Australia · 1991–2020

Best time to visit
St Clair.

April leads for comfortable weather in St Clair: typically 23.9°C by day, 12.9°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high23.9°C

Typical low12.9°C

Rain in April72 mm

Comfort

April

April · October · September

87climate match

Beach

January

January · December · February

77climate match

Outdoors

May

May · August · September

93climate match

The weakest month is June, scoring 57 against April’s 87 — days reach only 17.6°C, 6° below the 24°C the score treats as ideal, and nights drop to 7.2°C.

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

6530.1° / 18°

Feb

6328.8° / 17.8°

Mar

7726.8° / 16.1°

Apr

8723.9° / 12.9°

May

7520.6° / 9°

Jun

5717.6° / 7.2°

Jul

5917.4° / 5.8°

Aug

6719° / 6.4°

Sep

8322.4° / 9.3°

Oct

8524.8° / 11.9°

Nov

8326.6° / 14.4°

Dec

7428.5° / 16.2°

Monthly climate evidence for St Clair — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	30.1°C	18°C	74 mm	7.7	14 h 10	65	Good coverage
February	28.8°C	17.8°C	122 mm	7.5	13 h 22	63	Good coverage
March	26.8°C	16.1°C	86 mm	8.3	12 h 24	77	Good coverage
April	23.9°C	12.9°C	72 mm	7	11 h 18	87	Good coverage
May	20.6°C	9°C	43 mm	5.2	10 h 24	75	Good coverage
June	17.6°C	7.2°C	74 mm	6.3	9 h 55	57	Good coverage
July	17.4°C	5.8°C	41 mm	5.2	10 h 06	59	Good coverage
August	19°C	6.4°C	39 mm	4.1	10 h 52	67	Good coverage
September	22.4°C	9.3°C	37 mm	4.7	11 h 56	83	Good coverage
October	24.8°C	11.9°C	63 mm	6	13 h	85	Good coverage
November	26.6°C	14.4°C	64 mm	7	13 h 56	83	Good coverage
December	28.5°C	16.2°C	68 mm	7.6	14 h 23	74	Good coverage

Records at HORSLEY PARK EQUESTRIAN CENTRE, 1997–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	47.0°C4 Jan 2020	10.4°C12 Jan 2012	114 mm29 Jan 2013	255 mm2016 · driest 5 mm in 2001	29
February	46.4°C1 Feb 2020	10.4°C24 Feb 2008	192 mm10 Feb 2020	462 mm2020 · driest 9 mm in 2000	29
March	40.5°C13 Mar 1998	7.2°C31 Mar 2008	94 mm21 Mar 2021	318 mm2021 · driest 2 mm in 2001	29
April	35.9°C9 Apr 2018	1.9°C23 Apr 2006	131 mm6 Apr 2024	298 mm2015 · driest 3 mm in 2006	29
May	28.1°C1 May 2016	0.8°C28 May 2023	78 mm19 May 1998	182 mm2003 · driest 0 mm in 2024	29
June	24.7°C14 Jun 2004	-1.8°C30 Jun 2010	130 mm6 Jun 2016	298 mm2007 · driest 1 mm in 2014	29
July	27.3°C30 Jul 2017	-2.3°C17 Jul 2007	122 mm3 Jul 2022	223 mm2022 · driest 0 mm in 2017	29
August	29.3°C30 Aug 2024	-0.5°C13 Aug 2005	57 mm20 Aug 2007	157 mm1998 · driest 2 mm in 2005	28
September	36.0°C23 Sep 2017	0.7°C13 Sep 2004	69 mm7 Sep 2006	125 mm2006 · driest 2 mm in 2017	29
October	38.3°C22 Oct 2025	3.6°C8 Oct 1998	61 mm21 Oct 2004	203 mm2004 · driest 2 mm in 2002	29
November	42.0°C27 Nov 1997	5.6°C3 Nov 2022	70 mm27 Nov 2007	194 mm2007 · driest 10 mm in 2002	29
December	44.4°C31 Dec 2019	8.9°C13 Dec 2022	47 mm4 Dec 2014	173 mm2014 · driest 2 mm in 2019	28

Typical days per month at HORSLEY PARK EQUESTRIAN CENTRE, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	26	14	2
February	22	10	3
March	20	6	3
April	11	1	2
May	2	0	1
June	0	0	2
July	<1	0	1
August	1	0	1
September	7	2	1
October	14	5	2
November	17	7	2
December	23	11	2

How often, not how much — every day in HORSLEY PARK EQUESTRIAN CENTRE’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	73%	27%	8%	35%	27.8–32.1°C
February	72%	28%	11%	34%	26.5–30.5°C
March	70%	30%	10%	34%	25.3–28.4°C
April	73%	22%	7%	23%	22.3–25.5°C
May	52%	18%	5%	20%	19.5–21.9°C
June	11%	20%	6%	21%	16.7–18.7°C
July	11%	19%	3%	15%	16.4–18.5°C
August	32%	14%	4%	12%	17.9–20.5°C
September	64%	17%	4%	15%	21.1–24.0°C
October	71%	19%	6%	18%	22.7–26.9°C
November	73%	24%	8%	26%	24.0–29.1°C
December	75%	24%	7%	24%	26.2–31.1°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 27-year average. Warmest: 2019. Coolest: 2008.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 8349321
NOAA station: ASN00067119 · HORSLEY PARK EQUESTRIAN CENTRE
Station distance: 8.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude -33.80°, mid-month, sunrise to sunset including refraction. Not a station measurement.
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 HORSLEY PARK EQUESTRIAN CENTRE is what differs

Mount Druitt→Bossley Park→Edensor Park→Colyton→Cecil Hills→Erskine Park→

Or put two places side by side: St Clair vs Mount Druitt

Best time to visitSt Clair.

April

January

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
St Clair.

The whole year,
without the guesswork.

Nearby, measured,
and named.