Marquette weather in August

In August, Marquette sees average daytime highs of 73°F and overnight lows near 57°F, with 3.1 in of rain across 10.7 wet days and about 14 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 73°F through the month. The sky is clear or mostly clear about 33% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Marquette's 2nd-clearest and 10th-windiest month. For the whole year in context, see Marquette's year-round climate.

Daytime high
73°
2nd warmest
Overnight low
57°
11th coldest
Rainfall
3.1 in
10.7 wet days
Daylight
14 hours
5:53 AM – 7:54 PM
Cloud cover
56%
2nd clearest
Wind
7 mph
10th windiest
Solar energy
5.33 kWh/m²
Travel score
6.7
out of 10

Marquette is city in the U.S. state of Michigan and County seat of Marquette County, Michigan.

Density
421/km²
people per km²
Founded
1849

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 73°F through the month.

A typical August day in Marquette reaches about 73°F in the afternoon and slips back to 57°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 64°F and 81°F. Set against its neighbours, August runs on par with July and about 7°F warmer than September.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17458
27458
37458
47458
57458
67458
77458
87458
97358
107358
117358
127358
137358
147357
157357
167357
177357
187357
197357
207357
217257
227257
237256
247256
257256
267256
277256
287156
297155
307155
317155

How August really feels in Marquette

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.

Marquette 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
Jan22° / 10°1.58.710.78.80.0
Feb24° / 10°1.26.47.3100.0
Mar34° / 19°1.98.8711.60.0
Apr45° / 30°2.710.65.413.31.1
May58° / 41°3.011.10.714.84.2
Jun68° / 52°3.211015.66.1
Jul74° / 58°3.211.4015.26.8
Aug73° / 57°3.110.70146.7
Sep66° / 50°3.511.6012.45.7
Oct52° / 40°3.513.61.510.72.6
Nov39° / 29°2.310.67.79.20.2
Dec29° / 19°1.89.811.38.40.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35743
45743
55644
65644
75644
85545
95545
105545
115545
125446
135545
145446
155446
165347
175347
185248
195248
205248
215248
225248
235248
245248
255248
265248
275149
285248
295248
305248
315149

Chance of precipitation in August

Any precipitation

Marquette gets around 3.1 in of rain over 10.7 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
536
636
736
835
935
1035
1135
1235
1335
1435
1535
1635
1735
1835
1935
2035
2135
2234
2334
2433
2533
2633
2732
2832
2932
3031
3131

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1303227101
2303227101
3313227101
4313127100
5323127100
6333127100
733312690
834302690
934312690
1035312590
1135312590
1235322580
1336322480
1436322480
1536322470
1636332470
1736332470
1836332470
1936332470
2037332370
2137332370
2238332270
2338332270
2439332170
2540332170
2641322070
2742322070
2843312070
2944301970
3045291970
3147281860

Wind in August

Winds average 7 mph in August.

Across August, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167light breeze
177light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 42 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 90 minutes over August. Sunrise moves from 5:34 AM to 6:13 AM, and sunset from 8:17 PM to 7:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:348:17
214.75:368:16
314.65:378:14
414.65:388:13
514.55:398:11
614.55:408:10
714.45:428:09
814.45:438:07
914.45:448:05
1014.35:468:04
1114.35:478:02
1214.25:488:01
1314.25:497:59
1414.15:517:57
1514.15:527:56
1614.05:537:54
1714.05:557:52
1813.95:567:51
1913.95:577:49
2013.85:597:47
2113.86:007:45
2213.76:017:43
2313.76:027:42
2413.66:047:40
2513.56:057:38
2613.56:067:36
2713.46:087:34
2813.46:097:32
2913.36:107:30
3013.36:127:28
3113.26:137:26

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.33 kWh/m².

For context, solar energy here swings from a low near 1.14 kWh/m² to a high of 6.39 kWh/m² in June across the year — August's 5.33 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Marquette?

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

6.7
Sightseeing
2nd-best month of the year
5.0
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Marquette for sightseeing.

What to pack for Marquette in August

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

In August, Marquette sees daytime highs around 73°F and nights near 57°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Marquette in August

The nearest coast averages about 62°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 62°F and coldest in March near 34°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

30°40°50°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan36Bracing
Feb35Bracing
Mar34Bracing
Apr35Bracing
May38Bracing
Jun43Bracing
Jul54Bracing
Aug62Cool
Sep59Cool
Oct51Bracing
Nov44Bracing
Dec40Bracing

UV index in Marquette 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 Marquette peaks around June 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 17UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May7High
Jun8Very high
Jul7Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Marquette?

Marquette sits at 46.5°N, 87.4°W, 666 ft above sea level, in United States. The nearest listed city is Mackinac Island, 141 mi away.

Topography around Marquette

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

Within 2 miles, the terrain around Marquette has only modest variations in elevation — a maximum elevation change of 410 ft around an average of 686 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,060 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,667 ft.

The land around Marquette is covered by water (38%), trees (32%) and artificial surfaces (21%) within 2 miles, trees (48%) and water (44%) within 10 miles, and trees (56%) and water (41%) within 50 miles.

2 miles
410 ft
10 miles
1,060 ft
50 miles
1,667 ft
treesgrasslandartificial surfaceswater
August weather nearby: Mackinac Island 141 mi · Howard 142 mi · Green Bay 143 mi · Sault Ste. Marie 145 mi · Sault Ste. Marie 145 mi · Ashwaubenon 146 mi · Bellevue 147 mi · De Pere 149 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 Marquette (46.5435°, -87.3954°, elevation 666 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).