Sunbury in Spring
In spring (September, October and November), Sunbury sees average daytime highs around 18°C and overnight lows near 7°C, with 181 mm of rain over about 29 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs climb from about 14°C in early September to 22°C by late November. The sky is clear or mostly clear about 22% of the time across spring, and the air most often feels dry.
Spring is Sunbury's 3rd-best season to visit on our travel score. For the whole year in context, see Sunbury's year-round climate.
- Avg daytime high
- 18°C
- 3rd-warmest season
- Avg overnight low
- 7°C
- Rainfall
- 181 mm
- 29 wet days
- Avg wind
- 13 km/h
- Travel score
- 5.6
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Sunbury in Spring
Over the season highs climb from about 14°C in early September to 22°C by late November.
A typical spring day in Sunbury reaches about 18°C and drops to 7°C overnight. The warmest of the three months is November, the coolest September.
Sunbury weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 25° / 12° | 53 | 6.5 | 14.3 | 7.6 |
| Feb | 25° / 12° | 47 | 6.1 | 13.4 | 7.6 |
| Mar | 22° / 11° | 33 | 5.3 | 12.3 | 7.5 |
| Apr | 18° / 8° | 41 | 6.4 | 11.1 | 6.4 |
| May | 15° / 7° | 38 | 7.6 | 10 | 4.5 |
| Jun | 12° / 5° | 46 | 9 | 9.5 | 3.1 |
| Jul | 11° / 5° | 38 | 9.1 | 9.7 | 2.8 |
| Aug | 12° / 5° | 49 | 10.1 | 10.6 | 3.3 |
| Sep | 15° / 6° | 56 | 10.5 | 11.7 | 4.4 |
| Oct | 18° / 7° | 62 | 9.5 | 13 | 5.8 |
| Nov | 21° / 9° | 64 | 8.9 | 14 | 6.5 |
| Dec | 23° / 10° | 61 | 7.7 | 14.5 | 7.2 |
Cloud cover in Spring
The sky is clear or mostly clear about 22% of the time across spring.
Chance of precipitation in Spring
Sunbury gets around 181 mm of rain over 29 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 13 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 12 min in early September to 14 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.2 kWh/m².
Hazard calendar for Sunbury
In spring, Sunbury overlaps 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.
Is spring a good time to visit Sunbury?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Sunbury for sightseeing.
What to pack for Sunbury in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Sunbury sees daytime highs around 18°C and nights near 7°C. Pack sun protection. Worth having: a warm layer and rain gear. About 29 days see rain.
Sea temperature near Sunbury in Spring
The nearest coast averages about 14°C across spring — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 21 | 20 | 18 | 15 | 13 | 12 | 11 | 12 | 14 | 17 | 19 |
| Comfort | Refreshing | Refreshing | Cool | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Refreshing |
| Feb | 21 | Refreshing |
| Mar | 20 | Cool |
| Apr | 18 | Cool |
| May | 15 | Cool |
| Jun | 13 | Bracing |
| Jul | 12 | Bracing |
| Aug | 11 | Bracing |
| Sep | 12 | Bracing |
| Oct | 14 | Bracing |
| Nov | 17 | Cool |
| Dec | 19 | Cool |
UV index in Sunbury in Spring
Clear-sky midday UV across spring averages around 7 — enough to warrant sun protection. 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 10 | 8 | 5 | 3 | 2 | 2 | 3 | 5 | 8 | 10 | 13 |
| Level | Extreme | Extreme | Very high | Moderate | Moderate | Low | Moderate | Moderate | Moderate | Very high | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 10 | Extreme |
| Mar | 8 | Very high |
| Apr | 5 | Moderate |
| May | 3 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 5 | Moderate |
| Oct | 8 | Very high |
| Nov | 10 | Very high |
| Dec | 13 | Extreme |
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.
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
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.