Sault Ste. Marie weather in August

In August, Sault Ste. Marie sees average daytime highs of 72°F and overnight lows near 58°F, with 3.8 in of rain across 11.1 wet days and about 14 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 73°F in the first days to 70°F by the end. The sky is clear or mostly clear about 35% of the time in August, and the air most often feels comfortable.

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 Sault Ste. Marie's 2nd-clearest and 11th-windiest month. For the whole year in context, see Sault Ste. Marie's year-round climate.

Daytime high
72°
2nd warmest
Overnight low
58°
11th coldest
Rainfall
3.8 in
11.1 wet days
Daylight
14 hours
5:41 AM – 7:42 PM
Cloud cover
54%
2nd clearest
Wind
7 mph
11th windiest
Solar energy
5.36 kWh/m²
Travel score
6.6
out of 10

Sault Ste. Marie is city in Michigan, United States.

Density
265/km²
people per km²
Founded
1668

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 73°F in the first days to 70°F by the end.

A typical August day in Sault Ste. Marie reaches about 72°F in the afternoon and slips back to 58°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 65°F and 79°F. Set against its neighbours, August runs about 1°F cooler than July and about 7°F warmer than September.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17359
27359
37359
47359
57359
67359
77359
87359
97359
107358
117358
127358
137258
147258
157258
167258
177258
187258
197157
207157
217157
227157
237157
247157
257156
267156
277056
287056
297056
307056
317055

How August really feels in Sault Ste. Marie

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.

Sault Ste. Marie 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
Jan21° / 1.810.112.18.80.0
Feb23° / 1.57.88.5100.0
Mar33° / 17°1.88.6711.60.0
Apr46° / 30°2.610.2413.31.2
May58° / 42°2.99.90.314.84.4
Jun69° / 53°3.310.2015.56.3
Jul73° / 58°3.911.3015.26.7
Aug72° / 58°3.811.10146.6
Sep65° / 51°4.111.8012.45.6
Oct52° / 40°4.013.60.410.72.5
Nov39° / 29°2.6116.39.20.2
Dec28° / 17°2.21110.98.50.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35941
45941
55941
65941
75941
85941
95941
105941
115743
125743
135743
145644
155644
165545
175446
185446
195347
205347
215347
225248
235248
245248
255149
265248
275248
285248
295347
305347
315347

Chance of precipitation in August

Any precipitation

Sault Ste. Marie gets around 3.8 in of rain over 11.1 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 36% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
436
536
635
735
835
934
1034
1134
1235
1335
1435
1535
1635
1736
1836
1936
2037
2137
2237
2337
2437
2537
2637
2737
2837
2937
3037
3137

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 32% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1213231142
2213231142
3213230142
4223230142
5233229142
6233329142
7243328131
8253328131
9263328121
10273328121
11273328111
12283328101
13283328101
1429332891
1530332891
1630332881
1731322881
1831322981
1932322980
2032312970
2133312970
2233312970
2334312870
2434302870
2535302770
2636302770
2736302670
2837302670
2938302570
3039302570
3140292470

Wind in August

Winds average 7 mph in August.

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

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 5:22 AM to 6:01 AM, and sunset from 8:05 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:228:05
214.75:238:03
314.65:258:02
414.65:268:01
514.55:277:59
614.55:287:58
714.45:307:56
814.45:317:55
914.35:327:53
1014.35:337:52
1114.35:357:50
1214.25:367:48
1314.25:377:47
1414.15:397:45
1514.15:407:43
1614.05:417:42
1714.05:437:40
1813.95:447:38
1913.95:457:37
2013.85:467:35
2113.85:487:33
2213.75:497:31
2313.65:507:29
2413.65:527:27
2513.55:537:26
2613.55:547:24
2713.45:567:22
2813.45:577:20
2913.35:587:18
3013.36:007:16
3113.26:017:14

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.36 kWh/m².

For context, solar energy here swings from a low near 1.1 kWh/m² to a high of 6.48 kWh/m² in June across the year — August's 5.36 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Sault Ste. Marie?

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
4.6
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Sault Ste. Marie for sightseeing.

What to pack for Sault Ste. Marie in August

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

In August, Sault Ste. Marie sees daytime highs around 72°F and nights near 58°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Sault Ste. Marie in August

The nearest coast averages about 66°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 9 mi away) is warmest in August at about 66°F and coldest in February near 33°F.

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

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan35Bracing
Feb33Bracing
Mar33Bracing
Apr35Bracing
May41Bracing
Jun51Bracing
Jul63Cool
Aug66Cool
Sep61Cool
Oct53Bracing
Nov44Bracing
Dec38Bracing

UV index in Sault Ste. Marie 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 Sault Ste. Marie peaks around June 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 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 18UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May7High
Jun8Very high
Jul7Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Sault Ste. Marie?

Sault Ste. Marie sits at 46.5°N, 84.3°W, 0 ft above sea level, in United States. The nearest listed city is Sault Ste. Marie, 1.9 mi away.

Topography around Sault Ste. Marie

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

Within 2 miles, the terrain around Sault Ste. Marie has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 627 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 807 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,611 ft.

The land around Sault Ste. Marie is covered by trees (31%), artificial surfaces (25%) and water (25%) within 2 miles, trees (60%) within 10 miles, and trees (64%) and water (31%) within 50 miles.

2 miles
197 ft
10 miles
807 ft
50 miles
1,611 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Sault Ste. Marie 1.9 mi · Mackinac Island 47 mi · Traverse City 135 mi · Marquette 145 mi · Valley East 159 mi · Greater Sudbury 160 mi · Timmins 196 mi · Midland 199 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 Sault Ste. Marie (46.4953°, -84.3453°, elevation 0 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).