Winchester weather in August

In August, Winchester sees average daytime highs of 84°F and overnight lows near 65°F, with 2.9 in of rain across 10.1 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 84°F through the month. The sky is clear or mostly clear about 28% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 06 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Winchester's 4th-clearest and 12th-windiest month. For the whole year in context, see Winchester's year-round climate.

Daytime high
84°
2nd warmest
Overnight low
65°
11th coldest
Rainfall
2.9 in
10.1 wet days
Daylight
13 h 30 min
5:30 AM – 7:03 PM
Cloud cover
58%
4th clearest
Wind
4 mph
12th windiest
Solar energy
5.3 kWh/m²
Travel score
5.6
out of 10

Winchester is independent city in Virginia, United States.

Density
1,138/km²
people per km²
Founded
1752

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 84°F through the month.

A typical August day in Winchester reaches about 84°F in the afternoon and slips back to 65°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 91°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18567
28567
38567
48567
58567
68566
78566
88566
98466
108466
118466
128466
138466
148466
158466
168465
178465
188465
198465
208465
218365
228365
238365
248365
258364
268364
278364
288364
298364
308264
318263

How August really feels in Winchester

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.

Winchester weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 25°2.98.33.59.60.0
Feb44° / 27°2.68.33.610.50.6
Mar52° / 34°3.710.42.811.72.8
Apr64° / 44°3.6110.2135.5
May72° / 53°4.112.4014.16.3
Jun81° / 62°3.611.8014.75.9
Jul85° / 67°3.511.3014.55.0
Aug84° / 65°2.910.1013.55.6
Sep77° / 58°4.29.2012.36.9
Oct65° / 46°3.28.10.1116.2
Nov54° / 36°2.97.60.69.93.4
Dec44° / 29°3.28.82.69.30.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34951
44951
55050
65050
75149
85050
95050
105050
115149
125050
135050
145050
155149
165149
175248
185248
195248
205347
215347
225347
235248
245248
255248
265248
275248
285248
295347
305248
315347

Chance of precipitation in August

Any precipitation

Winchester gets around 2.9 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 33% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
536
636
736
836
936
1036
1135
1235
1335
1435
1534
1634
1733
1833
1932
2031
2131
2230
2330
2429
2529
2629
2729
2829
2929
3029
3129

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1111730357
2111730357
3121729347
4121829347
5131828338
6131828338
7141828338
8141828338
9141828328
10141828328
11141828328
12141828328
13141829327
14141929317
15141929317
16141930316
17151930306
18151931305
19152031305
20152031295
21152031294
22162131294
23162131284
24172130284
25182229274
26192228265
27202327265
28212325255
29222424255
30232423246
31242422246

Wind in August

Winds average 4 mph in August, the calmest month.

Across August, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 min at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over August. Sunrise moves from 5:16 AM to 5:44 AM, and sunset from 7:21 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:167:21
214.05:177:20
314.05:187:19
414.05:197:18
513.95:207:17
613.95:217:16
713.95:227:14
813.85:237:13
913.85:247:12
1013.85:257:11
1113.75:267:10
1213.75:277:08
1313.75:287:07
1413.65:287:06
1513.65:297:05
1613.55:307:03
1713.55:317:02
1813.55:327:00
1913.45:336:59
2013.45:346:58
2113.45:356:56
2213.35:366:55
2313.35:376:53
2413.25:386:52
2513.25:396:50
2613.15:406:49
2713.15:416:47
2813.15:426:46
2913.05:436:44
3013.05:446:43
3112.95:446:41

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.3 kWh/m².

For context, solar energy here swings from a low near 1.89 kWh/m² to a high of 6.13 kWh/m² in June across the year — August's 5.3 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Winchester?

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

5.6
Sightseeing
5th-best month of the year
6.9
Beach & pool
1st-best month of the year

August is a reasonable time to visit Winchester for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Winchester in August

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

In August, Winchester sees daytime highs around 84°F and nights near 65°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Winchester 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 Winchester peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 23UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Winchester 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 Winchester is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 138 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar12Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Winchester?

Winchester sits at 39.2°N, 78.2°W, 709 ft above sea level, in United States. The nearest listed city is Front Royal, 19 mi away.

Topography around Winchester

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

Within 2 miles, the terrain around Winchester has only modest variations in elevation — a maximum elevation change of 358 ft around an average of 748 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,814 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,183 ft.

The land around Winchester is covered by trees (45%) and artificial surfaces (35%) within 2 miles, trees (51%) and grassland (37%) within 10 miles, and trees (70%) and grassland (21%) within 50 miles.

2 miles
358 ft
10 miles
1,814 ft
50 miles
4,183 ft
treesgrasslandcroplandartificial surfacesbare terrain
August weather nearby: Front Royal 19 mi · Martinsburg 22 mi · Leesburg 32 mi · Ashburn 37 mi · Hagerstown 39 mi · South Riding 40 mi · Ballenger Creek 41 mi · Sterling 41 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 Winchester (39.1857°, -78.1633°, elevation 709 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).