Australia · 1991–2020

Best time to visit
Mount Gambier.

March leads for comfortable weather in Mount Gambier: typically 23.9°C by day, 9.8°C at night, with 36 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMarch

Typical high23.9°C

Typical low9.8°C

Rain in March36 mm

Comfort

March

March · February · December

87climate match

Beach

February

February · January · March

63climate match

Outdoors

April

April · March · November

85climate match

The weakest month is July, scoring 27 against March’s 87 — days reach only 13.6°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

8226.2° / 10.1°

Feb

8526.2° / 11.1°

Mar

8723.9° / 9.8°

Apr

6720.2° / 7.9°

May

4716.5° / 6.6°

Jun

3214.1° / 5.2°

Jul

2713.6° / 4.8°

Aug

3114.6° / 4.9°

Sep

4316.5° / 5.4°

Oct

5819° / 6°

Nov

7421.7° / 7.9°

Dec

8524° / 9.1°

Monthly climate evidence for Mount Gambier — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 34 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	26.2°C	10.1°C	35 mm	5.1	17.3°C	14 h 31	82	Good coverage
February	26.2°C	11.1°C	25 mm	4	17.6°C	13 h 34	85	Good coverage
March	23.9°C	9.8°C	36 mm	6.1	17.0°C	12 h 27	87	Good coverage
April	20.2°C	7.9°C	53 mm	8.9	16.4°C	11 h 10	67	Good coverage
May	16.5°C	6.6°C	72 mm	11.7	16.2°C	10 h 07	47	Good coverage
June	14.1°C	5.2°C	92 mm	13.6	15.8°C	9 h 33	32	Good coverage
July	13.6°C	4.8°C	102 mm	15.6	15.1°C	9 h 47	27	Good coverage
August	14.6°C	4.9°C	99 mm	15.6	14.3°C	10 h 40	31	Good coverage
September	16.5°C	5.4°C	77 mm	13	13.9°C	11 h 54	43	Good coverage
October	19°C	6°C	55 mm	10	14.3°C	13 h 08	58	Good coverage
November	21.7°C	7.9°C	46 mm	7.8	15.1°C	14 h 14	74	Good coverage
December	24°C	9.1°C	41 mm	6.8	16.0°C	14 h 46	85	Good coverage

Records at MOUNT GAMBIER POST OFFICE, 1908–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	44.1°C16 Jan 2014	1.7°C9 Jan 1957	82 mm13 Jan 2011	120 mm2011 · driest 2 mm in 1912	78
February	43.1°C1 Feb 1912	0.0°C6 Feb 1980	83 mm18 Feb 1946	119 mm1946 · driest 1 mm in 2024	79
March	41.3°C17 Mar 2008	1.8°C21 Mar 2015	59 mm16 Mar 1946	188 mm1946 · driest 3 mm in 1925	79
April	35.8°C1 Apr 2014	0.0°C21 Apr 1955	57 mm11 Apr 1948	169 mm1956 · driest 0 mm in 1923	78
May	28.1°C6 May 1911	-1.4°C20 May 1950	69 mm15 May 1909	168 mm1909 · driest 19 mm in 2005	78
June	21.7°C2 Jun 1957	-3.0°C10 Jun 2006	50 mm22 Jun 2016	201 mm1915 · driest 15 mm in 1937	79
July	21.4°C21 Jul 1926	-3.3°C12 Jul 1954	49 mm11 Jul 1955	227 mm1910 · driest 35 mm in 1997	80
August	26.6°C30 Aug 2007	-2.2°C2 Aug 1956	46 mm8 Aug 1955	195 mm1955 · driest 14 mm in 1914	79
September	30.4°C28 Sep 1928	-1.7°C26 Sep 1954	53 mm8 Sep 2016	164 mm1912 · driest 12 mm in 1999	78
October	36.8°C10 Oct 1911	-1.1°C16 Oct 1914	41 mm31 Oct 1997	148 mm1949 · driest 4 mm in 2015	78
November	38.9°C18 Nov 1921	1.0°C2 Nov 1980	69 mm3 Nov 2007	108 mm2007 · driest 9 mm in 1911	78
December	43.3°C31 Dec 2007	2.1°C7 Dec 2006	75 mm12 Dec 2008	110 mm2008 · driest 1 mm in 1915	77

Typical days per month at MOUNT GAMBIER POST OFFICE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	13	7	0	<1
February	14	7	0	<1
March	10	5	0	<1
April	5	<1	0	2
May	<1	0	<1	2
June	0	0	<1	3
July	0	0	<1	3
August	0	0	<1	3
September	<1	0	<1	2
October	4	1	<1	1
November	7	3	0	1
December	10	5	0	1

How often, not how much — every day in MOUNT GAMBIER POST OFFICE’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	67%	16%	3%	12%	22.2–27.6°C
February	70%	14%	2%	12%	22.4–27.8°C
March	57%	19%	3%	21%	20.9–24.9°C
April	31%	31%	6%	43%	17.5–21.7°C
May	9%	40%	7%	57%	15.0–17.8°C
June	<1%	48%	10%	67%	13.1–14.8°C
July	0%	53%	10%	76%	12.6–14.1°C
August	2%	51%	9%	72%	13.4–15.6°C
September	12%	44%	7%	62%	14.9–17.3°C
October	25%	36%	5%	45%	16.4–20.2°C
November	37%	27%	3%	29%	18.1–22.6°C
December	52%	22%	3%	21%	20.3–24.7°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.

1908Each stripe is one year’s mean temperature against the 46-year average. Warmest: 1921. Coolest: 1956.2013

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2156643
NOAA station: ASN00026020 · MOUNT GAMBIER POST OFFICE
Station distance: 0.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude -37.83°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 34 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 MOUNT GAMBIER POST OFFICE is what differs

Moorak→Worrolong→Compton→Sutton Town→Ob Flat→Glenburnie→

Or put two places side by side: Mount Gambier vs Moorak

Best time to visitMount Gambier.