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Busselton, Western Australia climate

Csa Hot-summer Mediterranean

Busselton has a mildly seasonal mild-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is February with an average daily high near 29°C, while the coldest is July averaging around 8°C at night. Precipitation totals about 702 mm a year and is strongly seasonal — July alone averages 140 mm while February barely receives 4 mm.

☀️ Summers

Warm

Highs near 29°C in February.

About 22 days a year above 32 °C

❄️ Winters

Cool

Lows near 8°C in July.

🌧️ Rain

Moderate rainfall

About 702 mm of rain a year.

Wettest in July

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

−0.2 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Busselton climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	29	29	27	23	21	18	17	17	18	21	24	27
Avg temp (°C)	22	22	21	18	15	14	13	13	14	15	18	20
Avg low (°C)	15	16	14	12	10	9	8	8	9	10	12	13
Precipitation (mm)	15	4	11	40	94	134	140	113	81	34	25	10

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	29	29	27	23	21	18
Avg temp (°C)	22	22	21	18	15	14
Avg low (°C)	15	16	14	12	10	9
Precipitation (mm)	15	4	11	40	94	134

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	17	17	18	21	24	27
Avg temp (°C)	13	13	14	15	18	20
Avg low (°C)	8	8	9	10	12	13
Precipitation (mm)	140	113	81	34	25	10

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	3	2	4	9	13	16	20	19	16	9	6	4
Days with high ≥ 32°C (days)	8	6	3	0.1	—	—	—	—	—	0.1	0.9	4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	3	2	4	9	13	16
Days with high ≥ 32°C (days)	8	6	3	0.1	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	20	19	16	9	6	4
Days with high ≥ 32°C (days)	—	—	—	0.1	0.9	4

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	49	48	54	63	68	72	72	71	71	65	60	53
Clear days (≤ 30% cloud)	7	7	6	4	2	1	2	2	2	3	4	6
Partly cloudy days (30–70%)	18	15	16	12	12	10	10	10	9	12	14	17
Cloudy days (≥ 70%)	6	6	9	14	17	19	20	19	19	15	12	8
Relative humidity (%)	54	54	59	66	73	79	82	82	80	76	68	58
Wind speed (m/s)	4.4	4.3	3.9	3.3	3.3	3.5	3.5	3.5	3.5	3.5	3.8	4.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	49	48	54	63	68	72
Clear days (≤ 30% cloud)	7	7	6	4	2	1
Partly cloudy days (30–70%)	18	15	16	12	12	10
Cloudy days (≥ 70%)	6	6	9	14	17	19
Relative humidity (%)	54	54	59	66	73	79
Wind speed (m/s)	4.4	4.3	3.9	3.3	3.3	3.5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	72	71	71	65	60	53
Clear days (≤ 30% cloud)	2	2	2	3	4	6
Partly cloudy days (30–70%)	10	10	9	12	14	17
Cloudy days (≥ 70%)	20	19	19	15	12	8
Relative humidity (%)	82	82	80	76	68	58
Wind speed (m/s)	3.5	3.5	3.5	3.5	3.8	4.1

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 13 years of daily observations at Busselton, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →