Australia · 1991–2020

Best time to visit
Mount Martha.

January leads for comfortable weather in Mount Martha: typically 24.6°C by day, 13.9°C at night, with 37 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJanuary

Typical high24.6°C

Typical low13.9°C

Rain in January37 mm

Comfort

January

January · February · March

94climate match

Beach

February

February · January · March

67climate match

Outdoors

April

April · November · October

87climate match

The weakest month is July, scoring 37 against January’s 94 — days reach only 13.7°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

9424.6° / 13.9°

Feb

9325° / 14.3°

Mar

8923.2° / 12.6°

Apr

6819.8° / 10°

May

5016.6° / 8.4°

Jun

4014.2° / 6.8°

Jul

3713.7° / 6.4°

Aug

3914.6° / 6.6°

Sep

4916.4° / 7.6°

Oct

6118.7° / 8.9°

Nov

7420.7° / 10.7°

Dec

8422.5° / 12°

Monthly climate evidence for Mount Martha — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 17 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	24.6°C	13.9°C	37 mm	5.1	18.9°C	14 h 33	94	Strong coverage
February	25°C	14.3°C	40 mm	4.5	19.6°C	13 h 35	93	Strong coverage
March	23.2°C	12.6°C	43 mm	6.4	19.0°C	12 h 27	89	Strong coverage
April	19.8°C	10°C	67 mm	8.8	17.4°C	11 h 09	68	Strong coverage
May	16.6°C	8.4°C	75 mm	11.8	15.6°C	10 h 05	50	Strong coverage
June	14.2°C	6.8°C	74 mm	11.2	13.9°C	9 h 31	40	Strong coverage
July	13.7°C	6.4°C	73 mm	12.4	12.7°C	9 h 44	37	Strong coverage
August	14.6°C	6.6°C	77 mm	13.4	12.2°C	10 h 39	39	Strong coverage
September	16.4°C	7.6°C	72 mm	11.7	12.7°C	11 h 54	49	Strong coverage
October	18.7°C	8.9°C	64 mm	10.1	14.0°C	13 h 09	61	Strong coverage
November	20.7°C	10.7°C	55 mm	8	15.7°C	14 h 16	74	Strong coverage
December	22.5°C	12°C	52 mm	6.8	17.4°C	14 h 49	84	Strong coverage

Records at CERBERUS, 1990–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	44.1°C29 Jan 2009	5.2°C4 Jan 2009	39 mm23 Jan 2020	94 mm2011 · driest 1 mm in 2008	36
February	45.8°C7 Feb 2009	5.0°C14 Feb 1996	89 mm3 Feb 2005	131 mm2005 · driest 2 mm in 2022	36
March	39.9°C7 Mar 1991	2.2°C26 Mar 2005	39 mm5 Mar 2022	78 mm2012 · driest 3 mm in 2024	36
April	34.1°C1 Apr 2014	-0.3°C30 Apr 2009	104 mm23 Apr 2001	193 mm2001 · driest 16 mm in 2025	36
May	27.8°C1 May 2026	-3.2°C14 May 1991	55 mm4 May 2012	165 mm2012 · driest 20 mm in 2005	36
June	21.7°C8 Jun 2005	-2.8°C23 Jun 1991	41 mm29 Jun 2014	147 mm2004 · driest 2 mm in 1994	36
July	21.9°C18 Jul 2013	-3.0°C3 Jul 2017	39 mm24 Jul 2003	165 mm1996 · driest 19 mm in 1994	37
August	25.1°C27 Aug 2007	-2.5°C29 Aug 2018	45 mm27 Aug 1999	130 mm2005 · driest 8 mm in 1998	36
September	28.9°C30 Sep 2023	-0.3°C12 Sep 1999	42 mm13 Sep 2020	139 mm1996 · driest 31 mm in 2008	36
October	34.7°C12 Oct 2006	-2.5°C31 Oct 1991	61 mm31 Oct 2010	138 mm2022 · driest 15 mm in 2015	36
November	38.8°C21 Nov 2019	1.8°C2 Nov 1992	47 mm14 Nov 2022	134 mm2022 · driest 13 mm in 2001	36
December	42.4°C19 Dec 2015	3.3°C4 Dec 2008	51 mm13 Dec 2008	98 mm2018 · driest 6 mm in 1997	36

Typical days per month at CERBERUS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	11	5	0	1
February	12	6	0	1
March	9	4	0	1
April	3	<1	0	2
May	<1	0	<1	2
June	0	0	<1	2
July	0	0	1	2
August	0	0	<1	2
September	<1	0	<1	2
October	4	<1	<1	2
November	6	2	0	2
December	8	4	0	2

How often, not how much — every day in CERBERUS’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	71%	17%	4%	12%	23.1–26.4°C
February	75%	15%	4%	13%	23.2–27.0°C
March	65%	20%	4%	17%	21.7–25.0°C
April	37%	29%	5%	35%	18.2–21.8°C
May	10%	37%	7%	48%	15.8–17.9°C
June	<1%	38%	8%	55%	13.5–15.1°C
July	<1%	41%	6%	57%	12.8–14.5°C
August	3%	41%	6%	56%	13.5–15.7°C
September	16%	37%	7%	47%	15.2–17.6°C
October	28%	34%	7%	44%	17.5–19.7°C
November	37%	27%	7%	32%	19.1–22.5°C
December	49%	23%	5%	20%	20.8–24.6°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.

1991Each stripe is one year’s mean temperature against the 35-year average. Warmest: 2007. Coolest: 1995.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2156578
NOAA station: ASN00086361 · CERBERUS
Station distance: 17.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude -38.27°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 17 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 CERBERUS is what differs

Mornington→Rosebud→Hastings→Rye→Dromana→Capel Sound→

Or put two places side by side: Mount Martha vs Mornington

Best time to visitMount Martha.