Australia · 1991–2020

Best time to visit
Bacchus Marsh.

March leads for comfortable weather in Bacchus Marsh: typically 23.9°C by day, 12.8°C at night, with 31 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMarch

Typical high23.9°C

Typical low12.8°C

Rain in March31 mm

Comfort

March

March · February · December

94climate match

Beach

February

February · January · March

72climate match

Outdoors

April

April · October · November

94climate match

The weakest month is July, scoring 46 against March’s 94 — days reach only 14.1°C, 10° below the 24°C the score treats as ideal.

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

8926.1° / 14.5°

Feb

9225.9° / 14.7°

Mar

9423.9° / 12.8°

Apr

7620.5° / 9.9°

May

6117.1° / 8.1°

Jun

4814.5° / 6.2°

Jul

4614.1° / 5.6°

Aug

4915.2° / 5.8°

Sep

5817.4° / 7.1°

Oct

7020° / 8.6°

Nov

8022.1° / 10.8°

Dec

9124.1° / 12.5°

Monthly climate evidence for Bacchus Marsh — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 45 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	26.1°C	14.5°C	43 mm	5	20.1°C	14 h 30	89	Strong coverage
February	25.9°C	14.7°C	39 mm	3.9	20.7°C	13 h 33	92	Strong coverage
March	23.9°C	12.8°C	31 mm	4.8	19.9°C	12 h 26	94	Strong coverage
April	20.5°C	9.9°C	39 mm	6.1	17.7°C	11 h 10	76	Strong coverage
May	17.1°C	8.1°C	34 mm	6.7	15.2°C	10 h 08	61	Strong coverage
June	14.5°C	6.2°C	39 mm	7.6	13.0°C	9 h 34	48	Strong coverage
July	14.1°C	5.6°C	32 mm	8.1	11.6°C	9 h 47	46	Strong coverage
August	15.2°C	5.8°C	39 mm	8.7	11.1°C	10 h 41	49	Strong coverage
September	17.4°C	7.1°C	44 mm	8.5	12.1°C	11 h 54	58	Strong coverage
October	20°C	8.6°C	44 mm	8	14.3°C	13 h 08	70	Strong coverage
November	22.1°C	10.8°C	54 mm	6.9	16.5°C	14 h 13	80	Strong coverage
December	24.1°C	12.5°C	45 mm	5.8	18.5°C	14 h 45	91	Strong coverage

What has changed

Bacchus Marsh runs +0.6°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+0.9

Feb

+0.2

Mar

+0.4

Apr

+0.2

May

+0.3

Jun

+0.3

Jul

+0.6

Aug

+0.6

Sep

+1.1

Oct

+1.1

Nov

+0.8

Dec

+0.8

March daytime highs, 2011–2025. Last recorded: 26.2°C.

Records at LAVERTON RAAF, 1943–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	45.6°C27 Jan 2026	5.2°C19 Jan 2004	90 mm29 Jan 1963	141 mm1963 · driest 0 mm in 2009	83
February	47.5°C7 Feb 2009	5.0°C24 Feb 1949	118 mm6 Feb 2011	272 mm1973 · driest 0 mm in 1991	83
March	41.4°C7 Mar 1991	2.7°C26 Mar 2005	92 mm23 Mar 2001	140 mm2001 · driest 4 mm in 2024	83
April	35.5°C10 Apr 2005	0.3°C30 Apr 2009	81 mm23 Apr 1960	186 mm1960 · driest 4 mm in 2019	83
May	28.0°C1 May 2026	-0.9°C16 May 1946	48 mm30 May 1969	123 mm1974 · driest 5 mm in 1984	83
June	24.3°C2 Jun 1957	-3.3°C16 Jun 1969	30 mm1 Jun 2013	97 mm1991 · driest 10 mm in 1969	83
July	23.5°C30 Jul 1975	-4.4°C15 Jul 1984	40 mm30 Jul 1987	112 mm1952 · driest 10 mm in 1979	83
August	26.8°C27 Aug 2007	-3.7°C8 Aug 1944	40 mm7 Aug 1978	89 mm1975 · driest 11 mm in 1944	82
September	31.3°C23 Sep 2017	-1.7°C13 Sep 1971	37 mm15 Sep 1993	128 mm1993 · driest 6 mm in 2023	82
October	37.2°C12 Oct 2006	-1.0°C17 Oct 2000	58 mm16 Oct 1983	165 mm1975 · driest 5 mm in 2006	83
November	42.4°C21 Nov 2019	0.8°C2 Nov 1950	60 mm7 Nov 1971	139 mm1954 · driest 4 mm in 1967	83
December	45.2°C20 Dec 2019	3.6°C15 Dec 1986	56 mm2 Dec 1987	115 mm1985 · driest 2 mm in 1972	83

Typical days per month at LAVERTON RAAF, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	14	7	0	1
February	14	7	0	1
March	11	4	0	<1
April	5	<1	0	1
May	<1	0	0	<1
June	0	0	<1	1
July	0	0	1	<1
August	0	0	<1	<1
September	<1	<1	<1	1
October	5	2	<1	1
November	8	4	0	2
December	11	5	0	2

How often, not how much — every day in LAVERTON RAAF’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	78%	15%	4%	12%	23.8–28.0°C
February	78%	15%	4%	10%	23.6–27.5°C
March	67%	17%	3%	15%	22.0–25.5°C
April	40%	22%	4%	23%	18.4–22.3°C
May	15%	26%	3%	30%	15.5–18.3°C
June	<1%	27%	3%	28%	13.3–15.4°C
July	<1%	28%	2%	32%	12.8–15.0°C
August	4%	31%	3%	41%	13.8–16.4°C
September	19%	31%	4%	39%	15.7–18.7°C
October	32%	30%	5%	36%	17.8–21.2°C
November	45%	26%	6%	28%	20.0–23.3°C
December	61%	21%	4%	19%	22.0–26.0°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.

1945Each stripe is one year’s mean temperature against the 80-year average. Warmest: 2007. Coolest: 1949.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2177394
NOAA station: ASN00087031 · LAVERTON RAAF
Station distance: 34.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude -37.67°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 45 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 LAVERTON RAAF is what differs

Point Cook→Tarneit→Werribee→Hoppers Crossing→Truganina→Wyndham Vale→

Or put two places side by side: Bacchus Marsh vs Point Cook

Best time to visitBacchus Marsh.