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Mandurah, Western Australia climate

Csa Hot-summer Mediterranean

Mandurah has a mildly seasonal warm-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is February with an average daily high near 31°C, while the coldest is July averaging around 8°C at night. Precipitation totals about 714 mm a year and is strongly seasonal — July alone averages 136 mm while December barely receives 12 mm.

☀️ Summers

Hot

Highs near 31°C in February.

About 48 days a year above 32 °C

❄️ Winters

Cool

Lows near 8°C in July.

🌧️ Rain

Moderate rainfall

About 714 mm of rain a year.

Wettest in July

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.3 °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

Mandurah climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	31	29	26	22	20	18	19	20	23	26	29
Avg temp (°C)	24	24	23	20	16	14	13	14	15	17	20	22
Avg low (°C)	17	18	16	14	11	9	8	8	9	11	14	15
Precipitation (mm)	12	22	19	34	92	131	136	114	80	37	27	12

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	31	31	29	26	22	20
Avg temp (°C)	24	24	23	20	16	14
Avg low (°C)	17	18	16	14	11	9
Precipitation (mm)	12	22	19	34	92	131

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	18	19	20	23	26	29
Avg temp (°C)	13	14	15	17	20	22
Avg low (°C)	8	8	9	11	14	15
Precipitation (mm)	136	114	80	37	27	12

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	2	2	4	7	12	15	18	16	14	8	6	3
Days with high ≥ 32°C (days)	13	12	9	2	0.1	—	—	—	0.1	1.0	4	7
Days with low ≤ 0°C (days)	—	—	—	—	0.0	0.1	0.3	—	—	—	—	—

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	2	2	4	7	12	15
Days with high ≥ 32°C (days)	13	12	9	2	0.1	—
Days with low ≤ 0°C (days)	—	—	—	—	0.0	0.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	18	16	14	8	6	3
Days with high ≥ 32°C (days)	—	—	0.1	1.0	4	7
Days with low ≤ 0°C (days)	0.3	—	—	—	—	—

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	38	39	44	54	59	66	66	64	63	55	49	41
Clear days (≤ 30% cloud)	15	14	13	8	5	3	3	4	4	7	10	13
Partly cloudy days (30–70%)	12	10	11	11	12	12	10	11	11	12	12	13
Cloudy days (≥ 70%)	4	4	7	11	13	15	17	16	15	11	8	6
Relative humidity (%)	64	64	66	68	69	72	73	74	74	73	70	65
Wind speed (km/h)	20.2	19.4	18.7	17.1	17.6	19.1	19.2	18.4	18.4	18.3	19.4	20.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	38	39	44	54	59	66
Clear days (≤ 30% cloud)	15	14	13	8	5	3
Partly cloudy days (30–70%)	12	10	11	11	12	12
Cloudy days (≥ 70%)	4	4	7	11	13	15
Relative humidity (%)	64	64	66	68	69	72
Wind speed (km/h)	20.2	19.4	18.7	17.1	17.6	19.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	66	64	63	55	49	41
Clear days (≤ 30% cloud)	3	4	4	7	10	13
Partly cloudy days (30–70%)	10	11	11	12	12	13
Cloudy days (≥ 70%)	17	16	15	11	8	6
Relative humidity (%)	73	74	74	73	70	65
Wind speed (km/h)	19.2	18.4	18.4	18.3	19.4	20.2

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Medina Research Centre, a weather station, about 35 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 →