Home·Australia·Western Australia

Australia · 1991–2020

Best time to visit
Perth.

April leads for comfortable weather in Perth: typically 25.9°C by day, 13.8°C at night, with 35 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high25.9°C

Typical low13.8°C

Rain in April35 mm

Comfort

April

April · October · November

90climate match

Beach

March

March · December · January

86climate match

Outdoors

October

October · September · May

83climate match

The weakest month is July, scoring 44 against April’s 90 — days reach only 18.5°C, 5° below the 24°C the score treats as ideal, and 142 mm of rain falls.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

7131.2° / 18.1°

Feb

6931.6° / 18.3°

Mar

7829.6° / 16.7°

Apr

9025.9° / 13.8°

May

7422.4° / 10.4°

Jun

5319.5° / 8.7°

Jul

4418.5° / 7.9°

Aug

5019.1° / 8.3°

Sep

6520.5° / 9.6°

Oct

9023.5° / 11.6°

Nov

8926.7° / 14.3°

Dec

8029.4° / 16.4°

Monthly climate evidence for Perth — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 24 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	31.2°C	18.1°C	19 mm	1.7	21.8°C	14 h 01	71	Strong coverage
February	31.6°C	18.3°C	13 mm	1.2	22.3°C	13 h 16	69	Strong coverage
March	29.6°C	16.7°C	20 mm	2.5	22.3°C	12 h 22	78	Strong coverage
April	25.9°C	13.8°C	35 mm	4.5	22.1°C	11 h 21	90	Strong coverage
May	22.4°C	10.4°C	88 mm	8.7	21.6°C	10 h 31	74	Strong coverage
June	19.5°C	8.7°C	127 mm	11.8	20.8°C	10 h 04	53	Strong coverage
July	18.5°C	7.9°C	142 mm	14.4	19.9°C	10 h 15	44	Strong coverage
August	19.1°C	8.3°C	124 mm	13	19.1°C	10 h 57	50	Strong coverage
September	20.5°C	9.6°C	83 mm	10.9	18.7°C	11 h 56	65	Strong coverage
October	23.5°C	11.6°C	37 mm	5.6	18.8°C	12 h 56	90	Strong coverage
November	26.7°C	14.3°C	24 mm	3.9	19.8°C	13 h 48	89	Strong coverage
December	29.4°C	16.4°C	10 mm	2	20.8°C	14 h 14	80	Strong coverage

Records at PERTH METRO, 1993–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	44.4°C5 Jan 2015	8.9°C25 Jan 2001	104 mm22 Jan 2000	139 mm2000 · driest 0 mm in 2022	33
February	44.5°C26 Feb 1997	9.9°C1 Feb 2016	114 mm10 Feb 2017	137 mm2017 · driest 0 mm in 2025	33
March	42.4°C7 Mar 2007	6.3°C27 Mar 2007	63 mm28 Mar 2026	73 mm2026 · driest 0 mm in 2011	33
April	39.5°C11 Apr 2020	4.7°C29 Apr 2000	70 mm17 Apr 2002	154 mm2008 · driest 0 mm in 2017	33
May	34.3°C1 May 2002	1.3°C25 May 2012	50 mm2 May 2005	191 mm2005 · driest 18 mm in 2019	33
June	26.2°C1 Jun 2009	-0.7°C17 Jun 2006	71 mm5 Jun 2023	251 mm2005 · driest 25 mm in 2006	33
July	25.8°C21 Jul 1994	0.0°C15 Jul 1997	89 mm30 Jul 2001	279 mm1995 · driest 35 mm in 2012	33
August	30.0°C28 Aug 2019	1.3°C21 Aug 2000	64 mm4 Aug 1994	204 mm2025 · driest 28 mm in 2008	32
September	34.3°C27 Sep 2023	1.0°C22 Sep 2008	36 mm22 Sep 2014	144 mm2013 · driest 31 mm in 2019	32
October	37.2°C30 Oct 2013	2.2°C6 Oct 1994	68 mm18 Oct 1995	123 mm2021 · driest 5 mm in 2000	32
November	40.4°C16 Nov 2019	5.0°C18 Nov 2004	40 mm9 Nov 2021	92 mm2020 · driest 3 mm in 2018	33
December	44.2°C26 Dec 2007	6.6°C1 Dec 2020	44 mm13 Dec 2011	76 mm2011 · driest 0 mm in 2009	33

Typical days per month at PERTH METRO, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	28	18	<1
February	26	18	<1
March	26	14	<1
April	16	5	1
May	6	<1	3
June	<1	0	4
July	<1	0	5
August	<1	0	4
September	3	<1	3
October	9	3	1
November	17	7	<1
December	24	12	<1

How often, not how much — every day in PERTH METRO’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	95%	5%	1%	2%	29.9–33.0°C
February	96%	4%	1%	2%	30.1–34.1°C
March	92%	8%	2%	4%	28.0–30.8°C
April	84%	16%	3%	16%	24.3–27.5°C
May	63%	28%	10%	39%	21.1–24.1°C
June	32%	39%	15%	56%	18.5–20.5°C
July	18%	47%	17%	64%	17.8–19.4°C
August	27%	42%	15%	58%	18.2–20.2°C
September	46%	36%	9%	47%	19.3–22.3°C
October	74%	19%	4%	16%	22.0–25.0°C
November	86%	13%	3%	8%	25.0–29.1°C
December	94%	6%	<1%	3%	27.7–31.4°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1994Each stripe is one year’s mean temperature against the 32-year average. Warmest: 2024. Coolest: 2005.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2063523
NOAA station: ASN00009225 · PERTH METRO
Station distance: 3.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude -31.95°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 24 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from PERTH METRO is what differs

Dianella→Morley→Ballajura→Duncraig→Landsdale→Como→

Or put two places side by side: Perth vs Dianella

Best time to visitPerth.