Troy weather in August

In August, Troy sees average daytime highs of 79°F and overnight lows near 62°F, with 3.1 in of rain across 10.3 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 81°F in the first days to 78°F by the end. The sky is clear or mostly clear about 30% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Troy's 3rd-clearest and 12th-windiest month. For the whole year in context, see Troy's year-round climate.

Daytime high
79°
2nd warmest
Overnight low
62°
11th coldest
Rainfall
3.1 in
10.3 wet days
Daylight
13 h 42 min
5:44 AM – 7:29 PM
Cloud cover
57%
3rd clearest
Wind
6 mph
12th windiest
Solar energy
5.35 kWh/m²
Travel score
6.6
out of 10

Troy is city in Oakland County, Michigan, United States.

Density
956/km²
people per km²
Founded
1819

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 81°F in the first days to 78°F by the end.

A typical August day in Troy reaches about 79°F in the afternoon and slips back to 62°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 87°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)
18164
28164
38164
48164
58164
68064
78064
88063
98063
108063
118063
128063
138063
148063
157963
167963
177962
187962
197962
207962
217962
227962
237962
247962
257962
267861
277861
287861
297861
307861
317860

How August really feels in Troy

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.

Troy weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan31° / 19°2.39.66.19.20.0
Feb34° / 20°2.07.95.810.30.0
Mar44° / 28°2.49.73.811.60.9
Apr57° / 39°3.6121.513.13.7
May68° / 50°3.712.8014.45.8
Jun78° / 60°3.711.2015.16.5
Jul82° / 64°3.111.4014.86.2
Aug79° / 62°3.110.3013.76.6
Sep73° / 55°2.79012.36.9
Oct60° / 44°2.89.60.210.84.8
Nov46° / 34°2.69.31.89.61.4
Dec36° / 25°2.29.24.98.90.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35446
45446
55446
65446
75347
85347
95347
105347
115248
125248
135248
145347
155248
165248
175248
185248
195248
205149
215149
225248
235248
245347
255347
265446
275545
285545
295644
305545
315644

Chance of precipitation in August

Any precipitation

Troy gets around 3.1 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
235
335
435
535
635
735
835
935
1035
1135
1235
1335
1434
1534
1634
1734
1833
1933
2033
2132
2232
2332
2431
2531
2631
2731
2830
2930
3030
3130

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 28% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1162629237
2162629237
3162628237
4162628236
5172628236
6172628236
7172628236
8182628236
9182627236
10182627236
11182627236
12192726236
13192726235
14192726235
15192726245
16192726244
17192726244
18192726244
19192725254
20192725254
21192725254
22192725263
23192725263
24192725253
25202725253
26212724253
27212724243
28222724243
29232723233
30252723223
31262723223

Wind in August

Winds average 6 mph in August, the calmest month.

Across August, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 5:28 AM to 6:01 AM, and sunset from 7:49 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:287:49
214.35:297:48
314.35:307:47
414.25:317:46
514.25:327:44
614.25:337:43
714.15:347:42
814.15:367:41
914.05:377:39
1014.05:387:38
1114.05:397:36
1213.95:407:35
1313.95:417:34
1413.85:427:32
1513.85:437:31
1613.75:447:29
1713.75:457:28
1813.75:467:26
1913.65:487:25
2013.65:497:23
2113.55:507:21
2213.55:517:20
2313.45:527:18
2413.45:537:16
2513.35:547:15
2613.35:557:13
2713.35:567:11
2813.25:577:10
2913.25:597:08
3013.16:007:06
3113.16:017:05

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.35 kWh/m².

For context, solar energy here swings from a low near 1.42 kWh/m² to a high of 6.34 kWh/m² in June across the year — August's 5.35 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
314.9Bright
Planning a trip in August

Is August a good time to visit Troy?

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

6.6
Sightseeing
2nd-best month of the year
6.4
Beach & pool
2nd-best month of the year

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

What to pack for Troy in August

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

In August, Troy sees daytime highs around 79°F and nights near 62°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Troy in August

The nearest coast averages about 73°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 mi away) is warmest in August at about 73°F and coldest in February near 33°F.

It's comfortable for a long swim from Jul 2 to Sep 15 — about 2.5 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan34Bracing
Feb33Bracing
Mar34Bracing
Apr41Bracing
May52Bracing
Jun64Cool
Jul72Refreshing
Aug73Refreshing
Sep68Refreshing
Oct57Bracing
Nov47Bracing
Dec39Bracing

UV index in Troy in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Troy peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighModerateLowJun 20UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun9Very high
Jul8Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Troy 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 Troy is worst in July — around 15 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1415 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar14Moderate
Apr13Moderate
May15Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep12Moderate
Oct8Good
Nov9Good
Dec9Good
Location & terrain

Where is Troy?

Troy sits at 42.6°N, 83.1°W, 748 ft above sea level, in United States. The nearest listed city is Rochester Hills, 3.7 mi away.

Topography around Troy

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

Within 2 miles, the terrain around Troy has only modest variations in elevation — a maximum elevation change of 240 ft around an average of 755 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 673 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 915 ft.

The land around Troy is covered by trees (51%), artificial surfaces (25%) and grassland (23%) within 2 miles, trees (47%) and artificial surfaces (34%) within 10 miles, and trees (36%) and cropland (30%) within 50 miles.

2 miles
240 ft
10 miles
673 ft
50 miles
915 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Rochester Hills 3.7 mi · Birmingham 5.0 mi · Sterling Heights 6.2 mi · Auburn Hills 6.8 mi · Berkley 7.5 mi · Shelby 7.5 mi · Pontiac 7.5 mi · Royal Oak 8.1 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 Troy (42.6056°, -83.1499°, elevation 748 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).