Australia · 1991–2020

Best time to visit
Stanwell Park.

December leads for comfortable weather in Stanwell Park: typically 24°C by day, 17.5°C at night, with 76 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortDecember

Typical high24°C

Typical low17.5°C

Rain in December76 mm

Comfort

December

December · October · November

85climate match

Beach

January

January · December · February

68climate match

Outdoors

September

September · May · July

88climate match

The weakest month is June, scoring 55 against December’s 85 — days reach only 17.6°C, 6° 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

7824.9° / 19.1°

Feb

6924.8° / 19.2°

Mar

7424.1° / 18.2°

Apr

7822.2° / 15.7°

May

7419.9° / 13.1°

Jun

5517.6° / 11.1°

Jul

6017.1° / 10.1°

Aug

6218° / 10.5°

Sep

7720.2° / 12.4°

Oct

8021.6° / 14.1°

Nov

7922.3° / 15.8°

Dec

8524° / 17.5°

Monthly climate evidence for Stanwell Park — 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	24.9°C	19.1°C	80 mm	8.9	22.7°C	14 h 12	78	Good coverage
February	24.8°C	19.2°C	140 mm	9.7	23.2°C	13 h 23	69	Good coverage
March	24.1°C	18.2°C	135 mm	9.9	23.1°C	12 h 24	74	Good coverage
April	22.2°C	15.7°C	108 mm	8.8	22.1°C	11 h 17	78	Good coverage
May	19.9°C	13.1°C	77 mm	6.2	20.8°C	10 h 22	74	Good coverage
June	17.6°C	11.1°C	121 mm	7.9	19.4°C	9 h 53	55	Good coverage
July	17.1°C	10.1°C	78 mm	5.8	18.4°C	10 h 04	60	Good coverage
August	18°C	10.5°C	94 mm	5.4	17.9°C	10 h 51	62	Good coverage
September	20.2°C	12.4°C	55 mm	6	18.1°C	11 h 55	77	Good coverage
October	21.6°C	14.1°C	79 mm	7.7	19.0°C	13 h 01	80	Good coverage
November	22.3°C	15.8°C	95 mm	9.1	20.0°C	13 h 58	79	Good coverage
December	24°C	17.5°C	76 mm	8.6	21.3°C	14 h 26	85	Good coverage

Records at BELLAMBI AWS, 1997–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	36.9°C28 Jan 2025	12.8°C19 Jan 2010	139 mm29 Jan 2013	241 mm2013 · driest 17 mm in 2009	29
February	37.7°C14 Feb 2018	13.1°C29 Feb 2008	137 mm10 Feb 2020	400 mm2020 · driest 6 mm in 2011	29
March	38.4°C6 Mar 2023	10.9°C31 Mar 2019	118 mm27 Mar 2016	369 mm2017 · driest 22 mm in 2009	29
April	32.2°C3 Apr 2005	9.0°C29 Apr 2008	195 mm6 Apr 2024	305 mm2004 · driest 4 mm in 2006	29
May	28.0°C20 May 1998	6.0°C25 May 1998	106 mm14 May 2003	243 mm2003 · driest 4 mm in 2008	30
June	24.4°C14 Jun 2004	5.4°C30 Jun 2010	164 mm5 Jun 2016	437 mm2016 · driest 6 mm in 2025	30
July	26.8°C30 Jul 2017	4.1°C17 Jul 2007	183 mm3 Jul 2022	496 mm2022 · driest 2 mm in 2018	30
August	30.2°C30 Aug 2024	5.3°C29 Aug 2018	240 mm18 Aug 1998	682 mm1998 · driest 2 mm in 2005	29
September	33.9°C19 Sep 2023	6.2°C1 Sep 2012	131 mm11 Sep 2025	201 mm2022 · driest 0 mm in 2017	29
October	37.7°C13 Oct 2004	6.1°C12 Oct 2012	100 mm15 Oct 2011	260 mm2022 · driest 6 mm in 2016	29
November	39.7°C29 Nov 2020	8.9°C16 Nov 2006	155 mm5 Nov 2023	289 mm2023 · driest 10 mm in 2002	29
December	38.3°C1 Dec 2004	10.3°C6 Dec 2010	72 mm26 Dec 2013	201 mm2023 · driest 6 mm in 2019	29

Typical days per month at BELLAMBI AWS, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	14	2	2
February	14	1	4
March	11	<1	4
April	4	<1	3
May	1	0	2
June	0	0	3
July	<1	0	2
August	<1	0	2
September	3	<1	2
October	6	2	2
November	5	1	3
December	9	2	2

How often, not how much — every day in BELLAMBI 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	70%	30%	9%	38%	24.2–25.6°C
February	65%	35%	14%	47%	23.6–25.7°C
March	65%	34%	13%	41%	22.7–24.9°C
April	64%	28%	10%	31%	21.3–23.4°C
May	43%	22%	9%	23%	19.2–21.2°C
June	13%	24%	9%	27%	16.9–18.8°C
July	10%	19%	7%	17%	16.4–18.5°C
August	22%	18%	7%	19%	17.3–19.4°C
September	42%	20%	6%	22%	19.0–22.0°C
October	55%	25%	7%	28%	20.2–23.3°C
November	61%	31%	11%	39%	20.8–23.7°C
December	70%	28%	7%	30%	22.6–25.7°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.

1998Each stripe is one year’s mean temperature against the 28-year average. Warmest: 2025. Coolest: 2008.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2148503
NOAA station: ASN00068228 · BELLAMBI AWS
Station distance: 16.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude -34.23°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 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 BELLAMBI AWS is what differs

Woonona→Corrimal→Helensburgh→Bulli→Thirroul→Bellambi→

Or put two places side by side: Stanwell Park vs Woonona

Best time to visitStanwell Park.