Setauket-East Setauket weather in April

In April, Setauket-East Setauket sees average daytime highs of 53°F and overnight lows near 44°F, with 3.9 in of precipitation across 10.7 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 49°F in the first days to 57°F by the end. The sky is clear or mostly clear about 30% 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 Setauket-East Setauket's 11th-clearest and 7th-windiest month. For the whole year in context, see Setauket-East Setauket's year-round climate.

Daytime high
53°
7th warmest
Overnight low
44°
6th coldest
Precipitation
3.9 in
10.7 wet days
Daylight
13 h 06 min
5:20 AM – 6:25 PM
Cloud cover
61%
11th clearest
Wind
10 mph
7th windiest
Solar energy
5.23 kWh/m²
Travel score
3.0
out of 10

Setauket-East Setauket is former census-designated place in Suffolk County, New York, United States.

Density
641/km²
people per km²

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 49°F in the first days to 57°F by the end.

A typical April day in Setauket-East Setauket reaches about 53°F in the afternoon and slips back to 44°F overnight — a 9°F spread between the day's warmth and the night's chill. On most days the high lands between 46°F and 60°F. Set against its neighbours, April runs about 9°F warmer than March and about 10°F cooler than May.

30°40°50°60°70°151015202530
Avg high (°F)Avg low (°F)
14839
24940
34940
44940
55040
65041
75041
85141
95142
105142
115242
125243
135243
145343
155344
165344
175444
185445
195445
205545
215546
225546
235546
245646
255647
265647
275747
285748
295748
305848

How April really feels in Setauket-East Setauket

Once humidity and wind are folded in, April 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

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

Setauket-East Setauket 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
Jan38° / 29°3.79.74.29.40.0
Feb38° / 29°3.49.13.810.40.0
Mar44° / 35°4.610.63.311.70.7
Apr53° / 44°3.910.70.413.13.0
May63° / 53°3.510.8014.35.3
Jun72° / 64°3.69.7014.96.7
Jul78° / 70°3.29.2014.66.9
Aug78° / 70°4.09.5013.67.0
Sep72° / 64°3.89.1012.36.9
Oct62° / 54°4.49.40.110.95.5
Nov53° / 44°3.79.10.39.73.0
Dec44° / 35°4.810.62.49.10.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54555
64555
74555
84555
94555
104555
114555
124555
134555
144654
154654
164654
174654
184654
194654
204654
214654
224654
234654
244654
254654
264555
274555
284654
294654
304654

Chance of precipitation in April

Any precipitationSnow

Setauket-East Setauket gets around 3.9 in of rain and snow over 10.7 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 36% and peaks near 37% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1364
2374
3374
4374
5373
6373
7363
8363
9362
10352
11352
12352
13352
14351
15351
16351
17351
18351
19350
20350
21350
22360
23360
24360
25360
26370
27370
28370
29370
30370

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
91000
101000
111000
121000
131000
141000
151000
161000
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27982
28982
29982
30982

Wind in April

Winds average 10 mph in April.

Across April, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
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
289light breeze
299light breeze
309light 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 5:45 AM to 4:59 AM, and sunset from 6:09 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:456:09
212.55:436:10
312.55:416:11
412.55:406:12
512.65:386:14
612.65:366:15
712.75:356:16
812.75:336:17
912.85:316:18
1012.85:306:19
1112.95:286:20
1212.95:266:21
1313.05:256:22
1413.05:236:23
1513.05:226:24
1613.15:206:25
1713.15:186:26
1813.25:176:27
1913.25:156:29
2013.35:146:30
2113.35:126:31
2213.45:116:32
2313.45:096:33
2413.45:086:34
2513.55:066:35
2613.55:056:36
2713.65:036:37
2813.65:026:38
2913.65:006:39
3013.74:596:40

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.23 kWh/m².

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 6.34 kWh/m² in June across the year — April's 5.23 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Setauket-East Setauket

In seasonPeak

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

Setauket-East Setauket 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 Setauket-East Setauket?

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

3.0
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 Setauket-East Setauket.

What to pack for Setauket-East Setauket in April

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

In April, Setauket-East Setauket sees daytime highs around 53°F and nights near 44°F. Pack a warm layer. Worth having: rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Setauket-East Setauket 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 14 mi away) is warmest in August at about 74°F and coldest in February near 35°F.

It's comfortable for a long swim from Jul 1 to Sep 30 — about 3 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb35Bracing
Mar37Bracing
Apr44Bracing
May54Bracing
Jun65Cool
Jul72Refreshing
Aug74Refreshing
Sep71Refreshing
Oct64Cool
Nov55Bracing
Dec46Bracing

UV index in Setauket-East Setauket 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 Setauket-East Setauket peaks around July 11 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 11UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Setauket-East Setauket 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 Setauket-East Setauket is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (November, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1120 µg/m³Nov 188 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar14Moderate
Apr16Moderate
May19Moderate
Jun20Moderate
Jul20Moderate
Aug17Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Setauket-East Setauket?

Setauket-East Setauket sits at 40.9°N, 73.1°W, 102 ft above sea level, in United States. The nearest listed city is East Setauket, 0.6 mi away.

Topography around Setauket-East Setauket

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

Within 2 miles, the terrain around Setauket-East Setauket has only modest variations in elevation — a maximum elevation change of 285 ft around an average of 121 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 338 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,457 ft.

The land around Setauket-East Setauket is covered by trees (77%) within 2 miles, water (45%) and trees (42%) within 10 miles, and water (47%) and trees (41%) within 50 miles.

2 miles
285 ft
10 miles
338 ft
50 miles
1,457 ft
treesgrasslandartificial surfaceswaterwetland
April weather nearby: East Setauket 0.6 mi · Centereach 5.0 mi · Selden 5.6 mi · Coram 6.8 mi · Lake Ronkonkoma 6.8 mi · Smithtown 7.5 mi · Farmingville 8.1 mi · Ronkonkoma 8.1 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 Setauket-East Setauket (40.9306°, -73.1018°, elevation 102 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).