Aberdeen weather in August

In August, Aberdeen sees average daytime highs of 81°F and overnight lows near 59°F, with 2.9 in of rain across 7.9 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 81°F through the month. The sky is clear or mostly clear about 53% of the time in August, and the air most often feels humid.

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

Daytime high
81°
2nd warmest
Overnight low
59°
11th coldest
Rainfall
2.9 in
7.9 wet days
Daylight
13 h 54 min
5:40 AM – 7:36 PM
Cloud cover
42%
2nd clearest
Wind
8 mph
11th windiest
Solar energy
5.81 kWh/m²
Travel score
7.1
out of 10

Aberdeen is city in and the county seat of Brown County, South Dakota, United States.

Density
680/km²
people per km²
Founded
1880

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 81°F through the month.

A typical August day in Aberdeen reaches about 81°F in the afternoon and slips back to 59°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 90°F. Set against its neighbours, August runs about 2°F cooler than July and about 8°F warmer than September.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18261
28261
38261
48260
58260
68260
78260
88260
98160
108160
118160
128160
138159
148159
158159
168159
178159
188159
198159
208159
218159
228158
238158
248158
258058
268058
278058
288058
298057
307957
317957

How August really feels in Aberdeen

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.

Aberdeen 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
Jan22° / 0.74.24.58.90.0
Feb27° / 0.84.34.310.10.0
Mar40° / 21°1.45.93.511.60.5
Apr55° / 33°2.382.213.23.6
May68° / 47°3.410.50.114.76.1
Jun77° / 57°4.211.5015.46.6
Jul83° / 62°2.98.7015.16.4
Aug81° / 59°2.97.9013.97.1
Sep73° / 50°2.57.1012.37.3
Oct58° / 37°2.06.70.910.74.6
Nov41° / 23°1.04.43.39.30.5
Dec27° / 11°0.84.44.78.60.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 29%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27228
37228
47228
57129
67129
77030
87030
97030
107030
117129
127030
137030
147129
157129
167129
177129
187129
197129
207129
217228
227228
237228
247228
257228
267129
277129
287129
297129
307129
317030

Chance of precipitation in August

Any precipitation

Aberdeen gets around 2.9 in of rain over 7.9 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 26% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
426
526
626
727
827
927
1027
1127
1227
1327
1427
1527
1627
1727
1827
1926
2026
2126
2226
2325
2425
2525
2624
2724
2824
2924
3024
3123

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 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1212730185
2212730184
3212730184
4212730184
5212730184
6212829184
7212829183
8222829183
9222829183
10222829183
11232828183
12232929172
13232929172
14242829172
15252829172
16252829162
17262829161
18262829161
19262829161
20272829161
21272729151
22282729151
23292729151
24302628151
25312628150
26322628140
27332527140
28352527130
29362426130
30382425120
31412424110

Wind in August

Winds average 8 mph in August.

Across August, daily wind ranges from about 8 mph on the calmest days to 9 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
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

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 5:22 AM to 5:59 AM, and sunset from 7:58 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:227:58
214.65:237:57
314.55:247:56
414.55:257:54
514.45:267:53
614.45:287:52
714.45:297:50
814.35:307:49
914.35:317:47
1014.25:337:46
1114.25:347:44
1214.15:357:43
1314.15:367:41
1414.05:377:39
1514.05:397:38
1613.95:407:36
1713.95:417:34
1813.85:427:33
1913.85:447:31
2013.75:457:29
2113.75:467:28
2213.65:477:26
2313.65:497:24
2413.55:507:22
2513.55:517:20
2613.45:527:19
2713.45:547:17
2813.35:557:15
2913.35:567:13
3013.25:577:11
3113.25:597:09

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.81 kWh/m².

For context, solar energy here swings from a low near 1.53 kWh/m² to a high of 6.69 kWh/m² in July across the year — August's 5.81 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.2Intense
66.1Intense
76.1Intense
86.0Intense
96.0Intense
106.0Bright
116.0Bright
125.9Bright
135.9Bright
145.9Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.7Bright
205.7Bright
215.7Bright
225.6Bright
235.6Bright
245.6Bright
255.5Bright
265.5Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in August

Hazard calendar for Aberdeen

In seasonPeak

In August, Aberdeen sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Aberdeen's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Aberdeen?

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

7.1
Sightseeing
2nd-best month of the year
7.2
Beach & pool
2nd-best month of the year

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

What to pack for Aberdeen in August

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

In August, Aberdeen sees daytime highs around 81°F and nights near 59°F. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Aberdeen 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 Aberdeen peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun9Very high
Jul8Very high
Aug7High
Sep5High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Aberdeen?

Aberdeen sits at 45.5°N, 98.5°W, 1,302 ft above sea level, in United States. The nearest listed city is Watertown, 78 mi away.

Topography around Aberdeen

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

Within 2 miles, the terrain around Aberdeen has only modest variations in elevation — a maximum elevation change of 43 ft around an average of 1,306 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 161 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 981 ft.

The land around Aberdeen is covered by grassland (34%) and artificial surfaces (31%) within 2 miles, cropland (67%) and grassland (27%) within 10 miles, and cropland (62%) and grassland (35%) within 50 miles.

2 miles
43 ft
10 miles
161 ft
50 miles
981 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Watertown 78 mi · Jamestown 101 mi · Brookings 115 mi · Mitchell 124 mi · West Fargo 124 mi · Fargo 127 mi · Moorhead 127 mi · Bismarck 144 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 Aberdeen (45.4647°, -98.4865°, elevation 1,302 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).