Wenatchee weather in August

In August, Wenatchee sees average daytime highs of 81°F and overnight lows near 54°F, with 0.3 in of rain across 2 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 83°F in the first days to 77°F by the end. The sky is clear or mostly clear about 66% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 48 min at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Wenatchee's 2nd-clearest and 4th-windiest month. For the whole year in context, see Wenatchee's year-round climate.

Daytime high
81°
2nd warmest
Overnight low
54°
11th coldest
Rainfall
0.3 in
2 wet days
Daylight
14 h 06 min
5:03 AM – 7:08 PM
Cloud cover
32%
2nd clearest
Wind
5 mph
4th windiest
Solar energy
6.53 kWh/m²
Travel score
8.0
out of 10

Wenatchee is city in Chelan County, Washington, United States.

Density
1,568/km²
people per km²
Founded
1892

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 83°F in the first days to 77°F by the end.

A typical August day in Wenatchee reaches about 81°F in the afternoon and slips back to 54°F overnight — a 26°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 91°F. Set against its neighbours, August runs on par with July and about 10°F warmer than September.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18356
28356
38356
48356
58356
68356
78356
88356
98355
108255
118255
128255
138255
148255
158155
168155
178154
188054
198054
208054
218054
227953
237953
247953
257853
267853
277852
287752
297752
307752
317651

How August really feels in Wenatchee

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.

Wenatchee weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 23°3.012.8118.70.0
Feb38° / 26°2.19.98.29.90.0
Mar46° / 30°1.910.5611.61.2
Apr55° / 36°1.37.3113.33.7
May65° / 44°1.370.114.96.3
Jun72° / 49°0.84.9015.77.6
Jul81° / 55°0.32.3015.47.9
Aug81° / 54°0.32014.18.0
Sep71° / 48°0.73.50.112.48.0
Oct56° / 38°1.77.70.810.64.1
Nov41° / 29°2.811.56.39.10.3
Dec32° / 22°3.313.111.98.30.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 66% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18713
28713
38713
48713
58614
68515
78515
88416
98416
108416
118317
128218
138218
148218
158119
168119
178020
188020
197921
207822
217822
227822
237723
247723
257723
267723
277723
287723
297624
307624
317624

Chance of precipitation in August

Any precipitation

Wenatchee gets around 0.3 in of rain over 2 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 7% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
96
106
116
126
136
147
157
167
177
187
197
207
217
227
237
247
257
267
277
287
297
307
317

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
8991
9991
10991
11991
12991
13991
14991
15991
16991
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in August

Winds average 5 mph in August.

Across August, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 48 min at the start of August to 13 h 18 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 4:43 AM to 5:24 AM, and sunset from 7:31 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:437:31
214.84:457:30
314.74:467:29
414.74:477:27
514.64:487:26
614.64:507:24
714.54:517:23
814.54:527:21
914.44:547:19
1014.44:557:18
1114.34:567:16
1214.34:587:15
1314.24:597:13
1414.25:007:11
1514.15:027:09
1614.15:037:08
1714.05:047:06
1814.05:067:04
1913.95:077:02
2013.95:087:00
2113.85:106:59
2213.85:116:57
2313.75:136:55
2413.65:146:53
2513.65:156:51
2613.55:176:49
2713.55:186:47
2813.45:196:45
2913.45:216:43
3013.35:226:41
3113.35:246:39

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.53 kWh/m².

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 7.64 kWh/m² in July across the year — August's 6.53 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.2Intense
47.2Intense
57.1Intense
67.1Intense
77.0Intense
87.0Intense
96.9Intense
106.9Intense
116.8Intense
126.8Intense
136.7Intense
146.7Intense
156.6Intense
166.6Intense
176.5Intense
186.5Intense
196.4Intense
206.3Intense
216.3Intense
226.2Intense
236.2Intense
246.1Intense
256.1Intense
266.0Intense
276.0Bright
285.9Bright
295.8Bright
305.8Bright
315.7Bright
Planning a trip in August

Is August a good time to visit Wenatchee?

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

8.0
Sightseeing
1st-best month of the year
8.3
Beach & pool
2nd-best month of the year

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

What to pack for Wenatchee in August

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

In August, Wenatchee sees daytime highs around 81°F and nights near 54°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Wenatchee 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 Wenatchee peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowJul 17UV 9Dec 13UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May7Very high
Jun6High
Jul9Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Wenatchee in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Wenatchee is worst in August — around 29 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2028 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar11Good
Apr10Good
May9Good
Jun9Good
Jul12Good
Aug29Moderate
Sep23Moderate
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Wenatchee?

Wenatchee sits at 47.4°N, 120.3°W, 666 ft above sea level, in United States. The nearest listed city is Ellensburg, 32 mi away.

Topography around Wenatchee

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

Within 2 miles, the terrain around Wenatchee has significant variations in elevation — a maximum elevation change of 1,099 ft around an average of 810 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 5,236 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,609 ft.

The land around Wenatchee is covered by artificial surfaces (53%) within 2 miles, grassland (59%) and trees (26%) within 10 miles, and grassland (42%) and trees (37%) within 50 miles.

2 miles
1,099 ft
10 miles
5,236 ft
50 miles
8,609 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Ellensburg 32 mi · Moses Lake 52 mi · Yakima 58 mi · Sunnyside 77 mi · Issaquah 81 mi · Maple Valley 81 mi · City of Sammamish 81 mi · Union Hill-Novelty Hill 82 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 Wenatchee (47.4235°, -120.3103°, 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).