Mamaroneck weather in August

In August, Mamaroneck sees average daytime highs of 81°F and overnight lows near 68°F, with 3.9 in of rain across 10.5 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 82°F in the first days to 79°F by the end. The sky is clear or mostly clear about 32% 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 Mamaroneck's 3rd-clearest and 12th-windiest month. For the whole year in context, see Mamaroneck's year-round climate.

Daytime high
81°
2nd warmest
Overnight low
68°
11th coldest
Rainfall
3.9 in
10.5 wet days
Daylight
13 h 36 min
5:10 AM – 6:48 PM
Cloud cover
57%
3rd clearest
Wind
6 mph
12th windiest
Solar energy
5.23 kWh/m²
Travel score
6.4
out of 10

Mamaroneck is village in the town of Mamaroneck, Westchester, New York, United States.

Density
1,138/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

Highs ease over the month, from about 82°F in the first days to 79°F by the end.

A typical August day in Mamaroneck reaches about 81°F in the afternoon and slips back to 68°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 87°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18270
28270
38270
48270
58270
68270
78269
88269
98269
108269
118169
128169
138169
148169
158169
168168
178168
188068
198068
208068
218068
228067
238067
248067
258067
267967
277967
287966
297966
307966
317966

How August really feels in Mamaroneck

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.

Mamaroneck weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 26°3.394.69.40.0
Feb39° / 26°3.08.73.910.40.0
Mar46° / 33°4.110.13.211.71.4
Apr58° / 44°3.710.50.413.14.2
May68° / 54°3.411.2014.36.1
Jun77° / 64°3.810.8014.96.5
Jul83° / 70°3.810.9014.65.8
Aug81° / 68°3.910.5013.66.4
Sep74° / 61°3.79.1012.37.0
Oct63° / 50°3.98.5010.95.7
Nov52° / 40°3.28.10.59.72.8
Dec42° / 32°4.09.839.10.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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 48%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45149
55149
65149
75149
85050
95050
105050
115050
125050
134951
145050
155149
165149
175149
185248
195248
205446
215446
225446
235545
245545
255545
265545
275545
285446
295446
305446
315446

Chance of precipitation in August

Any precipitation

Mamaroneck gets around 3.9 in of rain over 10.5 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 34% and peaks near 38% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
336
436
537
637
737
837
938
1038
1138
1238
1338
1438
1538
1637
1737
1836
1935
2034
2133
2232
2331
2430
2530
2629
2728
2828
2928
3027
3127

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13132636221
24142535211
34142535211
44142535210
54142535210
64152534210
74152534211
85152534211
95152534211
105152534211
115152435201
125152435201
135152535191
145152535191
156162535181
166162535171
176162635171
186162635161
196172634160
206172734150
217182733150
227192733140
237192732140
248202831140
258212830130
269212829130
279222828130
2810222728120
2911232727120
3011232727120
3112232626120

Wind in August

Winds average 6 mph in August, the calmest month.

Across August, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 4:55 AM to 5:25 AM, and sunset from 7:07 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.24:557:07
214.24:567:06
314.14:577:05
414.14:577:04
514.14:587:03
614.04:597:02
714.05:007:00
814.05:016:59
913.95:026:58
1013.95:036:57
1113.85:046:55
1213.85:066:54
1313.85:076:53
1413.75:086:51
1513.75:096:50
1613.65:106:48
1713.65:116:47
1813.65:126:46
1913.55:136:44
2013.55:146:43
2113.45:156:41
2213.45:166:40
2313.45:176:38
2413.35:186:36
2513.35:196:35
2613.25:206:33
2713.25:216:32
2813.15:226:30
2913.15:236:28
3013.05:246:27
3113.05:256:25

Solar energy in August

Daily solar energy (kWh/m²)

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

For context, solar energy here swings from a low near 1.72 kWh/m² to a high of 5.98 kWh/m² in June across the year — August's 5.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Hazard calendar for Mamaroneck

In seasonPeak

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

Mamaroneck 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 Mamaroneck?

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

6.4
Sightseeing
3rd-best month of the year
6.5
Beach & pool
2nd-best month of the year

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

What to pack for Mamaroneck in August

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

In August, Mamaroneck sees daytime highs around 81°F and nights near 68°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Mamaroneck in August

The nearest coast averages about 74°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 22 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 Jun 30 to Sep 30 — about 3.1 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
May55Bracing
Jun65Cool
Jul72Refreshing
Aug74Refreshing
Sep71Refreshing
Oct64Cool
Nov55Bracing
Dec46Bracing

UV index in Mamaroneck 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 Mamaroneck 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 Mamaroneck 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 Mamaroneck is worst in July — around 20 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJul 1220 µg/m³Nov 1612 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar17Moderate
Apr17Moderate
May18Moderate
Jun19Moderate
Jul20Moderate
Aug17Moderate
Sep16Moderate
Oct13Moderate
Nov11Good
Dec13Moderate
Location & terrain

Where is Mamaroneck?

Mamaroneck sits at 40.9°N, 73.7°W, 0 ft above sea level, in United States. The nearest listed city is Harrison, 1.9 mi away.

Topography around Mamaroneck

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

Within 2 miles, the terrain around Mamaroneck has only modest variations in elevation — a maximum elevation change of 233 ft around an average of 69 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 623 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,909 ft.

The land around Mamaroneck is covered by trees (54%) and water (22%) within 2 miles, trees (45%) and water (34%) within 10 miles, and trees (53%) and water (31%) within 50 miles.

2 miles
233 ft
10 miles
623 ft
50 miles
1,909 ft
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Harrison 1.9 mi · Rye 3.1 mi · New Rochelle 3.7 mi · Eastchester 3.7 mi · Scarsdale 5.0 mi · Port Chester 5.0 mi · Mount Vernon 6.2 mi · White Plains 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 Mamaroneck (40.9487°, -73.7326°, elevation 0 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).