 06 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Phoenixville's 4th-clearest and 12th-windiest month. For the whole year in context, see Phoenixville's year-round climate.

Daytime high
83°
2nd warmest
Overnight low
66°
11th coldest
Rainfall
4.0 in
10.3 wet days
Daylight
13 h 36 min
5:18 AM – 6:54 PM
Cloud cover
59%
4th clearest
Wind
5 mph
12th windiest
Solar energy
5.24 kWh/m²
Travel score
5.8
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 84°F in the first days to 82°F by the end.

A typical August day in Phoenixville reaches about 83°F in the afternoon and slips back to 66°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 90°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18568
28568
38468
48467
58467
68467
78467
88467
98467
108467
118367
128367
138367
148366
158366
168366
178366
188366
198366
208366
218265
228265
238265
248265
258265
268265
278264
288264
298264
308164
318164

How August really feels in Phoenixville

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.

Phoenixville weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 25°3.39.54.29.50.0
Feb42° / 26°3.093.810.40.3
Mar50° / 33°4.0113.311.72.3
Apr62° / 44°3.8110.4135.1
May71° / 53°3.911.7014.26.3
Jun81° / 63°4.311.7014.86.0
Jul85° / 68°4.411.7014.65.0
Aug83° / 66°4.010.3013.65.8
Sep76° / 59°4.69.4012.36.9
Oct64° / 47°3.88.80.110.95.9
Nov53° / 38°3.07.90.59.83.2
Dec43° / 30°3.99.32.49.20.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24852
34852
44753
54753
64654
74654
84654
94555
104555
114654
124654
134654
144654
154753
164753
174753
184852
194852
204852
214852
225050
235050
245149
255149
265149
275149
285050
295050
305050
314951

Chance of precipitation in August

Any precipitation

Phoenixville gets around 4.0 in of rain over 10.3 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 34% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
240
339
438
538
638
737
837
937
1037
1137
1237
1336
1436
1536
1635
1735
1834
1933
2032
2131
2230
2330
2429
2529
2628
2728
2827
2927
3027
3127

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 41% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11117253215
21117253215
31217253115
41217253115
51317253015
61317253015
71316253015
81416253015
91416253015
101416253015
111416253014
121416253014
131516253014
141517253013
151517253013
161517253012
171518262912
181518262911
191619262911
201619262910
211620252910
22172025289
23182124289
24192224279
25192223269
26202323269
27212322259
28222322249
29222421249
30232421239
31242421239

Wind in August

Winds average 5 mph in August, the calmest month.

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 06 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 5:04 AM to 5:33 AM, and sunset from 7:13 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:047:13
214.15:057:12
314.15:067:10
414.05:067:09
514.05:077:08
614.05:087:07
713.95:097:06
813.95:107:05
913.95:117:03
1013.85:127:02
1113.85:137:01
1213.85:147:00
1313.75:156:58
1413.75:166:57
1513.65:176:56
1613.65:186:54
1713.65:196:53
1813.55:206:51
1913.55:216:50
2013.45:226:48
2113.45:236:47
2213.45:246:45
2313.35:256:44
2413.35:266:42
2513.25:276:41
2613.25:286:39
2713.15:296:38
2813.15:306:36
2913.15:316:35
3013.05:326:33
3113.05:336:31

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.24 kWh/m².

For context, solar energy here swings from a low near 1.78 kWh/m² to a high of 6.04 kWh/m² in June across the year — August's 5.24 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.4Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Phoenixville?

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

5.8
Sightseeing
5th-best month of the year
6.8
Beach & pool
1st-best month of the year

August is a reasonable time to visit Phoenixville for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Phoenixville in August

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

In August, Phoenixville sees daytime highs around 83°F and nights near 66°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Phoenixville 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 Phoenixville peaks around June 23 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 23UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Phoenixville 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 Phoenixville is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1417 µg/m³Nov 148 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar13Moderate
Apr13Moderate
May16Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Phoenixville?

Phoenixville sits at 40.1°N, 75.5°W, 138 ft above sea level, in United States. The nearest listed city is King of Prussia, 6.8 mi away.

Topography around Phoenixville

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

Within 2 miles, the terrain around Phoenixville has only modest variations in elevation — a maximum elevation change of 341 ft around an average of 177 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,145 ft; within 50 miles, large variations in elevation — a maximum elevation change of 1,969 ft.

The land around Phoenixville is covered by trees (59%) and grassland (21%) within 2 miles, trees (63%) and grassland (23%) within 10 miles, and trees (57%) within 50 miles.

2 miles
341 ft
10 miles
1,145 ft
50 miles
1,969 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: King of Prussia 6.8 mi · Limerick 6.8 mi · Wayne 8.7 mi · Norristown 9.3 mi · Radnor 9.9 mi · Pottstown 11 mi · West Chester 12 mi · Lansdale 14 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 Phoenixville (40.1304°, -75.5149°, elevation 138 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).