Melville weather in August

In August, Melville sees average daytime highs of 77°F and overnight lows near 70°F, with 4.0 in of rain across 9.8 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 77°F through the month. The sky is clear or mostly clear about 36% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 12 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Melville's 3rd-clearest and 12th-windiest month. For the whole year in context, see Melville's year-round climate.

Daytime high
77°
2nd warmest
Overnight low
70°
11th coldest
Rainfall
4.0 in
9.8 wet days
Daylight
13 h 36 min
5:09 AM – 6:47 PM
Cloud cover
53%
3rd clearest
Wind
8 mph
12th windiest
Solar energy
5.47 kWh/m²
Travel score
7.0
out of 10

Melville is hamlet on Long Island, New York, United States.

Density
606/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 77°F through the month.

A typical August day in Melville reaches about 77°F in the afternoon and slips back to 70°F overnight — a 7°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 82°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

60°70°80°151015202531
Avg high (°F)Avg low (°F)
17872
27871
37871
47871
57871
67871
77871
87871
97871
107871
117871
127871
137771
147771
157770
167770
177770
187770
197770
207770
217770
227670
237669
247669
257669
267669
277669
287669
297669
307668
317568

How August really feels in Melville

Once humidity and wind are folded in, August 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

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

Melville weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan38° / 29°3.79.83.99.40.0
Feb39° / 29°3.59.23.710.40.0
Mar44° / 35°4.610.43.111.70.8
Apr53° / 44°3.910.80.313.12.9
May62° / 54°3.510.9014.25.2
Jun72° / 64°3.710.3014.96.5
Jul78° / 71°3.59.9014.66.9
Aug77° / 70°4.09.8013.67.0
Sep71° / 64°3.89.2012.36.9
Oct62° / 54°4.49010.95.5
Nov52° / 44°3.68.90.39.72.9
Dec44° / 35°4.710.52.49.10.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35644
45644
55644
65644
75545
85545
95545
105446
115446
125446
135446
145446
155446
165446
175545
185644
195644
205644
215743
225842
235842
245941
255941
265941
275941
285941
295941
305941
315842

Chance of precipitation in August

Any precipitation

Melville gets around 4.0 in of rain over 9.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
333
433
533
634
735
835
936
1036
1137
1237
1337
1437
1536
1636
1735
1834
1933
2032
2131
2230
2329
2428
2527
2627
2726
2826
2926
3025
3126

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 61% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11101937331
22101936321
32101936321
42102036321
52102036321
62102036311
73102036311
83102136301
93102136301
103102136291
113102236281
123102236271
133102237271
143112237261
153112237251
163112238241
173122238231
183132338231
193132338221
203142338211
213152438201
223152437200
233162537190
244172536190
254172635180
264182634170
275182734170
285182733170
296192732160
306192732160
317192831160

Wind in August

Winds average 8 mph in August, the calmest month.

Across August, 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.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light 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
319light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 12 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over August. Sunrise moves from 4:54 AM to 5:24 AM, and sunset from 7:06 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.24:547:06
214.24:557:05
314.14:567:04
414.14:577:02
514.14:587:01
614.04:597:00
714.05:006:59
814.05:016:58
913.95:026:56
1013.95:036:55
1113.85:046:54
1213.85:056:52
1313.85:066:51
1413.75:076:50
1513.75:086:48
1613.65:096:47
1713.65:106:45
1813.65:116:44
1913.55:126:43
2013.55:136:41
2113.45:146:40
2213.45:156:38
2313.35:166:36
2413.35:176:35
2513.35:186:33
2613.25:196:32
2713.25:206:30
2813.15:216:29
2913.15:226:27
3013.05:236:25
3113.05:246:24

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.47 kWh/m².

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 6.23 kWh/m² in June across the year — August's 5.47 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.1Bright
315.0Bright
Planning a trip in August

Hazard calendar for Melville

In seasonPeak

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

Melville 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 August a good time to visit Melville?

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

7.0
Sightseeing
1st-best month of the year
6.3
Beach & pool
2nd-best month of the year

August is one of the better times to visit Melville for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Melville in August

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

In August, Melville sees daytime highs around 77°F and nights near 70°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Melville in August

The nearest coast averages about 73°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 12 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 2 to Sep 24 — about 2.8 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan43Bracing
Feb40Bracing
Mar40Bracing
Apr46Bracing
May54Bracing
Jun64Cool
Jul72Refreshing
Aug73Refreshing
Sep70Refreshing
Oct63Cool
Nov55Bracing
Dec48Bracing

UV index in Melville in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Melville 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 Melville in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Melville 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 Melville?

Melville sits at 40.8°N, 73.4°W, 135 ft above sea level, in United States. The nearest listed city is Plainview, 3.1 mi away.

Topography around Melville

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

Within 2 miles, the terrain around Melville has only modest variations in elevation — a maximum elevation change of 331 ft around an average of 200 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 423 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,617 ft.

The land around Melville is covered by trees (67%) and artificial surfaces (20%) within 2 miles, trees (53%) and artificial surfaces (25%) within 10 miles, and water (46%) and trees (39%) within 50 miles.

2 miles
331 ft
10 miles
423 ft
50 miles
1,617 ft
treesgrasslandartificial surfacesbare terrainwaterwetland
August weather nearby: Plainview 3.1 mi · Huntington Station 4.3 mi · Dix Hills 4.3 mi · Bethpage 5.0 mi · Deer Park 5.0 mi · Syosset 5.0 mi · Huntington 5.0 mi · Hicksville 6.2 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 Melville (40.7934°, -73.4151°, elevation 135 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).