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Australia · 1991–2020

Best time to visit
Kwinana.

November leads for comfortable weather in Kwinana: typically 24.8°C by day, 15.6°C at night, with 25 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortNovember

Typical high24.8°C

Typical low15.6°C

Rain in November25 mm

Comfort

November

November · April · October

95climate match

Beach

January

January · February · March

94climate match

Outdoors

October

October · September · November

86climate match

The weakest month is July, scoring 50 against November’s 95 — days reach only 18.1°C, 6° below the 24°C the score treats as ideal, and 125 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

7728.9° / 18.9°

Feb

7429.6° / 19.4°

Mar

7928.4° / 18.4°

Apr

9424.8° / 16.2°

May

7921.9° / 13.9°

Jun

5619.3° / 12°

Jul

5018.1° / 11.1°

Aug

5618.2° / 11.1°

Sep

6719.4° / 11.8°

Oct

8721.8° / 13°

Nov

9524.8° / 15.6°

Dec

8527.3° / 17.4°

Monthly climate evidence for Kwinana — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 19 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	28.9°C	18.9°C	13 mm	1.4	21.8°C	14 h 03	77	Good coverage
February	29.6°C	19.4°C	8 mm	1.2	22.3°C	13 h 17	74	Good coverage
March	28.4°C	18.4°C	17 mm	2.5	22.3°C	12 h 23	79	Good coverage
April	24.8°C	16.2°C	34 mm	4.8	22.0°C	11 h 21	94	Good coverage
May	21.9°C	13.9°C	82 mm	9.1	21.6°C	10 h 30	79	Good coverage
June	19.3°C	12°C	131 mm	13.5	20.7°C	10 h 03	56	Good coverage
July	18.1°C	11.1°C	125 mm	15	19.8°C	10 h 13	50	Good coverage
August	18.2°C	11.1°C	101 mm	12.5	19.1°C	10 h 57	56	Good coverage
September	19.4°C	11.8°C	69 mm	10.9	18.5°C	11 h 56	67	Good coverage
October	21.8°C	13°C	35 mm	5.4	18.7°C	12 h 57	87	Good coverage
November	24.8°C	15.6°C	25 mm	4	19.6°C	13 h 49	95	Good coverage
December	27.3°C	17.4°C	9 mm	1.4	20.8°C	14 h 15	85	Good coverage

Records at KWINANA BP REFINERY, 1955–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	42.6°C14 Jan 1968	8.0°C1 Jan 2006	81 mm21 Jan 1982	148 mm1982 · driest 0 mm in 1981	53
February	43.2°C20 Feb 1977	10.5°C1 Feb 2006	81 mm22 Feb 1986	96 mm1986 · driest 0 mm in 1969	53
March	41.4°C21 Mar 1988	7.4°C9 Mar 1985	52 mm30 Mar 1997	74 mm1968 · driest 0 mm in 1976	52
April	36.5°C11 Apr 1978	5.6°C14 Apr 1958	68 mm8 Apr 1987	127 mm1961 · driest 0 mm in 1982	53
May	30.8°C7 May 1996	3.9°C27 May 1964	66 mm28 May 1980	245 mm1974 · driest 24 mm in 2012	53
June	26.1°C7 Jun 1964	3.4°C30 Jun 1990	91 mm26 Jun 1967	304 mm1970 · driest 26 mm in 2006	49
July	25.9°C17 Jul 1976	2.5°C13 Jul 1957	100 mm29 Jul 1987	320 mm1958 · driest 0 mm in 1957	53
August	27.2°C12 Aug 1976	0.8°C25 Aug 1997	70 mm4 Aug 1994	193 mm1963 · driest 20 mm in 1956	53
September	31.0°C14 Sep 1987	3.6°C15 Sep 2002	60 mm26 Sep 1987	155 mm1968 · driest 16 mm in 1974	54
October	38.0°C26 Oct 1972	4.5°C8 Oct 1979	43 mm18 Oct 1995	99 mm1965 · driest 0 mm in 1978	54
November	40.0°C26 Nov 1972	5.0°C7 Nov 1988	36 mm8 Nov 1984	79 mm1984 · driest 0 mm in 1957	52
December	41.7°C26 Dec 2007	6.7°C7 Dec 2005	26 mm7 Dec 2011	50 mm2011 · driest 0 mm in 1968	51

Typical days per month at KWINANA BP REFINERY, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	22	11	<1
February	21	11	<1
March	21	9	<1
April	12	2	<1
May	3	<1	3
June	<1	0	4
July	<1	0	4
August	<1	0	3
September	1	0	2
October	5	<1	1
November	11	4	<1
December	16	7	<1

How often, not how much — every day in KWINANA BP REFINERY’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%	27.1–31.2°C
February	94%	5%	1%	2%	27.5–32.1°C
March	92%	8%	1%	4%	25.9–29.9°C
April	80%	18%	5%	18%	22.4–25.8°C
May	53%	33%	11%	47%	20.2–22.9°C
June	20%	48%	18%	66%	18.1–19.7°C
July	9%	50%	18%	68%	16.8–18.8°C
August	13%	42%	11%	57%	17.1–19.1°C
September	29%	34%	6%	43%	18.1–20.5°C
October	57%	20%	4%	18%	19.5–23.0°C
November	83%	13%	2%	7%	22.6–26.0°C
December	94%	5%	<1%	1%	24.4–28.9°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.

1957Each stripe is one year’s mean temperature against the 39-year average. Warmest: 1999. Coolest: 1960.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2068079
NOAA station: ASN00009064 · KWINANA BP REFINERY
Station distance: 2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude -32.23°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 19 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 KWINANA BP REFINERY is what differs

Waikiki→Cooloongup→Hillman→East Rockingham→Naval Base→Kwinana Beach→

Or put two places side by side: Kwinana vs Waikiki

Best time to visitKwinana.