Sayreville Junction weather in October

In October, Sayreville Junction sees average daytime highs of 65°F and overnight lows near 51°F, with 3.7 in of rain across 8.5 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 69°F in the first days to 60°F by the end. The sky is clear or mostly clear about 39% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 18 min by month's end. Set against the rest of the year, October is Sayreville Junction's 1st-clearest and 7th-windiest month. For the whole year in context, see Sayreville Junction's year-round climate.

Daytime high
65°
6th warmest
Overnight low
51°
7th coldest
Rainfall
3.7 in
8.5 wet days
Daylight
10 h 54 min
6:15 AM – 5:10 PM
Cloud cover
53%
1st clearest
Wind
7 mph
7th windiest
Solar energy
3.12 kWh/m²
Travel score
6.0
out of 10

Sayreville Junction is unincorporated community in New Jersey.

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 69°F in the first days to 60°F by the end.

A typical October day in Sayreville Junction reaches about 65°F in the afternoon and slips back to 51°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 55°F and 74°F. Set against its neighbours, October runs about 11°F cooler than September and about 11°F warmer than November.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17056
27056
36956
46955
56955
66854
76854
86854
96753
106753
116753
126652
136652
146551
156551
166551
176450
186450
196349
206349
216349
226248
236248
246248
256147
266147
276047
286046
296046
305946
315945

How October really feels in Sayreville Junction

Once humidity and wind are folded in, October 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

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

Sayreville Junction weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 27°3.29.23.99.40.0
Feb42° / 28°3.08.53.410.40.3
Mar49° / 35°4.210.42.811.72.0
Apr61° / 46°3.610.60.3134.8
May70° / 55°3.411.1014.26.3
Jun79° / 65°4.011.1014.86.3
Jul84° / 71°4.111.3014.65.2
Aug82° / 69°4.110.6013.66.0
Sep76° / 62°3.79.2012.37.0
Oct65° / 51°3.78.5010.96.0
Nov53° / 40°3.07.80.39.83.3
Dec44° / 32°3.99.529.20.8

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35446
45545
55545
65545
75545
85644
95644
105644
115644
125644
135644
145644
155545
165545
175446
185347
195347
205248
215248
225248
235248
245149
255050
265050
275050
285050
295050
305149
315050

Chance of precipitation in October

Any precipitation

Sayreville Junction gets around 3.7 in of rain over 8.5 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
330
430
529
629
729
829
929
1029
1129
1229
1329
1428
1528
1628
1728
1828
1928
2027
2127
2227
2327
2426
2526
2626
2725
2825
2925
3024
3124

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 76% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1532214101
254221491
357211381
458211281
560201271
662201161
763191161
866181051
967181041
106917941
117116931
127216831
137315831
147614721
157814620
167913620
178013610
188212510
198311510
208311510
218510410
228510410
23869410
24869410
25879310
26879310
27888310
28888310
29898210
30908200
31908200

Wind in October

Winds average 7 mph in October.

Across October, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167light breeze
177light 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
318light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over October. Sunrise moves from 5:59 AM to 6:32 AM, and sunset from 5:34 PM to 4:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:595:34
211.56:005:32
311.56:015:30
411.46:025:29
511.46:035:27
611.36:045:25
711.36:055:24
811.36:065:22
911.26:085:20
1011.26:095:19
1111.16:105:17
1211.16:115:16
1311.06:125:14
1411.06:135:13
1510.96:145:11
1610.96:155:10
1710.96:165:08
1810.86:175:07
1910.86:195:05
2010.76:205:04
2110.76:215:02
2210.66:225:01
2310.66:234:59
2410.66:244:58
2510.56:254:57
2610.56:274:55
2710.46:284:54
2810.46:294:53
2910.46:304:52
3010.36:314:50
3110.36:324:49

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.12 kWh/m².

For context, solar energy here swings from a low near 1.77 kWh/m² to a high of 5.95 kWh/m² in June across the year — October's 3.12 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
213.0Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.7Moderate
292.7Moderate
302.7Moderate
312.6Moderate
Planning a trip in October

Hazard calendar for Sayreville Junction

In seasonPeak

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

Sayreville Junction 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 October a good time to visit Sayreville Junction?

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

6.0
Sightseeing
4th-best month of the year
2.2
Beach & pool
6th-best month of the year

October is a reasonable time to visit Sayreville Junction for sightseeing.

What to pack for Sayreville Junction in October

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

In October, Sayreville Junction sees daytime highs around 65°F and nights near 51°F. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near Sayreville Junction in October

The nearest coast averages about 64°F in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 25 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 27 — about 3 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
Oct64Cool
Nov55Bracing
Dec49Bracing

UV index in Sayreville Junction in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sayreville Junction 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 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 8Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov3Moderate
Dec1Low

Air quality in Sayreville Junction in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sayreville Junction is worst in July — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1318 µg/m³Nov 1410 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar16Moderate
Apr16Moderate
May17Moderate
Jun17Moderate
Jul18Moderate
Aug16Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec12Good
Location & terrain

Where is Sayreville Junction?

Sayreville Junction sits at 40.5°N, 74.3°W, 89 ft above sea level, in United States. The nearest listed city is Sayreville, 1.9 mi away.

Topography around Sayreville Junction

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

Within 2 miles, the terrain around Sayreville Junction has only modest variations in elevation — a maximum elevation change of 200 ft around an average of 62 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 436 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,591 ft.

The land around Sayreville Junction is covered by trees (41%) and artificial surfaces (25%) within 2 miles, trees (50%) and artificial surfaces (24%) within 10 miles, and trees (54%) and water (22%) within 50 miles.

2 miles
200 ft
10 miles
436 ft
50 miles
1,591 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Sayreville 1.9 mi · South River 3.1 mi · Old Bridge 3.7 mi · South Old Bridge 4.3 mi · Piscataway 4.3 mi · Perth Amboy 4.3 mi · Fords 4.3 mi · East Brunswick 5.0 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 Sayreville Junction (40.4654°, -74.3304°, elevation 89 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).