Wausau weather in August

In August, Wausau sees average daytime highs of 76°F and overnight lows near 57°F, with 3.7 in of rain across 10.5 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 77°F in the first days to 74°F by the end. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Wausau's 3rd-clearest and 12th-windiest month. For the whole year in context, see Wausau's year-round climate.

Daytime high
76°
2nd warmest
Overnight low
57°
11th coldest
Rainfall
3.7 in
10.5 wet days
Daylight
13 h 54 min
5:06 AM – 7:00 PM
Cloud cover
58%
3rd clearest
Wind
6 mph
12th windiest
Solar energy
5.17 kWh/m²
Travel score
6.9
out of 10

Wausau is city in and county seat of Marathon County, Wisconsin, United States.

Density
753/km²
people per km²

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 77°F in the first days to 74°F by the end.

A typical August day in Wausau reaches about 76°F in the afternoon and slips back to 57°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 68°F and 83°F. Set against its neighbours, August runs about 2°F cooler than July and about 8°F warmer than September.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17759
27759
37759
47759
57758
67758
77758
87658
97658
107658
117658
127658
137658
147657
157657
167657
177657
187557
197557
207557
217557
227557
237556
247556
257556
267556
277456
287456
297455
307455
317455

How August really feels in Wausau

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.

Wausau weather by month

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

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan23° / 1.27.17.690.0
Feb28° / 10°1.15.45.110.10.0
Mar40° / 21°2.18.25.511.60.3
Apr53° / 34°3.211.33.513.23.0
May65° / 46°3.712.50.214.65.5
Jun74° / 56°4.111.8015.36.4
Jul78° / 60°3.611.4015.16.6
Aug76° / 57°3.710.5013.96.9
Sep68° / 49°3.210.1012.36.3
Oct54° / 38°3.09.60.810.73.4
Nov39° / 26°2.07.53.89.40.3
Dec28° / 14°1.67.16.88.60.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45545
55446
65446
75347
85248
95248
105149
115149
125149
135149
145149
155248
165149
175248
185149
195248
205248
215347
225248
235248
245347
255347
265347
275446
285446
295446
305545
315545

Chance of precipitation in August

Any precipitation

Wausau gets around 3.7 in of rain over 10.5 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 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
336
436
536
636
735
835
935
1035
1135
1235
1334
1434
1534
1634
1734
1834
1934
2033
2133
2233
2333
2432
2532
2631
2731
2830
2930
3030
3130

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 11% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1303026132
2303026122
3313025122
4313025122
5323025122
6323024122
7333024122
8333024122
9342923121
10343023121
11353023111
12353023111
13353023111
14363024101
15363024101
16362924101
17362924100
1836292590
1937292590
2037282591
2137282591
2238282591
2339272491
2439272491
2540272491
2641262391
2742262391
2844252281
2945252181
3046242181
3148232081

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
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 36 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 84 minutes over August. Sunrise moves from 4:48 AM to 5:24 AM, and sunset from 7:21 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.64:487:21
214.54:497:20
314.54:507:19
414.44:517:18
514.44:527:16
614.44:547:15
714.34:557:13
814.34:567:12
914.24:577:11
1014.24:587:09
1114.15:007:08
1214.15:017:06
1314.05:027:04
1414.05:037:03
1513.95:047:01
1613.95:067:00
1713.95:076:58
1813.85:086:56
1913.85:096:55
2013.75:106:53
2113.75:126:51
2213.65:136:50
2313.65:146:48
2413.55:156:46
2513.55:176:44
2613.45:186:42
2713.45:196:41
2813.35:206:39
2913.35:216:37
3013.25:236:35
3113.25:246:33

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.17 kWh/m².

For context, solar energy here swings from a low near 1.37 kWh/m² to a high of 6.08 kWh/m² in June across the year — August's 5.17 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.6Bright
55.6Bright
65.6Bright
75.5Bright
85.5Bright
95.4Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.1Bright
205.0Bright
215.0Bright
225.0Bright
234.9Bright
244.9Bright
254.9Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Wausau?

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

6.9
Sightseeing
1st-best month of the year
5.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Wausau for sightseeing.

What to pack for Wausau in August

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

In August, Wausau sees daytime highs around 76°F and nights near 57°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Wausau 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 Wausau peaks around June 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 17UV 9Jan 11UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May7Very high
Jun9Very high
Jul8Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Wausau?

Wausau sits at 45.0°N, 89.6°W, 1,204 ft above sea level, in United States. The nearest listed city is Weston, 6.2 mi away.

Topography around Wausau

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

Within 2 miles, the terrain around Wausau has only modest variations in elevation — a maximum elevation change of 338 ft around an average of 1,250 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 1,168 ft.

The land around Wausau is covered by trees (45%) and artificial surfaces (32%) within 2 miles, trees (59%) and cropland (22%) within 10 miles, and trees (67%) and cropland (25%) within 50 miles.

2 miles
338 ft
10 miles
807 ft
50 miles
1,168 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Weston 6.2 mi · Stevens Point 30 mi · Marshfield 34 mi · Wisconsin Rapids 41 mi · Appleton 77 mi · Menasha 78 mi · Neenah 78 mi · Howard 81 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 Wausau (44.9591°, -89.6301°, elevation 1,204 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).