Sunbury weather in January

In January, Sunbury sees average daytime highs of 25°C and overnight lows near 12°C, with 53 mm of rain across 6.5 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 43% of the time in January, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of January to 13 h 54 min by month's end. Set against the rest of the year, January is Sunbury's 2nd-clearest and 6th-windiest month. For the whole year in context, see Sunbury's year-round climate.

Daytime high
25°
1st warmest
Overnight low
12°
11th coldest
Rainfall
53 mm
6.5 wet days
Daylight
14 h 18 min
6:21 AM – 8:40 PM
Cloud cover
49%
2nd clearest
Wind
13 km/h
6th windiest
Solar energy
7.23 kWh/m²
Travel score
7.6
out of 10

Sunbury is town in Victoria, Australia.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical January day in Sunbury reaches about 25°C in the afternoon and slips back to 12°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 33°C. Set against its neighbours, January runs about 2°C warmer than December and on par with February.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12411
22411
32411
42411
52512
62512
72512
82512
92512
102512
112512
122512
132512
142512
152512
162512
172512
182512
192512
202512
212512
222512
232512
242512
252512
262512
272512
282512
292512
302512
312512

Sunbury weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 12°536.514.37.6
Feb25° / 12°476.113.47.6
Mar22° / 11°335.312.37.5
Apr18° / 416.411.16.4
May15° / 387.6104.5
Jun12° / 4699.53.1
Jul11° / 389.19.72.8
Aug12° / 4910.110.63.3
Sep15° / 5610.511.74.4
Oct18° / 629.5135.8
Nov21° / 648.9146.5
Dec23° / 10°617.714.57.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45446
55446
65446
75644
85644
95644
105743
115743
125941
135941
145941
156040
166040
176139
186139
196238
206139
216139
226040
236139
246139
256139
266040
276040
286040
296040
306040
315941

Chance of precipitation in January

Any precipitation

Sunbury gets around 53 mm of rain over 6.5 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
121
221
321
421
521
621
721
820
920
1020
1119
1219
1318
1418
1518
1618
1718
1818
1918
2019
2119
2220
2321
2421
2522
2622
2722
2823
2923
3023
3123

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1811441
2811441
3801541
4791641
5801631
6791731
7791731
8791731
9781741
10781741
11771841
12761842
13761842
14761842
15751852
16751852
17741952
18731962
19731962
20731962
21712072
22712072
23712072
24702082
25692182
26692182
27692182
28692182
29682192
30682192
31682192

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 36 min at the start of January to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over January. Sunrise moves from 6:08 AM to 6:36 AM, and sunset from 8:41 PM to 8:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.66:088:41
214.56:088:41
314.56:098:41
414.56:108:41
514.56:118:41
614.56:118:41
714.56:128:41
814.56:138:41
914.56:148:41
1014.46:158:41
1114.46:168:41
1214.46:178:41
1314.46:188:41
1414.46:198:41
1514.36:208:40
1614.36:218:40
1714.36:228:40
1814.36:238:40
1914.36:248:39
2014.26:258:39
2114.26:268:38
2214.26:278:38
2314.26:288:38
2414.16:298:37
2514.16:308:37
2614.16:318:36
2714.16:328:35
2814.06:338:35
2914.06:348:34
3014.06:358:33
3113.96:368:33

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7.23 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.8 kWh/m² to a high of 7.23 kWh/m² in January across the year — January's 7.23 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.5Intense
27.5Intense
37.5Intense
47.5Intense
57.4Intense
67.4Intense
77.4Intense
87.3Intense
97.3Intense
107.3Intense
117.3Intense
127.2Intense
137.2Intense
147.2Intense
157.2Intense
167.2Intense
177.1Intense
187.1Intense
197.1Intense
207.0Intense
217.0Intense
227.0Intense
237.0Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.8Intense
296.8Intense
306.8Intense
316.7Intense
Planning a trip in January

Hazard calendar for Sunbury

In seasonPeak

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

Sunbury 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 January a good time to visit Sunbury?

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

7.6
Sightseeing
1st-best month of the year
6.8
Beach & pool
1st-best month of the year

January is one of the better times to visit Sunbury for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sunbury in January

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

In January, Sunbury sees daytime highs around 25°C and nights near 12°C. Pack sun protection. Worth having: light clothes. About 7 days see rain.

sun protectionlight clothes

Sea temperature near Sunbury in January

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

The sea at the nearest coast (about 36 km away) is warmest in February at about 21°C and coldest in August near 11°C.

It's comfortable for a long swim from Jan 15 to Mar 11 — about 1.8 months when the water holds above 20°C.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan20Refreshing
Feb21Refreshing
Mar20Cool
Apr18Cool
May15Cool
Jun13Bracing
Jul12Bracing
Aug11Bracing
Sep12Bracing
Oct14Bracing
Nov17Cool
Dec19Cool

UV index in Sunbury in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sunbury peaks around December 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateModerateVery highExtremeDec 19UV 12Jun 17UV 2
UV index (midday)Level
Jan11Extreme
Feb10Extreme
Mar8Very high
Apr5Moderate
May3Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct8Very high
Nov10Very high
Dec13Extreme
Location & terrain

Where is Sunbury?

Sunbury sits at 37.6°S, 144.7°E, 220 m above sea level, in Australia. The nearest listed city is Hillside, 13 km away.

Topography around Sunbury

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

Within 3 km, the terrain around Sunbury has only modest variations in elevation — a maximum elevation change of 236 m around an average of 234 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 609 m; within 80 km, large variations in elevation — a maximum elevation change of 1,151 m.

The land around Sunbury is covered by artificial surfaces (37%), grassland (34%) and trees (26%) within 3 km, grassland (70%) within 16 km, and grassland (46%) and trees (32%) within 80 km.

3 km
236 m
16 km
609 m
80 km
1,151 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Hillside 13 km · Greenvale 14 km · Taylors Lakes 14 km · Taylors Hill 15 km · Caroline Springs 18 km · Roxburgh Park 18 km · Saint Albans 19 km · St Albans 20 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 Sunbury (-37.5774°, 144.7261°, elevation 220 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).