Newcastle weather in June

In June, Newcastle sees average daytime highs of 17°C and overnight lows near 14°C, with 113 mm of rain across 11.6 wet days and about 9.9 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 45% of the time in June, and the air most often feels dry.

Daylight stretches from about 10 hours at the start of June to 9 h 48 min by month's end. Set against the rest of the year, June is Newcastle's 8th-clearest and 1st-windiest month. For the whole year in context, see Newcastle's year-round climate.

Daytime high
17°
10th warmest
Overnight low
14°
3rd coldest
Rainfall
113 mm
11.6 wet days
Daylight
9 h 48 min
7:58 AM – 5:48 PM
Cloud cover
47%
8th clearest
Wind
20 km/h
1st windiest
Solar energy
2.46 kWh/m²
Travel score
5.5
out of 10

Newcastle is city in New South Wales, Australia.

Density
1,942/km²
people per km²
Founded
1804

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical June day in Newcastle reaches about 17°C in the afternoon and slips back to 14°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 19°C. Set against its neighbours, June runs about 2°C cooler than May and on par with July.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11815
21815
31815
41815
51815
61814
71714
81714
91714
101714
111714
121714
131714
141714
151714
161714
171714
181714
191714
201714
211713
221713
231713
241713
251713
261713
271713
281713
291713
301713

Newcastle weather by month

How June compares with the rest of the year at a glance. June is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 21°769.513.97.2
Feb24° / 21°979.813.27.0
Mar23° / 20°9811.712.36.8
Apr21° / 18°8711.211.26.6
May19° / 16°9410.710.36.2
Jun17° / 14°11311.69.95.5
Jul16° / 13°739105.6
Aug17° / 13°567.210.86.3
Sep19° / 15°536.611.86.9
Oct20° / 16°638.412.86.8
Nov21° / 18°819.613.76.6
Dec23° / 20°709.814.17.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16139
26139
36040
45941
56040
65941
75941
85941
95941
105941
116040
126040
136139
146238
156337
166436
176535
186634
196733
206832
216931
226931
237030
247129
257228
267228
277327
287327
297327
307327

Chance of precipitation in June

Any precipitation

Newcastle gets around 113 mm of rain over 11.6 wet days in June, the wettest month. 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 44% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
143
243
343
444
543
643
743
842
942
1041
1141
1240
1339
1439
1538
1637
1737
1836
1935
2035
2134
2234
2333
2433
2532
2631
2730
2829
2929
3028

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 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
167312
267312
368311
468311
568311
669301
769301
870291
972271
1073261
1175241
1277221
1379210
1481190
1583170
1685150
1786140
1888120
1989110
2090100
219280
229280
239370
249460
259460
269550
279550
289550
299550
309550

Wind in June

Winds average 20 km/h in June, the windiest month of the year.

Across June, daily wind ranges from about 19 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
620light breeze
720light breeze
820light breeze
920light breeze
1020light breeze
1120breezy
1220breezy
1320breezy
1420breezy
1520breezy
1620breezy
1720breezy
1820breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320light breeze
2420light breeze
2520light breeze
2620light breeze
2720light breeze
2820light breeze
2920light breeze
3020light breeze

Sunrise & sunset in June

DaylightNight

Daylight runs from about 10 hours at the start of June to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over June. Sunrise moves from 7:51 AM to 8:01 AM, and sunset from 5:50 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
110.07:515:50
210.07:515:50
310.07:525:50
410.07:525:49
59.97:535:49
69.97:535:49
79.97:545:49
89.97:545:49
99.97:555:49
109.97:555:48
119.97:565:48
129.97:565:48
139.97:575:48
149.97:575:48
159.87:585:48
169.87:585:48
179.87:585:48
189.87:595:49
199.87:595:49
209.87:595:49
219.87:595:49
229.88:005:49
239.88:005:49
249.88:005:50
259.88:005:50
269.88:005:50
279.88:005:50
289.88:015:51
299.88:015:51
309.88:015:51

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 2.46 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 6.64 kWh/m² in January across the year — June's 2.46 kWh/m² sits near the bottom.

0123151015202530
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
Planning a trip in June

Hazard calendar for Newcastle

In seasonPeak

None of Newcastle's seasonal hazards are active in June. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Newcastle sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Cyclone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Newcastle?

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

5.5
Sightseeing
12th-best month of the year
1.3
Beach & pool
11th-best month of the year

June is a reasonable time to visit Newcastle for sightseeing.

What to pack for Newcastle in June

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

In June, Newcastle sees daytime highs around 17°C and nights near 14°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Newcastle in June

The nearest coast averages about 20°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 23°C and coldest in August near 18°C.

It's comfortable for a long swim from Nov 13 to Jun 11 — about 6.9 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar23Refreshing
Apr22Refreshing
May21Refreshing
Jun20Cool
Jul19Cool
Aug18Cool
Sep18Cool
Oct19Cool
Nov20Refreshing
Dec21Refreshing

UV index in Newcastle in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Newcastle peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 18UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar9Very high
Apr6High
May4Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov10Very high
Dec11Extreme

Air quality in Newcastle 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 Newcastle is worst in December — around 23 µg/m³ PM2.5 (moderate), about 4.3× the cleanest month (June, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateDec 1621 µg/m³Jun 205 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb7Good
Mar7Good
Apr6Good
May6Good
Jun5Good
Jul6Good
Aug7Good
Sep8Good
Oct8Good
Nov11Good
Dec23Moderate
Location & terrain

Where is Newcastle?

Newcastle sits at 32.9°S, 151.8°E, 48 m above sea level, in Australia. The nearest listed city is Maitland, 30 km away.

Topography around Newcastle

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Newcastle.

Within 3 km, the terrain around Newcastle has only modest variations in elevation — a maximum elevation change of 76 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 158 m; within 80 km, large variations in elevation — a maximum elevation change of 863 m.

The land around Newcastle is covered by water (61%) and artificial surfaces (31%) within 3 km, water (53%) within 16 km, and trees (44%) and water (33%) within 80 km.

3 km
76 m
16 km
158 m
80 km
863 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
June weather nearby: Maitland 30 km · Cessnock 41 km · Central Coast 67 km · Umina Beach 79 km · Pittwater 93 km · Dee Why 102 km · Saint Ives 106 km · Hornsby 107 km

Australia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
230 V · 50 Hz
Prices
≈ 90% of US
price level, 2025
GDP per capita
$65,130
2025
Happiness
6.9 / 10
World Happiness, 2025
Homicide rate
0.9
per 100k, 2023
Road deaths
4.9
per 100k/yr, 2019
Income group
High
World Bank
Religion
none 38%Roman Catholic 20%Protestant 18%other Christian 4%

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 Newcastle (-32.9295°, 151.7801°, elevation 48 m), 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).