Australia · 1991–2020

Best time to visit
Grafton.

September leads for comfortable weather in Grafton: typically 25.7°C by day, 10.9°C at night, with 40 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.7°C

Typical low10.9°C

Rain in September40 mm

Comfort

September

September · April · May

85climate match

Beach

January

January · November · December

68climate match

Outdoors

July

July · June · August

90climate match

The weakest month is February, scoring 49 against September’s 85 — days average 29.7°C, 6° above the 24°C the score treats as ideal, and 155 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

5030.4° / 19.9°

Feb

4929.7° / 19.8°

Mar

5928.4° / 18.1°

Apr

8326.3° / 14.9°

May

8123.4° / 11.2°

Jun

7221.1° / 8.2°

Jul

7420.9° / 6.8°

Aug

8022.7° / 7.5°

Sep

8525.7° / 10.9°

Oct

7927.2° / 14.1°

Nov

6628.5° / 16.8°

Dec

5529.6° / 18.6°

Monthly climate evidence for Grafton — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 43 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	30.4°C	19.9°C	137 mm	9.1	24.9°C	13 h 51	50	Good coverage
February	29.7°C	19.8°C	155 mm	10.2	25.7°C	13 h 10	49	Good coverage
March	28.4°C	18.1°C	128 mm	11.2	25.4°C	12 h 21	59	Good coverage
April	26.3°C	14.9°C	68 mm	8.1	24.5°C	11 h 25	83	Good coverage
May	23.4°C	11.2°C	76 mm	7.3	23.1°C	10 h 39	81	Good coverage
June	21.1°C	8.2°C	63 mm	5.8	21.5°C	10 h 15	72	Good coverage
July	20.9°C	6.8°C	32 mm	4.6	20.4°C	10 h 24	74	Good coverage
August	22.7°C	7.5°C	44 mm	4.3	19.9°C	11 h 03	80	Good coverage
September	25.7°C	10.9°C	40 mm	5.2	20.2°C	11 h 57	85	Good coverage
October	27.2°C	14.1°C	71 mm	6.8	21.1°C	12 h 52	79	Good coverage
November	28.5°C	16.8°C	108 mm	9.5	22.4°C	13 h 39	66	Good coverage
December	29.6°C	18.6°C	127 mm	10.8	23.7°C	14 h 02	55	Good coverage

Records at GRAFTON OLYMPIC POOL, 1966–2015
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	43.8°C8 Jan 1994	12.8°C3 Jan 1970	131 mm28 Jan 2013	326 mm1974 · driest 11 mm in 1994	49
February	42.1°C21 Feb 2004	12.7°C23 Feb 1972	230 mm24 Feb 2003	456 mm1976 · driest 25 mm in 1967	48
March	39.0°C20 Mar 2002	10.8°C31 Mar 1987	274 mm11 Mar 1974	549 mm1974 · driest 12 mm in 2008	48
April	36.7°C18 Apr 1968	3.6°C30 Apr 2008	135 mm2 Apr 1989	512 mm1988 · driest 13 mm in 1980	48
May	31.7°C10 May 1973	0.5°C23 May 1977	173 mm22 May 2009	430 mm1996 · driest 4 mm in 2004	47
June	30.5°C16 Jun 2002	-2.0°C29 Jun 1990	183 mm13 Jun 1967	437 mm1967 · driest 1 mm in 1968	48
July	28.2°C1 Jul 1970	-2.2°C17 Jul 1970	96 mm9 Jul 1985	194 mm1973 · driest 0 mm in 1972	48
August	36.3°C24 Aug 2009	-0.2°C1 Aug 1982	111 mm21 Aug 2007	193 mm2007 · driest 1 mm in 2012	48
September	38.3°C23 Sep 2003	1.8°C1 Sep 1986	56 mm5 Sep 1971	102 mm1998 · driest 0 mm in 1980	49
October	39.3°C30 Oct 1988	3.9°C9 Oct 1966	99 mm29 Oct 1972	390 mm1972 · driest 8 mm in 2014	49
November	43.8°C19 Nov 1968	6.7°C9 Nov 1971	113 mm8 Nov 1966	279 mm1975 · driest 18 mm in 1968	49
December	43.4°C23 Dec 1990	7.0°C2 Dec 1974	112 mm8 Dec 1993	300 mm1970 · driest 26 mm in 1986	49

Typical days per month at GRAFTON OLYMPIC POOL, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	30	17	4
February	27	13	4
March	28	8	4
April	22	2	2
May	7	<1	2
June	1	0	2
July	1	0	1
August	6	<1	<1
September	17	4	1
October	22	7	2
November	25	10	4
December	28	14	4

How often, not how much — every day in GRAFTON OLYMPIC POOL’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	66%	34%	13%	41%	28.1–32.0°C
February	61%	38%	14%	53%	28.0–31.0°C
March	64%	36%	11%	44%	27.2–29.5°C
April	73%	27%	8%	32%	24.7–27.4°C
May	71%	24%	6%	28%	22.2–24.1°C
June	59%	19%	6%	19%	19.9–21.9°C
July	57%	15%	3%	11%	19.5–21.4°C
August	73%	14%	3%	13%	20.9–23.2°C
September	80%	17%	3%	16%	23.2–26.6°C
October	76%	23%	7%	27%	24.9–28.8°C
November	69%	31%	11%	37%	26.4–30.2°C
December	67%	33%	13%	41%	27.7–31.5°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.

1967Each stripe is one year’s mean temperature against the 45-year average. Warmest: 1998. Coolest: 1967.2014

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2164771
NOAA station: ASN00058130 · GRAFTON OLYMPIC POOL
Station distance: 0.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude -29.68°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 43 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 GRAFTON OLYMPIC POOL is what differs

South Grafton→Waterview Heights→Elland→Copmanhurst→Nymboida→Eatonsville→

Or put two places side by side: Grafton vs South Grafton

Best time to visitGrafton.