Busselton climate — normals and trends
Busselton (Australia) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 16.5 °C and it receives 679 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is February (21.0 °C on average) and the coldest is August (12.9 °C). Rainfall peaks in July.
Busselton averages 0 frost days, 10 hot days (≥ 30 °C) and 90 rainy days per year.
Busselton has warmed by +0.5 °C between 1940 and 2025, or +0.06 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.2 °C (on 26 December 2021) and the coldest 4.7 °C (on 29 August 2004).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BusseltonWestern Australia
- coords
- -33.65°, 115.35°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.5°C
Average daily high
20.1°C
Average daily low
13.2°C
Annual rainfall
679mm
Sunshine / day
10.6h
Mean relative humidity
70%
Average peak wind
24.1km/h
Seasonal range
8.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
90 d/yr
Annual snowfall
0.0 cm
Average feels-like high
19.0 °C
Average feels-like low
10.6 °C
Average peak gust
42.8 km/h
Tropical nights (≥ 20 °C)
7 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.5 °C
since 1940
+0.1 °C per decade · r² = 0.13 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.2 °C
26 December 2021
Coldest day
4.7 °C
29 August 2004
Wettest day
89 mm
18 July 1965
Windiest day
64.4 km/h
4 April 1978
Strongest gust
123.5 km/h
24 May 2020
Hottest feels-like
40.8 °C
26 February 1997
Coldest feels-like
-1.0 °C
24 September 1971
Sunniest day
14.0 h
31 December 2017
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 26.8 °C | +1.2 °C | 11 mm | +2 mm |
| Feb | 25.9 °C | -0.2 °C | 3 mm | -8 mm |
| Mar | 25.9 °C | +1.5 °C | 35 mm | +18 mm |
| Apr | 21.4 °C | +0.2 °C | 29 mm | -8 mm |
| May | 19.6 °C | +1.2 °C | 43 mm | -45 mm |
| Jun | 17.4 °C | +1.1 °C | 178 mm | +43 mm |
| Jul | 15.3 °C | 0.0 °C | 160 mm | +17 mm |
| Aug | 15.8 °C | +0.4 °C | 126 mm | +22 mm |
| Sep | 16.9 °C | +0.6 °C | 76 mm | +11 mm |
| Oct | 17.8 °C | -0.2 °C | 59 mm | +22 mm |
| Nov | 21.0 °C | +0.3 °C | 31 mm | +7 mm |
| Dec | 24.6 °C | +1.1 °C | 1 mm | -9 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Busselton?
Busselton has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 16.5 °C and it receives 679 mm of precipitation per year.
What is the hottest day ever recorded in Busselton?
The hottest day measured in Busselton between 1940 and 2025 was 26 December 2021, reaching 37.2 °C.
What is the coldest day in Busselton?
The coldest day measured in Busselton between 1940 and 2025 was 29 August 2004, at 4.7 °C.
Does it snow in Busselton?
Almost never: Busselton sees virtually no snow, with about 0 frost days per year.
Has the climate of Busselton warmed?
Yes: Busselton warmed by +0.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Busselton?
The wettest day measured in Busselton between 1940 and 2025 was 18 July 1965, with 89 mm of rain in 24 hours.
What was the windiest day in Busselton?
The windiest day measured in Busselton between 1940 and 2025 was 4 April 1978, with winds reaching 64.4 km/h.
What is the warmest month in Busselton?
The warmest month in Busselton is February (21.0 °C on average); the coldest is August (12.9 °C).
How much does it rain in Busselton?
Busselton receives on average 679 mm of precipitation per year, spread over about 90 rainy days.
Is it sunny in Busselton?
Busselton gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Busselton?
Yes: Busselton has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Busselton?
In Busselton, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 26 February 1997, and the lowest was -1.0 °C on 24 September 1971.
Compare Busselton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Busselton