Weather in Western Australia

Calculated from weather data of Perth International Airport (YPPH) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	31.9	33.1	32.7	33.8	32.7	30.8
February	32.0	35.2	32.2	34.5	30.1	32.2
March	29.6	30.6	29.8	29.8	29.5	29.5
April	26.0	28.3	23.3	25.3	26.8	26.3
May	22.1		22.0	21.8	21.8	21.6
June	19.2		17.0	19.5	18.3	20.8
July	18.3		18.1	18.5	17.8	19.0
August	18.7		19.8	18.0	19.0	18.6
September	21.0		21.8	20.6	21.1	21.1
October	23.3		26.5	21.6	21.1	24.8
November	27.0		30.5	25.1	26.1	24.1
December	30.9		31.6	28.6	31.6	31.6
Average	25.7	31.8	25.4	24.6	24.6	25.0

63rd highest temperature of Australia

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	18.0	19	18	19	19	17
February	18.3	19	18	19	17	20
March	17.1	17	17	18	17	17
April	13.2	15	12	14	13	14
May	10.1		11	10	12	10
June	8.9		7	10	7	11
July	9.0		9	10	10	9
August	8.3		8	8	9	8
September	9.6		11	10	9	10
October	11.3		13	9	10	12
November	14.1		17	13	14	12
December	17.1		18	17	17	17
Average	13.4	17.1	13.1	12.7	12.8	13.1

19th lowest temperature of Australia

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	64	97	68	83	85
25 °C or warmer	113	175	138	144	147
20 °C or warmer	120	257	234	238	265
0 °C or colder	0	1	0	0	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	1.1	0	0	0	0	1
February	1.8	4	0	1	4	5
March	3.3	2	2	3	4	5
April	4.7	1	11	2	2	3
May	7.8		5	7	7	21
June	15.7		18	12	9	22
July	22.1		12	20	24	13
August	17.6		10	25	10	17
September	12.9		14	9	7	13
October	6.5		2	3	8	2
November	3.1		1	6	0	8
December	1.9		0	3	1	1
Average	7.2	1.4	6.0	7.2	6.0	8.7

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	23.5	24	24	23	25	24
February	22.2	21	23	22	23	23
March	20.9	23	21	22	19	20
April	18.5	22	19	18	18	18
May	17.5		18	18	17	18
June	16.5		16	18	15	17
July	18.0		20	18	20	17
August	18.2		15	20	19	17
September	19.3		21	20	20	20
October	21.2		22	22	21	21
November	21.9		23	22	22	21
December	22.7		24	23	23	22
Average	20.4	22.6	20.5	20.5	20.2	20.0

25th highest wind speed of Australia

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	S	S	S	SE	SW
February	S	S	S	S	E
March	E	SE	SE	SE	S
April	E	SW	SE	SE	SW
May		E	E	E	N
June		W	NE	NE	N
July		NW	N	NW	N
August		NE	NW	NW	W
September		W	SW	W	W
October		SW	SW	W	SW
November		SE	SW	SW	SW
December		S	SE	SW	S

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Western Australia weather Q&A

What is the warmest month in Western Australia?

The warmest month is February with an average temperature of 32 °C over the past years.

What is the coldest month in Western Australia?

The coldest month is July with an average daytime temperature of 18 °C in the past few years.

Which month is the wettest in Western Australia?

Chance of precipitation is the highest in July with a probability of around 22.2 %.

Which month is the driest in Western Australia?

The least rainfall and snow can be expected in January. The probability is about 1.2 %.