Rockdale weather in April

In April, Rockdale sees average daytime highs of 21°C and overnight lows near 17°C, with 78 mm of rain across 10.5 wet days and about 11.2 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 20°C by the end. The sky is clear or mostly clear about 48% of the time in April, and the air most often feels comfortable.

Daylight stretches from about 11 h 42 min at the start of April to 10 h 42 min by month's end. Set against the rest of the year, April is Rockdale's 5th-clearest and 12th-windiest month. For the whole year in context, see Rockdale's year-round climate.

Daytime high
21°
5th warmest
Overnight low
17°
8th coldest
Rainfall
78 mm
10.5 wet days
Daylight
11 h 12 min
7:21 AM – 6:30 PM
Cloud cover
45%
5th clearest
Wind
17 km/h
12th windiest
Solar energy
3.9 kWh/m²
Travel score
6.6
out of 10

Rockdale is suburb of Sydney, New South Wales, Australia.

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 20°C by the end.

A typical April day in Rockdale reaches about 21°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 23°C. Set against its neighbours, April runs about 2°C cooler than March and about 2°C warmer than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12219
22219
32218
42218
52218
62118
72118
82118
92118
102118
112118
122118
132118
142118
152118
162117
172117
182117
192117
202117
212117
222017
232017
242017
252017
262017
272017
282017
292016
302016

Rockdale weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 20°759147.2
Feb24° / 21°9310.513.36.8
Mar23° / 20°8312.112.36.7
Apr21° / 17°7810.511.26.6
May19° / 15°849.910.36.3
Jun17° / 13°10010.59.85.5
Jul16° / 12°598.2105.5
Aug17° / 12°556.910.76.0
Sep18° / 14°506.811.86.6
Oct19° / 15°618.312.96.6
Nov21° / 17°729.413.86.6
Dec22° / 19°588.814.27.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 21% of April, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16733
26733
36832
46832
56832
66832
76931
86832
96832
106832
116832
126832
136931
146931
156931
166931
176931
186931
196931
206931
216832
226733
236733
246733
256733
266634
276634
286634
296634
306634

Chance of precipitation in April

Any precipitation

Rockdale gets around 78 mm of rain over 10.5 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
238
337
437
536
636
735
835
934
1034
1134
1234
1334
1434
1534
1634
1734
1834
1935
2035
2135
2235
2335
2435
2535
2635
2735
2835
2935
3034

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the comfortable band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
118333415
219333414
320343413
420343411
521353410
62235349
72236338
82336337
92337337
102437336
112437345
122537345
132537344
142537344
152637344
162637343
172637333
182737333
192837333
202837322
212938312
223038302
233138292
243238282
253338272
263438261
273538251
283738241
293838231
304038211

Wind in April

Winds average 17 km/h in April, the calmest month.

Across April, daily wind ranges from about 17 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 42 min at the start of April to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over April. Sunrise moves from 7:10 AM to 7:32 AM, and sunset from 6:51 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:106:51
211.67:106:49
311.67:116:48
411.67:126:46
511.57:136:45
611.57:136:44
711.57:146:42
811.47:156:41
911.47:166:40
1011.47:166:38
1111.37:176:37
1211.37:186:36
1311.37:196:34
1411.27:206:33
1511.27:206:32
1611.27:216:30
1711.17:226:29
1811.17:236:28
1911.17:236:27
2011.07:246:25
2111.07:256:24
2211.07:266:23
2310.97:266:22
2410.97:276:20
2510.97:286:19
2610.87:296:18
2710.87:306:17
2810.87:306:16
2910.77:316:15
3010.77:326:14

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.9 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 6.78 kWh/m² in January across the year — April's 3.9 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.1Bright
114.1Bright
124.0Bright
134.0Bright
144.0Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.7Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.4Moderate
Planning a trip in April

Hazard calendar for Rockdale

In seasonPeak

In April, Rockdale sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Rockdale 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 April a good time to visit Rockdale?

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

6.6
Sightseeing
5th-best month of the year
3.9
Beach & pool
5th-best month of the year

April is a reasonable time to visit Rockdale for sightseeing.

What to pack for Rockdale in April

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

In April, Rockdale sees daytime highs around 21°C and nights near 17°C. Worth packing: rain gear. About 11 days see rain.

rain gear

Sea temperature near Rockdale in April

The nearest coast averages about 22°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in February at about 23°C and coldest in August near 18°C.

It's comfortable for a long swim from Nov 16 to Jun 2 — about 6.5 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
Jun19Cool
Jul18Cool
Aug18Cool
Sep18Cool
Oct19Cool
Nov20Refreshing
Dec21Refreshing

UV index in Rockdale in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Rockdale peaks around January 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 12Jun 18UV 2
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar9Very high
Apr6High
May4Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep5High
Oct8Very high
Nov10Very high
Dec12Extreme
Location & terrain

Where is Rockdale?

Rockdale sits at 34.0°S, 151.1°E, 42 m above sea level, in Australia. The nearest listed city is Bexley, 2.0 km away.

Topography around Rockdale

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

Within 3 km, the terrain around Rockdale has only modest variations in elevation — a maximum elevation change of 81 m around an average of 25 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 195 m; within 80 km, large variations in elevation — a maximum elevation change of 1,047 m.

The land around Rockdale is covered by artificial surfaces (66%) within 3 km, artificial surfaces (41%), water (27%) and trees (25%) within 16 km, and trees (51%) and water (34%) within 80 km.

3 km
81 m
16 km
195 m
80 km
1,047 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
April weather nearby: Bexley 2.0 km · Kogarah 2.0 km · Earlwood 3.0 km · Hurstville 4.0 km · Campsie 5.0 km · Marrickville 5.0 km · Mascot 6.0 km · Lakemba 6.0 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 Rockdale (-33.95°, 151.1333°, elevation 42 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).