What is the best time to visit Sunbury?

Based on our Comfort Score analysis, January is the best month to visit Sunbury, Victoria, scoring 10.0 out of 10 for pleasant weather conditions.

What is the Comfort Score for Sunbury?

Sunbury has an annual Comfort Score of 6.0/10, based on temperature, humidity, rainfall, UV exposure, and sunshine hours throughout the year.

Does it frost in Sunbury?

Yes, Sunbury averages about 7 frost days per year. The coldest overnight temperatures typically occur in June.

Sunbury Weather and Climate

Victoria, Australia (37.58°S, 144.73°E, 216m elevation) Warm-summer Mediterranean (Csb)

6.0/10

Good comfort year-round

Best month: January (10.0/10). Ranked #140 of 213 Australian cities. The RefDat Comfort Score weighs temperature, humidity, rainfall, and sunshine into a single 1-to-10 rating for how pleasant a climate actually feels.

How the score works →

Climate Dashboard

Comfort, seasonality and national benchmarks in one view.

Monthly Comfort Score

January is the sweet spot

January: 10.0/10. June: 1.0/10. Annual score 6.0/10, ranked #140 of 213 Australian cities.

Against national averages

Annual benchmarks

Temperature range

9.4 - 18.8°C

Days 5.0 degrees cooler; nights 4.9 degrees cooler

Annual rainfall

692mm

21% below national avg; national avg 876mm

Rain days

105 days/yr

0 more rain days than national avg

Solar exposure

16.1 MJ/m²

2.2 MJ/m² below national avg

Humidity

53%

5 points above national avg

Seasonal pattern

Four-season readout

Summer9.8/10

13.0 - 25.2°C

183mm rain

Autumn5.7/10

9.5 - 18.7°C

122mm rain

Winter1.8/10

6.0 - 12.5°C

180mm rain

Spring6.6/10

9.0 - 19.0°C

206mm rain

Temperature

December has the warmest afternoons at 26.2 degrees. June has the coolest nights at 5.1 degrees.

Rainfall

692mm falls across 105 rain days. January is wettest (142mm), February driest (6mm), so monthly rainfall varies by about 26 times.

Comfort window

January scores 10.0/10 and is the best month for pleasant weather. June is the hardest month at 1.0/10.

Planning cue

Use the comfort chart first if you are timing a visit. Use the benchmark bars when you want to compare Sunbury with the national climate baseline.

Monthly Climate Averages

Month	Max °C	Min °C	Rain mm	Rain Days	Solar MJ	Humidity %	Comfort

Weather by Month

Detailed climate data, packing advice, and what to expect for each month in Sunbury.

January10.0/10Excellent24.0°C max, 142mm rain February10.0/10Excellent25.3°C max, 6mm rain March10.0/10Excellent24.0°C max, 10mm rain April4.2/10Challenging16.9°C max, 72mm rain May2.8/10Challenging15.2°C max, 40mm rain June1.0/10Challenging11.4°C max, 49mm rain July1.0/10Challenging10.8°C max, 93mm rain August3.4/10Challenging15.4°C max, 38mm rain September3.5/10Challenging15.3°C max, 68mm rain October6.6/10Good18.6°C max, 60mm rain November9.8/10Excellent23.1°C max, 78mm rain December9.3/10Excellent26.2°C max, 36mm rain

Compare and Explore

Sunbury vs Sydney Sunbury vs Melbourne Sunbury vs Brisbane Sunbury vs Perth Best Time to Visit Climate Trends Australian winter weather

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