Monthly Climate
Menu

Best time to visit Perth

October is the best time to visit Perth for general sightseeing, with average highs of 22 °C and about 5 wet days. The comfortable season runs roughly April to May. The sea stays above 20 °C from December to June.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking October comfort 92/100
A beach holiday March sea 22 °C
The least cloud January 22 % average cloud cover
The least rain December 10 mm
Warmth February 31 °C
Cooler weather July 17 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 October 92 22 °C 5 66
2 April 92 25 °C 4 90
3 November 88 26 °C 4 84
4 May 88 21 °C 8 66
5 March 79 29 °C 2 95
6 September 79 19 °C 9 46
7 December 78 29 °C 2 90
8 June 75 18 °C 11 48
9 February 71 31 °C 1 89
10 August 71 17 °C 11 38
11 January 71 31 °C 2 88
12 July 67 17 °C 13 37

For a beach holiday

March scores highest, with a sea temperature of 22 °C and air temperatures around 29 °C. The sea is above 20 °C from December to June.

Month Sea Air Sunshine Beach score
January 22 °C 31 °C 22 % 88
February 22 °C 31 °C 25 % 89
March 22 °C 29 °C 30 % 95
April 22 °C 25 °C 41 % 90
May 22 °C 21 °C 45 % 66
June 21 °C 18 °C 48 % 48
July 20 °C 17 °C 48 % 37
August 19 °C 17 °C 47 % 38
September 19 °C 19 °C 44 % 46
October 19 °C 22 °C 38 % 66
November 20 °C 26 °C 36 % 84
December 21 °C 29 °C 25 % 90

When to think twice

July scores lowest with about 13 wet days and highs near 17 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 31.0 °C 16 mm 22 %
February 31.1 °C 15 mm 25 %
March 28.8 °C 19 mm 30 %
April 24.8 °C 25 mm 41 %
May 20.9 °C 69 mm 45 %
June 18.0 °C 99 mm 48 %
July 16.8 °C 103 mm 48 %
August 17.3 °C 90 mm 47 %
September 18.5 °C 56 mm 44 %
October 21.9 °C 29 mm 38 %
November 25.5 °C 19 mm 36 %
December 28.8 °C 10 mm 25 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.