Worcester weather in August

In August, Worcester sees average daytime highs of 80°F and overnight lows near 63°F, with 3.8 in of rain across 10.2 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 81°F in the first days to 78°F by the end. The sky is clear or mostly clear about 31% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 18 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Worcester's 3rd-clearest and 12th-windiest month. For the whole year in context, see Worcester's year-round climate.

Daytime high
80°
2nd warmest
Overnight low
63°
11th coldest
Rainfall
3.8 in
10.2 wet days
Daylight
13 h 42 min
4:59 AM – 6:43 PM
Cloud cover
58%
3rd clearest
Wind
6 mph
12th windiest
Solar energy
5.19 kWh/m²
Travel score
6.6
out of 10

Worcester is county seat city in Worcester County, Massachusetts, United States.

Density
2,074/km²
people per km²
Founded
1848

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 81°F in the first days to 78°F by the end.

A typical August day in Worcester reaches about 80°F in the afternoon and slips back to 63°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 88°F. Set against its neighbours, August runs about 2°F cooler than July and about 8°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18264
28264
38164
48164
58164
68164
78164
88164
98164
108164
118064
128063
138063
148063
158063
168063
178063
188062
197962
207962
217962
227962
237962
247961
257861
267861
277861
287860
297860
307860
317760

How August really feels in Worcester

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.

Worcester weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan34° / 20°3.49.86.49.30.0
Feb37° / 21°3.18.65.710.30.0
Mar44° / 29°4.210.75.211.60.9
Apr56° / 39°3.711.31.513.13.7
May67° / 49°3.210.8014.45.9
Jun76° / 58°3.911.50156.5
Jul82° / 64°3.610.6014.86.2
Aug80° / 63°3.810.2013.76.6
Sep72° / 55°3.68.5012.36.9
Oct60° / 44°3.99.80.310.85.0
Nov49° / 35°3.49.11.29.62.1
Dec39° / 26°4.310.55.590.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% 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 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34951
44951
55050
64951
74951
84852
94753
104753
114654
124654
134753
144654
154654
164654
174852
184852
194951
205050
215050
225149
235149
245248
255347
265347
275347
285347
295347
305347
315248

Chance of precipitation in August

Any precipitation

Worcester gets around 3.8 in of rain over 10.2 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 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
436
536
636
736
837
937
1037
1137
1237
1337
1436
1536
1636
1735
1834
1933
2032
2131
2230
2329
2428
2527
2627
2726
2826
2925
3025
3125

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 25% of days. Sticky, muggy-or-worse air turns up on roughly 25% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1182428247
2182428237
3192328237
4192327237
5202327227
6202327227
7202327228
8212327218
9212327217
10212327217
11222427217
12222427217
13222427216
14232427216
15232527215
16232527205
17232527204
18242626204
19242626204
20252626203
21262625193
22272724193
23282724193
24292723183
25302722183
26312721173
27322821173
28332820163
29342820163
30352819153
31352819153

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 6 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
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 18 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 4:44 AM to 5:16 AM, and sunset from 7:03 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:447:03
214.34:457:02
314.24:467:01
414.24:476:59
514.24:486:58
614.14:496:57
714.14:506:56
814.14:516:54
914.04:526:53
1014.04:536:52
1113.94:546:50
1213.94:556:49
1313.94:566:48
1413.84:576:46
1513.84:586:45
1613.74:596:43
1713.75:016:42
1813.65:026:40
1913.65:036:39
2013.65:046:37
2113.55:056:35
2213.55:066:34
2313.45:076:32
2413.45:086:31
2513.35:096:29
2613.35:106:27
2713.25:116:26
2813.25:126:24
2913.15:146:22
3013.15:156:20
3113.05:166:19

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.19 kWh/m².

For context, solar energy here swings from a low near 1.61 kWh/m² to a high of 5.87 kWh/m² in July across the year — August's 5.19 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.8Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Worcester?

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

6.6
Sightseeing
2nd-best month of the year
6.5
Beach & pool
2nd-best month of the year

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

What to pack for Worcester in August

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

In August, Worcester sees daytime highs around 80°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 Worcester in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Worcester peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 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 highHighModerateLowJul 10UV 7Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun7Very high
Jul8Very high
Aug5High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Worcester?

Worcester sits at 42.3°N, 71.8°W, 482 ft above sea level, in United States. The nearest listed city is Auburn, 5.0 mi away.

Topography around Worcester

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

Within 2 miles, the terrain around Worcester has only modest variations in elevation — a maximum elevation change of 351 ft around an average of 551 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,155 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,176 ft.

The land around Worcester is covered by artificial surfaces (52%) and trees (41%) within 2 miles, trees (79%) within 10 miles, and trees (86%) within 50 miles.

2 miles
351 ft
10 miles
1,155 ft
50 miles
3,176 ft
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Auburn 5.0 mi · Shrewsbury 5.0 mi · Holden 6.8 mi · Grafton 6.8 mi · Marlborough 14 mi · Milford 17 mi · Ashland 17 mi · Southbridge 17 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 Worcester (42.2626°, -71.8023°, elevation 482 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).