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Australia · 1991–2020

Best time to visit
Yanchep.

October leads for comfortable weather in Yanchep: typically 24.4°C by day, 9.3°C at night, with 34 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high24.4°C

Typical low9.3°C

Rain in October34 mm

Comfort

October

October · April · November

86climate match

Beach

March

March · February · December

79climate match

Outdoors

October

October · September · May

82climate match

The weakest month is July, scoring 44 against October’s 86 — days reach only 18.4°C, 6° below the 24°C the score treats as ideal, and nights drop to 6.4°C.

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

6833.1° / 16.3°

Feb

6633.1° / 17.1°

Mar

7730.7° / 15.4°

Apr

8426.7° / 12°

May

7422.8° / 8.9°

Jun

5419.7° / 7.3°

Jul

4418.4° / 6.4°

Aug

4919.1° / 6.6°

Sep

6320.8° / 7.4°

Oct

8624.4° / 9.3°

Nov

8128.1° / 12°

Dec

7630.9° / 14.4°

Monthly climate evidence for Yanchep — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 9 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	33.1°C	16.3°C	16 mm	1.2	21.8°C	13 h 59	68	Good coverage
February	33.1°C	17.1°C	16 mm	1.4	22.2°C	13 h 15	66	Good coverage
March	30.7°C	15.4°C	21 mm	2.6	22.3°C	12 h 22	77	Good coverage
April	26.7°C	12°C	28 mm	4.3	22.0°C	11 h 22	84	Good coverage
May	22.8°C	8.9°C	73 mm	8.8	21.6°C	10 h 32	74	Strong coverage
June	19.7°C	7.3°C	115 mm	10.6	20.7°C	10 h 06	54	Good coverage
July	18.4°C	6.4°C	126 mm	13.7	19.9°C	10 h 16	44	Good coverage
August	19.1°C	6.6°C	112 mm	12.4	19.1°C	10 h 58	49	Strong coverage
September	20.8°C	7.4°C	79 mm	10.2	18.7°C	11 h 56	63	Strong coverage
October	24.4°C	9.3°C	34 mm	5.4	18.9°C	12 h 55	86	Strong coverage
November	28.1°C	12°C	19 mm	3.4	19.8°C	13 h 47	81	Good coverage
December	30.9°C	14.4°C	10 mm	1.9	20.8°C	14 h 12	76	Good coverage

Records at GINGIN AERO, 1996–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	44.6°C20 Jan 2025	5.7°C5 Jan 2007	95 mm23 Jan 1999	96 mm1999 · driest 0 mm in 2023	29
February	46.3°C26 Feb 1997	6.6°C3 Feb 2003	74 mm10 Feb 2017	152 mm2017 · driest 0 mm in 1999	30
March	43.0°C10 Mar 2003	2.0°C28 Mar 2007	50 mm27 Mar 2016	107 mm2016 · driest 0 mm in 2012	30
April	40.1°C11 Apr 2020	1.8°C9 Apr 2007	44 mm26 Apr 2016	95 mm2016 · driest 0 mm in 2017	30
May	34.8°C7 May 1996	-2.2°C18 May 2019	40 mm27 May 1999	139 mm2001 · driest 12 mm in 2019	31
June	28.4°C12 Jun 2000	-3.6°C17 Jun 2006	70 mm19 Jun 2009	236 mm2005 · driest 8 mm in 2020	31
July	25.8°C8 Jul 2006	-3.7°C5 Jul 2010	86 mm30 Jul 2001	245 mm2021 · driest 43 mm in 2002	31
August	30.9°C31 Aug 2023	-2.3°C10 Aug 2010	51 mm10 Aug 2025	218 mm2022 · driest 25 mm in 2023	30
September	35.2°C27 Sep 2023	-1.5°C22 Sep 2008	47 mm11 Sep 1999	161 mm2013 · driest 16 mm in 2018	30
October	39.3°C20 Oct 1996	-0.1°C2 Oct 2004	38 mm25 Oct 2008	93 mm1999 · driest 1 mm in 2022	30
November	43.0°C16 Nov 2019	0.7°C12 Nov 2022	30 mm10 Nov 2020	82 mm2012 · driest 0 mm in 1999	30
December	45.3°C26 Dec 2007	2.2°C1 Dec 2020	20 mm11 Dec 2012	58 mm2012 · driest 0 mm in 2000	30

Typical days per month at GINGIN AERO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	28	21	0	<1
February	26	20	0	<1
March	27	17	0	<1
April	18	7	0	<1
May	7	<1	<1	3
June	<1	0	1	4
July	<1	0	3	5
August	<1	0	<1	4
September	3	<1	<1	3
October	12	3	0	1
November	19	10	0	<1
December	25	15	0	<1

How often, not how much — every day in GINGIN AERO’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	97%	4%	1%	1%	31.9–34.7°C
February	95%	5%	1%	2%	31.3–35.1°C
March	92%	8%	2%	6%	29.2–32.1°C
April	85%	14%	3%	13%	25.1–28.4°C
May	65%	27%	8%	34%	21.1–24.5°C
June	35%	36%	14%	50%	18.3–21.0°C
July	18%	45%	15%	61%	17.5–19.4°C
August	29%	40%	14%	52%	18.1–20.4°C
September	50%	33%	8%	42%	19.5–22.9°C
October	78%	18%	4%	14%	22.7–25.9°C
November	88%	11%	2%	9%	26.5–30.4°C
December	94%	6%	<1%	3%	29.1–33.0°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.

1997Each stripe is one year’s mean temperature against the 28-year average. Warmest: 2024. Coolest: 2001.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2057575
NOAA station: ASN00009178 · GINGIN AERO
Station distance: 23.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude -31.55°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 9 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 GINGIN AERO is what differs

Clarkson→Butler→Quinns Rocks→Mindarie→Alkimos→Merriwa→

Or put two places side by side: Yanchep vs Clarkson

Best time to visitYanchep.

October

March

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Yanchep.

The whole year,
without the guesswork.

Nearby, measured,
and named.