Westerly weather in July

In July, Westerly sees average daytime highs of 80°F and overnight lows near 67°F, with 3.1 in of rain across 10.3 wet days and about 14.7 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 80°F through the month. The sky is clear or mostly clear about 29% 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 Westerly's 6th-clearest and 11th-windiest month. For the whole year in context, see Westerly's year-round climate.

Daytime high
80°
1st warmest
Overnight low
67°
12th coldest
Rainfall
3.1 in
10.3 wet days
Daylight
14 h 42 min
4:31 AM – 7:14 PM
Cloud cover
58%
6th clearest
Wind
7 mph
11th windiest
Solar energy
6.14 kWh/m²
Travel score
6.5
out of 10

Westerly is town in Washington County, Rhode Island, United States.

Founded
1661

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 80°F through the month.

A typical July day in Westerly reaches about 80°F in the afternoon and slips back to 67°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 87°F. Set against its neighbours, July runs about 6°F warmer than June and about 1°F warmer than August.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
17865
27865
37865
47966
57966
67966
77966
87966
98066
108067
118067
128067
138067
148067
158067
168067
178067
188067
198067
208067
218068
228068
238068
248068
258068
268068
278068
288068
298068
308068
318068

How July really feels in Westerly

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.

Westerly weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 25°3.71059.40.0
Feb39° / 26°3.28.94.510.30.0
Mar45° / 33°4.310.63.811.71.0
Apr55° / 42°3.810.60.713.13.4
May64° / 51°3.310.8014.35.6
Jun73° / 60°3.610.1014.96.6
Jul80° / 67°3.110.3014.76.5
Aug78° / 66°3.99.8013.76.8
Sep72° / 59°3.88.8012.36.9
Oct62° / 49°4.29.20.110.95.4
Nov51° / 39°3.790.59.72.7
Dec43° / 31°4.510.43.29.10.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 22% of July, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
25050
35050
45050
55149
65248
75149
85248
95248
105347
115248
125347
135347
145248
155248
165149
175149
185149
195050
204951
214951
224951
234951
244852
254951
264951
275050
285149
295149
305248
315248

Chance of precipitation in July

Any precipitation

Westerly gets around 3.1 in of rain over 10.3 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
231
330
430
530
630
730
830
931
1031
1131
1232
1332
1433
1533
1634
1734
1835
1935
2036
2136
2236
2336
2436
2536
2636
2736
2836
2936
3036
3135

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 33% 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 (%)
1142228306
2132228306
3132228307
4122128308
5122129308
6122129309
7112129309
81021293010
91021293010
10921283111
11920283111
12820283212
13820283213
14720283313
15719273314
16719273314
17619263415
18619263415
19519263515
20519253516
21518253516
22518253616
23518253616
24518253616
25518263616
26518263516
27518263516
28518263516
29518263416
30618273416
31618273316

Wind in July

Winds average 7 mph in July.

Across July, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 4:22 AM to 4:45 AM, and sunset from 7:19 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.04:227:19
214.94:227:19
314.94:237:19
414.94:237:19
514.94:247:19
614.94:257:19
714.94:257:18
814.94:267:18
914.94:267:18
1014.84:277:17
1114.84:287:17
1214.84:287:16
1314.84:297:16
1414.84:307:15
1514.74:317:15
1614.74:317:14
1714.74:327:14
1814.74:337:13
1914.64:347:12
2014.64:357:12
2114.64:367:11
2214.64:377:10
2314.54:377:09
2414.54:387:09
2514.54:397:08
2614.44:407:07
2714.44:417:06
2814.44:427:05
2914.34:437:04
3014.34:447:03
3114.34:457:02

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.14 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 6.16 kWh/m² in June across the year — July's 6.14 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.2Intense
156.2Intense
166.2Intense
176.1Intense
186.1Intense
196.1Intense
206.0Intense
216.0Intense
226.0Bright
236.0Bright
245.9Bright
255.9Bright
265.9Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in July

Hazard calendar for Westerly

In seasonPeak

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

Westerly 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 Westerly?

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

6.5
Sightseeing
4th-best month of the year
6.5
Beach & pool
1st-best month of the year

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

What to pack for Westerly in July

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

In July, Westerly sees daytime highs around 80°F and nights near 67°F. Pack sun protection. Worth having: light clothes and rain gear. About 10 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Westerly in July

The nearest coast averages about 67°F in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 11 mi away) is warmest in August at about 69°F and coldest in February near 39°F.

It's comfortable for a long swim from Jul 29 to Aug 30 — about 1.1 months when the water holds above 68°F.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan43Bracing
Feb39Bracing
Mar40Bracing
Apr44Bracing
May51Bracing
Jun60Cool
Jul67Cool
Aug69Refreshing
Sep67Cool
Oct62Cool
Nov55Bracing
Dec48Bracing

UV index in Westerly 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 Westerly peaks around July 10 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 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 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Westerly in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Westerly is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (November, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1515 µg/m³Nov 206 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar11Good
Apr12Good
May14Moderate
Jun14Moderate
Jul15Moderate
Aug13Moderate
Sep10Good
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is Westerly?

Westerly sits at 41.4°N, 71.8°W, 36 ft above sea level, in United States. The nearest listed city is Ledyard, 11 mi away.

Topography around Westerly

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

Within 2 miles, the terrain around Westerly has only modest variations in elevation — a maximum elevation change of 282 ft around an average of 89 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 574 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,325 ft.

The land around Westerly is covered by trees (65%) within 2 miles, trees (56%) and water (33%) within 10 miles, and trees (48%) and water (45%) within 50 miles.

2 miles
282 ft
10 miles
574 ft
50 miles
1,325 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Ledyard 11 mi · New London 14 mi · Waterford 16 mi · Norwich 16 mi · South Kingstown 16 mi · Montville Center 18 mi · Narragansett 21 mi · Plainfield 21 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 Westerly (41.3776°, -71.8273°, elevation 36 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. 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).