Yarmouth weather in July

In July, Yarmouth sees average daytime highs of 71°F and overnight lows near 67°F, with 2.5 in of rain across 7.7 wet days and about 14.7 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 69°F in the first days to 72°F by the end. The sky is clear or mostly clear about 38% of the time in July, and the air most often feels muggy.

Daylight stretches from about 15 hours at the start of July to 14 h 18 min by month's end. Set against the rest of the year, July is Yarmouth's 3rd-clearest and 11th-windiest month. For the whole year in context, see Yarmouth's year-round climate.

Daytime high
71°
2nd warmest
Overnight low
67°
11th coldest
Rainfall
2.5 in
7.7 wet days
Daylight
14 h 42 min
4:24 AM – 7:09 PM
Cloud cover
53%
3rd clearest
Wind
12 mph
11th windiest
Solar energy
6.41 kWh/m²
Travel score
7.0
out of 10

Yarmouth is town in Massachusetts, United States.

Density
345/km²
people per km²
Founded
1639

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 69°F in the first days to 72°F by the end.

A typical July day in Yarmouth reaches about 71°F in the afternoon and slips back to 67°F overnight — a 4°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 75°F. Set against its neighbours, July runs about 7°F warmer than June and on par with August.

60°65°70°75°80°151015202531
Avg high (°F)Avg low (°F)
16964
26965
36965
46965
56965
67065
77066
87066
97066
107066
117166
127167
137167
147167
157167
167167
177167
187167
197167
207167
217168
227268
237268
247268
257268
267268
277268
287268
297268
307268
317268

How July really feels in Yarmouth

Once humidity and wind are folded in, July 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

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Yarmouth weather by month

How July compares with the rest of the year at a glance. July 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
Jan38° / 30°4.311.24.79.30.0
Feb38° / 30°3.8104.710.30.0
Mar41° / 34°4.811.23.711.70.1
Apr47° / 42°4.311.30.613.11.5
May55° / 50°3.610.3014.33.5
Jun64° / 60°3.28.20155.9
Jul71° / 67°2.57.7014.77.0
Aug71° / 67°3.17.8013.77.1
Sep66° / 62°4.08.3012.36.5
Oct59° / 54°4.810.1010.94.6
Nov51° / 44°4.4100.39.62.4
Dec43° / 36°5.1122.890.6

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35545
45644
55743
65743
75743
85842
95842
105941
115941
125941
136040
145941
155941
165842
175842
185743
195743
205644
215644
225545
235545
245545
255545
265446
275446
285446
295446
305446
315446

Chance of precipitation in July

Any precipitation

Yarmouth gets around 2.5 in of rain over 7.7 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
123
223
323
423
523
623
723
823
923
1023
1123
1223
1323
1424
1524
1624
1724
1825
1925
2025
2126
2226
2326
2427
2527
2627
2727
2827
2927
3027
3127

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 46% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
152544252
242444262
342344272
442244283
532144283
632044293
731944304
831943314
931842325
1021841335
1121740346
1221739366
1321638377
1421636387
1521635398
1621534408
1721533418
1821532429
1921431439
20214314410
21213304510
22213294610
23213294611
24212294611
25212294711
26112294611
27112294612
28112294612
29112304512
30112304412
31112314412

Wind in July

Winds average 12 mph in July.

Across July, daily wind ranges from about 11 mph on the calmest days to 12 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2711light breeze
2811light breeze
2911light breeze
3011light breeze
3111light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 hours at the start of July to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:14 AM to 4:38 AM, and sunset from 7:14 PM to 6:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.04:147:14
215.04:157:14
315.04:157:14
415.04:167:14
514.94:177:13
614.94:177:13
714.94:187:13
814.94:187:13
914.94:197:12
1014.94:207:12
1114.94:207:12
1214.84:217:11
1314.84:227:11
1414.84:237:10
1514.84:237:10
1614.74:247:09
1714.74:257:08
1814.74:267:08
1914.74:277:07
2014.64:277:06
2114.64:287:06
2214.64:297:05
2314.64:307:04
2414.54:317:03
2514.54:327:02
2614.54:337:01
2714.44:347:00
2814.44:356:59
2914.44:366:58
3014.34:376:57
3114.34:386:56

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.41 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.58 kWh/m² to a high of 6.41 kWh/m² in July across the year — July's 6.41 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.4Intense
176.4Intense
186.4Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.0Intense
Planning a trip in July

Hazard calendar for Yarmouth

In seasonPeak

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

Yarmouth 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 July a good time to visit Yarmouth?

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

7.0
Sightseeing
2nd-best month of the year
4.6
Beach & pool
2nd-best month of the year

July is one of the better times to visit Yarmouth for general sightseeing.

What to pack for Yarmouth in July

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

In July, Yarmouth sees daytime highs around 71°F and nights near 67°F. Pack sun protection. About 8 days see rain.

sun protection

Sea temperature near Yarmouth in July

The nearest coast averages about 66°F in July — 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 68°F and coldest in February near 38°F.

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

30°40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan40Bracing
Feb38Bracing
Mar38Bracing
Apr43Bracing
May50Bracing
Jun59Bracing
Jul66Cool
Aug68Refreshing
Sep65Cool
Oct58Bracing
Nov51Bracing
Dec45Bracing

UV index in Yarmouth in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yarmouth peaks around June 21 at about 8 (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 highHighModerateLowJun 21UV 8Dec 23UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr5High
May7Very high
Jun8Very high
Jul8Very high
Aug5Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Yarmouth?

Yarmouth sits at 41.7°N, 70.2°W, 33 ft above sea level, in United States. The nearest listed city is Barnstable, 3.7 mi away.

Topography around Yarmouth

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

Within 2 miles, the terrain around Yarmouth has only modest variations in elevation — a maximum elevation change of 151 ft around an average of 46 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 253 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 630 ft.

The land around Yarmouth is covered by trees (60%) within 2 miles, water (61%) and trees (30%) within 10 miles, and water (75%) and trees (21%) within 50 miles.

2 miles
151 ft
10 miles
253 ft
50 miles
630 ft
treesgrasslandartificial surfaceswaterwetland
July weather nearby: Barnstable 3.7 mi · Provincetown 24 mi · Duxbury 32 mi · Fairhaven 35 mi · New Bedford 37 mi · Middleborough 37 mi · Hanover 41 mi · Rockland 46 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 Yarmouth (41.7057°, -70.2286°, elevation 33 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).