Hackensack weather in August

In August, Hackensack sees average daytime highs of 81°F and overnight lows near 67°F, with 4.0 in of rain across 11 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 83°F in the first days to 79°F by the end. The sky is clear or mostly clear about 30% 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 Hackensack's 3rd-clearest and 12th-windiest month. For the whole year in context, see Hackensack's year-round climate.

Daytime high
81°
2nd warmest
Overnight low
67°
11th coldest
Rainfall
4.0 in
11 wet days
Daylight
13 h 36 min
5:11 AM – 6:50 PM
Cloud cover
58%
3rd clearest
Wind
5 mph
12th windiest
Solar energy
5.2 kWh/m²
Travel score
6.3
out of 10

Hackensack is city in Bergen County, New Jersey, United States.

Density
3,987/km²
people per km²
Founded
1665

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 83°F in the first days to 79°F by the end.

A typical August day in Hackensack reaches about 81°F in the afternoon and slips back to 67°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 88°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18369
28369
38369
48269
58269
68268
78268
88268
98268
108268
118268
128268
138168
148167
158167
168167
178167
188167
198167
208067
218066
228066
238066
248066
258066
268066
278065
287965
297965
307965
317965

How August really feels in Hackensack

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.

Hackensack 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
Jan37° / 25°3.39.159.40.0
Feb39° / 26°3.08.64.210.40.0
Mar47° / 33°4.210.43.611.71.5
Apr59° / 43°3.710.60.613.14.3
May68° / 53°3.611.4014.36.1
Jun78° / 63°4.011.4014.96.4
Jul83° / 69°4.211014.65.7
Aug81° / 67°4.011013.66.3
Sep74° / 60°4.09.3012.36.9
Oct63° / 49°4.08.70.110.95.6
Nov51° / 39°3.280.69.72.8
Dec42° / 31°4.09.83.69.10.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
25050
35050
45050
55149
65149
75149
85149
95050
105050
115050
124951
134951
145050
155050
165050
175149
185149
195149
205248
215248
225347
235347
245347
255347
265347
275347
285248
295248
305248
315248

Chance of precipitation in August

Any precipitation

Hackensack gets around 4.0 in of rain over 11 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 36% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
538
639
739
839
940
1040
1140
1240
1340
1439
1539
1639
1738
1837
1936
2035
2134
2233
2332
2431
2530
2630
2729
2829
2928
3028
3128

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1715273417
2715273417
3715273317
4716273317
5816263317
6816263317
7816263217
8816263217
9816263217
10916263217
11917263216
12917263216
13917263215
141017263215
151017273215
161017273114
171017283114
181117283013
191117293013
201117303012
211218302912
221218302812
231319302711
241420302611
251420302511
261521302410
271522292410
281622292310
291723282310
301723282210
311824272210

Wind in August

Winds average 5 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
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
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 4:56 AM to 5:26 AM, and sunset from 7:08 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.24:567:08
214.24:577:07
314.14:587:06
414.14:597:05
514.15:007:04
614.05:017:03
714.05:027:02
814.05:037:00
913.95:046:59
1013.95:056:58
1113.85:066:56
1213.85:076:55
1313.85:086:54
1413.75:096:52
1513.75:106:51
1613.65:116:50
1713.65:126:48
1813.65:136:47
1913.55:146:45
2013.55:156:44
2113.45:166:42
2213.45:176:41
2313.45:186:39
2413.35:196:38
2513.35:206:36
2613.25:216:34
2713.25:226:33
2813.15:236:31
2913.15:246:30
3013.05:256:28
3113.05:266:26

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.2 kWh/m².

For context, solar energy here swings from a low near 1.72 kWh/m² to a high of 5.95 kWh/m² in June across the year — August's 5.2 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
274.9Bright
284.9Bright
294.9Bright
304.8Bright
314.8Bright
Planning a trip in August

Hazard calendar for Hackensack

In seasonPeak

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

Hackensack 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 Hackensack?

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

6.3
Sightseeing
3rd-best month of the year
6.5
Beach & pool
2nd-best month of the year

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

What to pack for Hackensack in August

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

In August, Hackensack sees daytime highs around 81°F and nights near 67°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Hackensack 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 20 mi away) is warmest in August at about 74°F and coldest in February near 40°F.

It's comfortable for a long swim from Jun 30 to Sep 26 — about 2.9 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan43Bracing
Feb40Bracing
Mar41Bracing
Apr46Bracing
May55Bracing
Jun65Cool
Jul72Refreshing
Aug74Refreshing
Sep71Refreshing
Oct63Cool
Nov55Bracing
Dec48Bracing

UV index in Hackensack 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 Hackensack 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 Hackensack 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 Hackensack is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 159 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar14Moderate
Apr14Moderate
May16Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep13Moderate
Oct10Good
Nov9Good
Dec10Good
Location & terrain

Where is Hackensack?

Hackensack sits at 40.9°N, 74.0°W, 20 ft above sea level, in United States. The nearest listed city is Teaneck, 1.9 mi away.

Topography around Hackensack

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

Within 2 miles, the terrain around Hackensack has only modest variations in elevation — a maximum elevation change of 187 ft around an average of 62 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 886 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,008 ft.

The land around Hackensack is covered by artificial surfaces (54%) and trees (39%) within 2 miles, trees (44%) and artificial surfaces (40%) within 10 miles, and trees (59%) and water (22%) within 50 miles.

2 miles
187 ft
10 miles
886 ft
50 miles
2,008 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Teaneck 1.9 mi · Lodi 1.9 mi · Palisades Park 3.7 mi · New Milford 3.7 mi · Garfield 3.7 mi · Englewood 3.7 mi · Bergenfield 3.7 mi · Elmwood Park 4.3 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 Hackensack (40.8859°, -74.0435°, elevation 20 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).