Hauppauge weather in April

In April, Hauppauge sees average daytime highs of 53°F and overnight lows near 44°F, with 3.8 in of precipitation across 10.9 wet days and about 13.1 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 49°F in the first days to 56°F by the end. The sky is clear or mostly clear about 29% 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 Hauppauge's 11th-clearest and 7th-windiest month. For the whole year in context, see Hauppauge's year-round climate.

Daytime high
53°
8th warmest
Overnight low
44°
6th coldest
Precipitation
3.8 in
10.9 wet days
Daylight
13 h 06 min
5:20 AM – 6:26 PM
Cloud cover
61%
11th clearest
Wind
11 mph
7th windiest
Solar energy
5.26 kWh/m²
Travel score
2.8
out of 10

Hauppauge is census-designated place in Suffolk County, New York, United States.

Density
741/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 56°F by the end.

A typical April day in Hauppauge reaches about 53°F in the afternoon and slips back to 44°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 46°F and 59°F. Set against its neighbours, April runs about 8°F warmer than March and about 9°F cooler than May.

30°40°50°60°70°151015202530
Avg high (°F)Avg low (°F)
14840
24840
34940
44941
54941
65041
75042
85042
95142
105143
115143
125143
135244
145244
155244
165345
175345
185345
195446
205446
215446
225446
235547
245547
255547
265547
275648
285648
295648
305749

How April really feels in Hauppauge

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.

Hauppauge weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 30°3.89.949.40.0
Feb39° / 30°3.59.33.710.40.0
Mar44° / 35°4.610.62.911.70.8
Apr53° / 44°3.810.90.413.12.8
May61° / 54°3.510.8014.25.0
Jun71° / 64°3.69.9014.96.6
Jul77° / 71°3.39.4014.67.0
Aug77° / 70°3.99.5013.67.1
Sep71° / 64°3.89.1012.36.9
Oct62° / 55°4.49.2010.95.5
Nov53° / 44°3.78.90.39.73.0
Dec44° / 36°4.810.62.39.10.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24357
34357
44357
54357
64258
74258
84357
94456
104456
114456
124456
134456
144456
154456
164555
174555
184555
194555
204654
214654
224654
234654
244555
254555
264555
274555
284555
294456
304555

Chance of precipitation in April

Any precipitationSnow

Hauppauge gets around 3.8 in of rain and snow over 10.9 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 37% and peaks near 38% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1384
2384
3384
4383
5383
6383
7383
8373
9372
10362
11362
12362
13362
14361
15361
16361
17361
18361
19360
20360
21360
22360
23360
24360
25360
26360
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
27991
28982
29982
30982

Wind in April

Winds average 11 mph in April.

Across April, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2011light breeze
2111light breeze
2211light breeze
2311light breeze
2411light breeze
2511light breeze
2611light breeze
2710light breeze
2810light breeze
2910light breeze
3010light 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 5:00 AM, and sunset from 6:10 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:456:10
212.55:446:11
312.55:426:12
412.55:406:13
512.65:396:14
612.65:376:15
712.75:356:16
812.75:336:17
912.85:326:18
1012.85:306:19
1112.95:296:20
1212.95:276:21
1313.05:256:22
1413.05:246:23
1513.05:226:25
1613.15:206:26
1713.15:196:27
1813.25:176:28
1913.25:166:29
2013.35:146:30
2113.35:136:31
2213.35:116:32
2313.45:106:33
2413.45:086:34
2513.55:076:35
2613.55:056:36
2713.65:046:37
2813.65:026:38
2913.65:016:40
3013.75:006:41

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.26 kWh/m².

For context, solar energy here swings from a low near 1.76 kWh/m² to a high of 6.38 kWh/m² in June across the year — April's 5.26 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Hauppauge

In seasonPeak

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

Hauppauge 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 Hauppauge?

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

2.8
Sightseeing
8th-best month of the year
0.0
Beach & pool
8th-best month of the year

April is a weaker month for outdoor sightseeing in Hauppauge.

What to pack for Hauppauge in April

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

In April, Hauppauge 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 Hauppauge in April

The nearest coast averages about 45°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 73°F and coldest in February near 40°F.

It's comfortable for a long swim from Jul 3 to Sep 23 — about 2.7 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan43Bracing
Feb40Bracing
Mar40Bracing
Apr45Bracing
May54Bracing
Jun64Cool
Jul72Refreshing
Aug73Refreshing
Sep70Refreshing
Oct63Cool
Nov55Bracing
Dec49Bracing

UV index in Hauppauge 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 Hauppauge 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 Hauppauge 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 Hauppauge is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1018 µg/m³Nov 169 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr16Moderate
May18Moderate
Jun18Moderate
Jul19Moderate
Aug16Moderate
Sep13Moderate
Oct10Good
Nov9Good
Dec10Good
Location & terrain

Where is Hauppauge?

Hauppauge sits at 40.8°N, 73.2°W, 62 ft above sea level, in United States. The nearest listed city is Smithtown, 1.9 mi away.

Topography around Hauppauge

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

Within 2 miles, the terrain around Hauppauge has only modest variations in elevation — a maximum elevation change of 246 ft around an average of 92 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 361 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,401 ft.

The land around Hauppauge is covered by trees (66%) and artificial surfaces (20%) within 2 miles, trees (57%) within 10 miles, and water (51%) and trees (36%) within 50 miles.

2 miles
246 ft
10 miles
361 ft
50 miles
1,401 ft
treesgrasslandartificial surfaceswaterwetland
April weather nearby: Smithtown 1.9 mi · Central Islip 2.5 mi · Ronkonkoma 3.1 mi · Lake Ronkonkoma 3.7 mi · Brentwood 3.7 mi · Commack 5.0 mi · Kings Park 5.0 mi · Centereach 5.6 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 Hauppauge (40.8257°, -73.2026°, elevation 62 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).