Oshkosh weather in August

In August, Oshkosh sees average daytime highs of 77°F and overnight lows near 63°F, with 3.4 in of rain across 10.1 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 78°F in the first days to 75°F by the end. The sky is clear or mostly clear about 37% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 30 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Oshkosh's 3rd-clearest and 12th-windiest month. For the whole year in context, see Oshkosh's year-round climate.

Daytime high
77°
2nd warmest
Overnight low
63°
11th coldest
Rainfall
3.4 in
10.1 wet days
Daylight
13 h 48 min
5:03 AM – 6:53 PM
Cloud cover
54%
3rd clearest
Wind
8 mph
12th windiest
Solar energy
5.13 kWh/m²
Travel score
7.0
out of 10

Oshkosh is city in and county seat of Winnebago County, Wisconsin, United States.

Density
924/km²
people per km²
Founded
1818

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 78°F in the first days to 75°F by the end.

A typical August day in Oshkosh reaches about 77°F in the afternoon and slips back to 63°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 83°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17865
27865
37865
47865
57865
67864
77864
87764
97764
107764
117764
127764
137764
147764
157764
167763
177663
187663
197663
207663
217663
227663
237663
247663
257662
267662
277562
287562
297562
307561
317561

How August really feels in Oshkosh

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.

Oshkosh weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan25° / 14°1.57.86.99.10.0
Feb28° / 16°1.36.65.510.20.0
Mar38° / 25°2.38.74.711.60.1
Apr51° / 37°3.310.92.413.22.4
May64° / 50°3.410.9014.55.5
Jun74° / 61°3.710.6015.26.7
Jul79° / 65°3.210.10156.8
Aug77° / 63°3.410.1013.87.0
Sep69° / 56°2.99.3012.36.6
Oct56° / 44°2.99.90.310.83.8
Nov42° / 32°2.18.32.49.40.6
Dec31° / 20°1.77.15.48.80.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
25941
35941
45941
55842
65743
75644
85644
95644
105545
115545
125545
135545
145446
155545
165545
175545
185446
195446
205446
215446
225545
235545
245644
255644
265743
275743
285842
295743
305743
315743

Chance of precipitation in August

Any precipitation

Oshkosh gets around 3.4 in of rain over 10.1 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 32% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
233
333
433
533
632
732
832
932
1031
1131
1231
1331
1431
1531
1631
1731
1831
1932
2032
2132
2232
2332
2432
2532
2632
2732
2831
2931
3030
3130

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1924312511
2924312510
31024312510
41025302510
51025302510
61025302510
7112530259
8112530259
9122630248
10122630248
11122630247
12132630247
13132730246
14132730246
15132730255
16132730255
17142729255
18142729264
19142729264
20142729264
21142729264
22142729264
23152729264
24152729264
25162628254
26172628254
27182627244
28192627244
29212626234
30222626234
31242525224

Wind in August

Winds average 8 mph in August, the calmest month.

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

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light 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 30 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 84 minutes over August. Sunrise moves from 4:46 AM to 5:21 AM, and sunset from 7:14 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.54:467:14
214.44:477:13
314.44:487:12
414.44:497:11
514.34:507:09
614.34:527:08
714.24:537:07
814.24:547:05
914.14:557:04
1014.14:567:03
1114.14:577:01
1214.04:587:00
1314.05:006:58
1413.95:016:57
1513.95:026:55
1613.85:036:53
1713.85:046:52
1813.75:056:50
1913.75:076:49
2013.75:086:47
2113.65:096:45
2213.65:106:44
2313.55:116:42
2413.55:126:40
2513.45:146:38
2613.45:156:37
2713.35:166:35
2813.35:176:33
2913.25:186:31
3013.25:206:30
3113.15:216:28

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.13 kWh/m².

For context, solar energy here swings from a low near 1.55 kWh/m² to a high of 6.14 kWh/m² in June across the year — August's 5.13 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Oshkosh?

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

7.0
Sightseeing
1st-best month of the year
6.2
Beach & pool
2nd-best month of the year

August is one of the better times to visit Oshkosh for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Oshkosh in August

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

In August, Oshkosh sees daytime highs around 77°F and nights near 63°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Oshkosh 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 Oshkosh peaks around June 18 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 18UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May8Very high
Jun9Very high
Jul8Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Oshkosh?

Oshkosh sits at 44.0°N, 88.5°W, 768 ft above sea level, in United States. The nearest listed city is Neenah, 12 mi away.

Topography around Oshkosh

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

Within 2 miles, the terrain around Oshkosh has only modest variations in elevation — a maximum elevation change of 148 ft around an average of 758 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 318 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 768 ft.

The land around Oshkosh is covered by artificial surfaces (44%), trees (21%) and water (21%) within 2 miles, water (40%) and cropland (30%) within 10 miles, and cropland (45%) and trees (30%) within 50 miles.

2 miles
148 ft
10 miles
318 ft
50 miles
768 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Neenah 12 mi · Menasha 13 mi · Appleton 17 mi · Fond du Lac 18 mi · Kaukauna 22 mi · De Pere 38 mi · Ashwaubenon 39 mi · Beaver Dam 42 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 Oshkosh (44.0247°, -88.5426°, elevation 768 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).