Australia · 1991–2020

Best time to visit
Lake Munmorah.

October leads for comfortable weather in Lake Munmorah: typically 22.8°C by day, 14.9°C at night, with 71 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high22.8°C

Typical low14.9°C

Rain in October71 mm

Comfort

October

October · November · December

87climate match

Beach

January

January · December · February

75climate match

Outdoors

August

August · September · July

86climate match

The weakest month is June, scoring 49 against October’s 87 — days reach only 18°C, 6° below the 24°C the score treats as ideal, and 159 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

7326.2° / 19.8°

Feb

6626.1° / 20°

Mar

7225.2° / 18.9°

Apr

7623.1° / 16.1°

May

6520.3° / 13.1°

Jun

4918° / 11.1°

Jul

5817.5° / 9.8°

Aug

6718.9° / 10.5°

Sep

7821.1° / 12.8°

Oct

8722.8° / 14.9°

Nov

8423.9° / 16.8°

Dec

8125.1° / 18.5°

Monthly climate evidence for Lake Munmorah — 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	26.2°C	19.8°C	83 mm	8.2	22.6°C	14 h 07	73	Strong coverage
February	26.1°C	20°C	124 mm	9.1	23.0°C	13 h 20	66	Good coverage
March	25.2°C	18.9°C	116 mm	9.3	23.0°C	12 h 23	72	Good coverage
April	23.1°C	16.1°C	134 mm	9.5	22.3°C	11 h 19	76	Strong coverage
May	20.3°C	13.1°C	135 mm	9.3	21.0°C	10 h 26	65	Strong coverage
June	18°C	11.1°C	159 mm	10.3	19.6°C	9 h 58	49	Strong coverage
July	17.5°C	9.8°C	87 mm	7.4	18.6°C	10 h 09	58	Strong coverage
August	18.9°C	10.5°C	71 mm	6	18.1°C	10 h 54	67	Strong coverage
September	21.1°C	12.8°C	70 mm	7.5	18.3°C	11 h 56	78	Strong coverage
October	22.8°C	14.9°C	71 mm	7.3	19.0°C	12 h 58	87	Strong coverage
November	23.9°C	16.8°C	90 mm	8.4	20.0°C	13 h 53	84	Strong coverage
December	25.1°C	18.5°C	71 mm	7.3	21.2°C	14 h 20	81	Strong coverage

Records at NORAH HEAD AWS, 1995–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	41.4°C18 Jan 2003	14.5°C18 Jan 2009	129 mm18 Jan 2026	232 mm2016 · driest 0 mm in 1997	31
February	39.7°C3 Feb 2011	13.9°C29 Feb 2008	95 mm7 Feb 2020	387 mm2002 · driest 10 mm in 1997	32
March	38.1°C6 Mar 2023	12.0°C31 Mar 2019	130 mm24 Mar 2003	446 mm2021 · driest 13 mm in 1998	32
April	33.6°C12 Apr 2006	7.9°C29 Apr 2008	121 mm20 Apr 2024	405 mm1999 · driest 18 mm in 1995	32
May	28.1°C23 May 2016	6.9°C29 May 2000	113 mm9 May 2001	522 mm2001 · driest 9 mm in 2004	32
June	26.3°C13 Jun 2019	5.3°C30 Jun 2010	235 mm9 Jun 2007	575 mm2007 · driest 1 mm in 2001	32
July	24.8°C30 Jul 2023	4.0°C17 Jul 2007	112 mm5 Jul 1997	384 mm1997 · driest 1 mm in 1998	32
August	29.4°C21 Aug 1995	4.6°C5 Aug 2015	115 mm31 Aug 1996	436 mm2025 · driest 1 mm in 2005	31
September	33.5°C26 Sep 2013	6.1°C6 Sep 1995	61 mm6 Sep 2008	204 mm2015 · driest 4 mm in 2003	31
October	36.5°C13 Oct 2004	8.5°C13 Oct 2012	89 mm2 Oct 2004	245 mm2018 · driest 1 mm in 1996	31
November	41.5°C29 Nov 2020	8.8°C16 Nov 2006	120 mm18 Nov 2013	305 mm2013 · driest 0 mm in 1996	31
December	40.7°C24 Dec 2005	11.2°C13 Dec 1995	79 mm11 Dec 2002	173 mm2020 · driest 0 mm in 1996	31

Typical days per month at NORAH HEAD AWS, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	20	3	2
February	19	2	4
March	16	1	4
April	7	<1	4
May	1	0	4
June	0	0	4
July	0	0	3
August	1	0	2
September	4	1	2
October	7	2	2
November	9	2	3
December	15	2	2

How often, not how much — every day in NORAH HEAD AWS’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	72%	28%	8%	36%	25.5–27.8°C
February	66%	34%	14%	43%	24.9–27.7°C
March	65%	34%	13%	44%	24.0–26.9°C
April	65%	32%	13%	40%	22.0–24.4°C
May	40%	31%	13%	36%	19.5–21.8°C
June	13%	33%	13%	39%	17.2–19.0°C
July	13%	26%	10%	29%	16.8–18.8°C
August	30%	21%	7%	27%	18.2–20.2°C
September	54%	25%	7%	27%	19.9–23.1°C
October	65%	24%	6%	29%	21.6–24.8°C
November	68%	28%	10%	33%	22.5–25.5°C
December	75%	24%	8%	28%	22.9–26.8°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.

1996Each stripe is one year’s mean temperature against the 29-year average. Warmest: 2024. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8310728
NOAA station: ASN00061366 · NORAH HEAD AWS
Station distance: 9.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude -33.20°, 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 NORAH HEAD AWS is what differs

Swansea→Caves Beach→Gwandalan→Nords Wharf→Murrays Beach→Swansea Heads→

Or put two places side by side: Lake Munmorah vs Swansea

Best time to visitLake Munmorah.