Westerly weather in April

In April, Westerly sees average daytime highs of 55°F and overnight lows near 42°F, with 3.8 in of precipitation across 10.6 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 51°F in the first days to 59°F by the end. The sky is clear or mostly clear about 26% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 42 min by month's end. Set against the rest of the year, April is Westerly's 11th-clearest and 6th-windiest month. For the whole year in context, see Westerly's year-round climate.

Daytime high
55°
7th warmest
Overnight low
42°
6th coldest
Precipitation
3.8 in
10.6 wet days
Daylight
13 h 06 min
5:14 AM – 6:21 PM
Cloud cover
63%
11th clearest
Wind
8 mph
6th windiest
Solar energy
5.12 kWh/m²
Travel score
3.4
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 April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 51°F in the first days to 59°F by the end.

A typical April day in Westerly reaches about 55°F in the afternoon and slips back to 42°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 46°F and 64°F. Set against its neighbours, April runs about 10°F warmer than March and about 9°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15037
25038
35138
45138
55139
65239
75239
85340
95340
105340
115440
125441
135441
145542
155542
165542
175642
185643
195643
205643
215744
225744
235744
245845
255845
265845
275846
285946
295946
305946

How April really feels in Westerly

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 3 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
3
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Westerly weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14060
24060
34060
44159
54159
64159
74159
84159
94159
104159
114159
124159
134159
144258
154258
164258
174258
184357
194357
204357
214456
224456
234456
244456
254357
264357
274258
284258
294258
304357

Chance of precipitation in April

Any precipitationSnow

Westerly gets around 3.8 in of rain and snow over 10.6 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 35% and peaks near 37% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1366
2365
3365
4375
5375
6375
7364
8364
9364
10354
11353
12353
13343
14343
15342
16342
17342
18352
19351
20351
21351
22351
23351
24351
25351
26361
27360
28360
29360
30360

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
9991
10991
11991
12991
13991
14991
15991
16991
17991
18982
19982
20982
21982
22982
23982
24982
25982
26982
27973
28973
29973
30973

Wind in April

Winds average 8 mph in April.

Across April, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 5:40 AM to 4:53 AM, and sunset from 6:04 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:406:04
212.55:386:05
312.55:366:07
412.65:346:08
512.65:336:09
612.65:316:10
712.75:296:11
812.75:286:12
912.85:266:13
1012.85:246:14
1112.95:226:15
1212.95:216:16
1313.05:196:17
1413.05:186:19
1513.15:166:20
1613.15:146:21
1713.25:136:22
1813.25:116:23
1913.25:106:24
2013.35:086:25
2113.35:066:26
2213.45:056:27
2313.45:036:28
2413.55:026:30
2513.55:006:31
2613.54:596:32
2713.64:576:33
2813.64:566:34
2913.74:556:35
3013.74:536:36

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.12 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 — April's 5.12 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.9Bright
94.9Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in April

Hazard calendar for Westerly

In seasonPeak

None of Westerly's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 April a good time to visit Westerly?

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

3.4
Sightseeing
7th-best month of the year
0.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Westerly.

What to pack for Westerly in April

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

In April, Westerly sees daytime highs around 55°F and nights near 42°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Westerly in April

The nearest coast averages about 44°F in April — 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 April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — 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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).