Gloucester weather in August

In August, Gloucester sees average daytime highs of 70°F and overnight lows near 65°F, with 3.2 in of rain across 7.9 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 70°F through the month. The sky is clear or mostly clear about 40% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Gloucester's 2nd-clearest and 12th-windiest month. For the whole year in context, see Gloucester's year-round climate.

Daytime high
70°
2nd warmest
Overnight low
65°
12th coldest
Rainfall
3.2 in
7.9 wet days
Daylight
13 h 42 min
4:54 AM – 6:39 PM
Cloud cover
52%
2nd clearest
Wind
10 mph
12th windiest
Solar energy
5.4 kWh/m²
Travel score
6.9
out of 10

Gloucester is city on Cape Ann in Essex County, Massachusetts, United States.

Density
277/km²
people per km²
Founded
1623

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 70°F through the month.

A typical August day in Gloucester reaches about 70°F in the afternoon and slips back to 65°F overnight — a 5°F spread between the day's warmth and the night's chill. On most days the high lands between 65°F and 75°F. Set against its neighbours, August runs on par with July and about 5°F warmer than September.

60°65°70°75°80°151015202531
Avg high (°F)Avg low (°F)
17166
27166
37166
47166
57166
67166
77166
87166
97166
107166
117166
127066
137066
147066
157066
167065
177065
187065
197065
207065
217065
227065
237065
246965
256965
266964
276964
286964
296964
306964
316964

How August really feels in Gloucester

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.

Gloucester weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 26°4.310.75.89.20.0
Feb37° / 27°3.89.5510.30.0
Mar40° / 32°5.211.54.411.60.1
Apr47° / 41°4.811.21.113.11.5
May55° / 49°3.910.8014.43.6
Jun64° / 59°3.79.5015.15.8
Jul70° / 65°2.78.6014.86.8
Aug70° / 65°3.27.9013.76.9
Sep65° / 60°3.88.2012.36.3
Oct57° / 51°5.210.50.110.84.2
Nov49° / 42°4.610.40.69.62.0
Dec41° / 33°5.411.43.88.90.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% 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 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35842
45743
55743
65743
75743
85644
95545
105545
115545
125545
135545
145545
155545
165545
175644
185644
195743
205743
215842
225941
235941
246139
256139
266139
276139
286139
296139
306139
316040

Chance of precipitation in August

Any precipitation

Gloucester gets around 3.2 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 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
227
327
427
527
627
727
827
927
1027
1127
1227
1327
1427
1527
1627
1727
1826
1926
2026
2125
2225
2325
2424
2524
2624
2724
2824
2924
3024
3124

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 43% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121841372
221841362
321842362
421842362
521842352
621843352
721843352
821843342
931844332
1031844332
1131945322
1231945312
1332045302
1442045292
1542045292
1642146281
1742246271
1852246261
1952345251
2052445241
2162545231
2262645231
2372744221
2472843211
2582943201
2693042191
2793141181
28103140171
29113240171
30123239161
31133338151

Wind in August

Winds average 10 mph in August, the calmest month.

Across August, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 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 78 minutes over August. Sunrise moves from 4:38 AM to 5:11 AM, and sunset from 6:59 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:386:59
214.34:396:58
314.34:406:57
414.24:416:56
514.24:426:54
614.24:436:53
714.14:446:52
814.14:466:51
914.04:476:49
1014.04:486:48
1114.04:496:47
1213.94:506:45
1313.94:516:44
1413.84:526:42
1513.84:536:41
1613.74:546:39
1713.74:556:38
1813.74:566:36
1913.64:586:35
2013.64:596:33
2113.55:006:31
2213.55:016:30
2313.45:026:28
2413.45:036:27
2513.35:046:25
2613.35:056:23
2713.35:066:21
2813.25:076:20
2913.25:096:18
3013.15:106:16
3113.15:116:15

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.4 kWh/m².

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 6.09 kWh/m² in July across the year — August's 5.4 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in August

Hazard calendar for Gloucester

In seasonPeak

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

Gloucester sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Gloucester?

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

6.9
Sightseeing
1st-best month of the year
4.3
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Gloucester for sightseeing.

What to pack for Gloucester in August

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

In August, Gloucester sees daytime highs around 70°F and nights near 65°F. Worth packing: sun protection. About 8 days see rain.

sun protection

Sea temperature near Gloucester in August

The nearest coast averages about 65°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 65°F and coldest in March near 39°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan42Bracing
Feb39Bracing
Mar39Bracing
Apr42Bracing
May49Bracing
Jun58Bracing
Jul64Cool
Aug65Cool
Sep62Cool
Oct56Bracing
Nov50Bracing
Dec46Bracing

UV index in Gloucester 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 Gloucester 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 highHighHighModerateLowJul 10UV 7Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun7High
Jul7Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Gloucester?

Gloucester sits at 42.6°N, 70.7°W, 52 ft above sea level, in United States. The nearest listed city is Beverly Cove, 11 mi away.

Topography around Gloucester

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

Within 2 miles, the terrain around Gloucester has only modest variations in elevation — a maximum elevation change of 240 ft around an average of 56 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 272 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,230 ft.

The land around Gloucester is covered by trees (45%) and water (31%) within 2 miles, water (74%) within 10 miles, and trees (47%) and water (45%) within 50 miles.

2 miles
240 ft
10 miles
272 ft
50 miles
1,230 ft
treesgrasslandartificial surfacesbare terrainwaterwetland
August weather nearby: Beverly Cove 11 mi · Beverly 12 mi · Marblehead 12 mi · Salem 14 mi · Danvers 14 mi · Peabody 15 mi · South Peabody 16 mi · Newburyport 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 Gloucester (42.614°, -70.6631°, elevation 52 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).