New Brunswick weather in June

In June, New Brunswick sees average daytime highs of 81°F and overnight lows near 63°F, with 4.2 in of rain across 11.2 wet days and about 14.8 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 77°F in the first days to 84°F by the end. The sky is clear or mostly clear about 23% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of June to 14 h 54 min by month's end. Set against the rest of the year, June is New Brunswick's 10th-clearest and 10th-windiest month. For the whole year in context, see New Brunswick's year-round climate.

Daytime high
81°
3rd warmest
Overnight low
63°
10th coldest
Rainfall
4.2 in
11.2 wet days
Daylight
14 h 54 min
4:32 AM – 7:24 PM
Cloud cover
63%
10th clearest
Wind
6 mph
10th windiest
Solar energy
5.97 kWh/m²
Travel score
6.0
out of 10

New Brunswick is city in and county seat of Middlesex County, New Jersey, United States.

Density
3,827/km²
people per km²
Founded
1730

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 77°F in the first days to 84°F by the end.

A typical June day in New Brunswick reaches about 81°F in the afternoon and slips back to 63°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 91°F. Set against its neighbours, June runs about 9°F warmer than May and about 5°F cooler than July.

50°60°70°80°90°151015202530
Avg high (°F)Avg low (°F)
17759
27759
37759
47860
57860
67860
77861
87961
97961
107962
118062
128062
138062
148063
158163
168163
178164
188264
198264
208264
218265
228365
238365
248365
258366
268466
278466
288467
298467
308567

How June really feels in New Brunswick

Once humidity and wind are folded in, June 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

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

New Brunswick weather by month

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

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 26°3.39.24.19.40.0
Feb42° / 27°3.08.53.510.40.4
Mar50° / 34°4.210.52.911.72.3
Apr62° / 44°3.710.70.3135.0
May71° / 54°3.611.4014.26.3
Jun81° / 63°4.211.2014.86.0
Jul86° / 69°4.211.2014.64.9
Aug83° / 67°4.110.2013.65.8
Sep76° / 60°4.09.1012.36.9
Oct65° / 49°3.78.60.110.96.1
Nov54° / 38°3.07.90.49.73.4
Dec44° / 31°4.09.42.29.20.8

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 20% of June, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24258
34159
44159
54159
64159
74159
84159
94159
104159
114159
124159
134258
144258
154357
164357
174357
184357
194456
204456
214456
224555
234555
244456
254555
264555
274555
284654
294753
304753

Chance of precipitation in June

Any precipitation

New Brunswick gets around 4.2 in of rain over 11.2 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
237
336
436
536
636
736
836
936
1036
1136
1236
1336
1436
1537
1637
1737
1837
1937
2037
2137
2237
2337
2437
2537
2637
2737
2837
2937
3037

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 24% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1472022101
2462023101
3442023111
4432123121
5422123121
6412123132
7402223132
8392223142
9382223152
10372223153
11352323163
12342323173
13322324183
14302325194
15292325194
16282226204
17272226214
18262226215
19252227225
20242127236
21232127236
22222127247
23212127247
24202127257
25192127258
26182127268
27172127269
281720262710
291720262710
301620252711

Wind in June

Winds average 6 mph in June.

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

0246810151015202530
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 42 min at the start of June to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:35 AM to 4:35 AM, and sunset from 7:15 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:357:15
214.74:357:16
314.74:347:17
414.74:347:18
514.74:347:18
614.84:337:19
714.84:337:20
814.84:337:20
914.84:337:21
1014.84:327:21
1114.84:327:22
1214.84:327:22
1314.94:327:23
1414.94:327:23
1514.94:327:24
1614.94:327:24
1714.94:327:25
1814.94:327:25
1914.94:327:25
2014.94:327:26
2114.94:327:26
2214.94:327:26
2314.94:337:26
2414.94:337:27
2514.94:337:27
2614.94:337:27
2714.94:347:27
2814.94:347:27
2914.94:347:27
3014.94:357:27

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.97 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.77 kWh/m² to a high of 5.97 kWh/m² in June across the year — June's 5.97 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
166.0Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.2Intense
Planning a trip in June

Hazard calendar for New Brunswick

In seasonPeak

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

New Brunswick 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 June a good time to visit New Brunswick?

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

6.0
Sightseeing
4th-best month of the year
6.3
Beach & pool
3rd-best month of the year

June is a reasonable time to visit New Brunswick for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for New Brunswick in June

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

In June, New Brunswick sees daytime highs around 81°F and nights near 63°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near New Brunswick in June

The nearest coast averages about 65°F in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 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 New Brunswick in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in New Brunswick 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 New Brunswick in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in New Brunswick 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 New Brunswick?

New Brunswick sits at 40.5°N, 74.5°W, 85 ft above sea level, in United States. The nearest listed city is Somerset, 1.9 mi away.

Topography around New Brunswick

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

Within 2 miles, the terrain around New Brunswick has only modest variations in elevation — a maximum elevation change of 200 ft around an average of 89 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 650 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,726 ft.

The land around New Brunswick is covered by trees (43%) and artificial surfaces (41%) within 2 miles, trees (58%) and artificial surfaces (22%) within 10 miles, and trees (57%) within 50 miles.

2 miles
200 ft
10 miles
650 ft
50 miles
1,726 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
June weather nearby: Somerset 1.9 mi · North Brunswick 2.5 mi · Piscataway 3.1 mi · Edison 3.1 mi · South River 4.3 mi · East Brunswick 4.3 mi · Sayreville 5.0 mi · Sayreville Junction 6.8 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 New Brunswick (40.4862°, -74.4518°, elevation 85 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).