Margaret River weather in September

In September, Margaret River sees average daytime highs of 16°C and overnight lows near 12°C, with 78 mm of rain across 12.3 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Margaret River's 12th-clearest and 5th-windiest month. For the whole year in context, see Margaret River's year-round climate.

Daytime high: 16°; 10th warmest
Overnight low: 12°; 2nd coldest
Rainfall: 78 mm; 12.3 wet days
Daylight: 11 h 48 min; 6:20 AM – 6:08 PM
Cloud cover: 61%; 12th clearest
Wind: 23 km/h; 5th windiest
Solar energy: 4.05 kWh/m²
Travel score: 4.8; out of 10

Margaret River is town in Western Australia.

Density: 124/km²; people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Margaret River year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical September day in Margaret River reaches about 16°C in the afternoon and slips back to 12°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 18°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	17
Avg low (°C)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12

	Avg high (°C)	Avg low (°C)
1	16	12
2	16	12
3	16	12
4	16	12
5	16	12
6	16	12
7	16	12
8	16	12
9	16	12
10	16	12
11	16	12
12	16	12
13	16	12
14	16	12
15	16	12
16	16	12
17	16	12
18	16	12
19	16	12
20	16	12
21	16	12
22	16	12
23	16	12
24	16	12
25	16	12
26	16	12
27	16	12
28	16	12
29	16	12
30	17	12

Margaret River weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	22° / 17°	12	1.9	14	8.4
Feb	23° / 17°	9	1.6	13.3	8.6
Mar	22° / 17°	22	3.3	12.3	8.0
Apr	21° / 16°	34	6.1	11.2	7.0
May	19° / 15°	94	10.9	10.3	6.0
Jun	17° / 13°	136	14.4	9.8	4.9
Jul	16° / 13°	153	16.1	10	4.4
Aug	16° / 12°	115	14.1	10.7	4.5
Sep	16° / 12°	78	12.3	11.8	4.8
Oct	17° / 13°	41	6.9	12.9	6.1
Nov	19° / 14°	26	5.1	13.8	7.1
Dec	21° / 16°	13	2.8	14.2	7.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 57%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	46	46	46	45	45	44	44	44	43	44	43	43	43	43	43	43	43	43	42	42	42	42	42	41	41	41	43	43	43	44
Cloudier (%)	54	54	54	55	55	56	56	56	57	56	57	57	57	57	57	57	57	57	58	58	58	58	58	59	59	59	57	57	57	56

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	44	56
9	43	57
10	44	56
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	42	58
24	41	59
25	41	59
26	41	59
27	43	57
28	43	57
29	43	57
30	44	56

Chance of precipitation in September

Any precipitation

Margaret River gets around 78 mm of rain over 12.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 44% on the wettest days. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	44	44	43	43	43	42	42	41	40	40	40	40	40	40	40	40	40	40	40	40	40	40	40	39	39	38	38	37	36	35

	Rain chance (%)
1	44
2	44
3	43
4	43
5	43
6	42
7	42
8	41
9	40
10	40
11	40
12	40
13	40
14	40
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	39
25	39
26	38
27	38
28	37
29	36
30	35

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	96	96	96	95	95	95	95	95	95	95	95	95	95	94	94	94	94	94	95	95	94	94	94	94	94	94	94	94	94	94
Comfortable (%)	4	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6	6
Humid (%)	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	96	4	0
2	96	4	0
3	96	4	0
4	95	4	1
5	95	4	1
6	95	4	1
7	95	4	1
8	95	4	1
9	95	4	1
10	95	4	1
11	95	4	1
12	95	4	1
13	95	4	1
14	94	5	1
15	94	5	1
16	94	5	1
17	94	5	1
18	94	5	1
19	95	5	0
20	95	5	0
21	94	6	0
22	94	6	0
23	94	6	0
24	94	6	0
25	94	6	0
26	94	6	0
27	94	6	0
28	94	6	0
29	94	6	0
30	94	6	0

Wind in September

Winds average 23 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	22	22	22	22	22	22	22	22	22
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (km/h)	Feels
1	23	breezy
2	23	breezy
3	23	breezy
4	23	breezy
5	23	breezy
6	23	breezy
7	23	breezy
8	23	breezy
9	23	breezy
10	23	breezy
11	23	breezy
12	23	breezy
13	23	breezy
14	23	breezy
15	23	breezy
16	23	breezy
17	23	breezy
18	23	breezy
19	23	breezy
20	23	breezy
21	23	breezy
22	22	breezy
23	22	breezy
24	22	breezy
25	22	breezy
26	22	breezy
27	22	breezy
28	22	breezy
29	22	breezy
30	22	breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 18 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over September. Sunrise moves from 6:42 AM to 6:00 AM, and sunset from 5:57 PM to 6:18 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.3	11.3	11.3	11.4	11.4	11.4	11.5	11.5	11.5	11.6	11.6	11.6	11.7	11.7	11.8	11.8	11.8	11.9	11.9	11.9	12.0	12.0	12.0	12.1	12.1	12.2	12.2	12.2	12.3	12.3
Sunrise (AM)	6:42	6:40	6:39	6:37	6:36	6:35	6:33	6:32	6:30	6:29	6:28	6:26	6:25	6:23	6:22	6:20	6:19	6:17	6:16	6:14	6:13	6:12	6:10	6:09	6:07	6:06	6:04	6:03	6:01	6:00
Sunset (PM)	5:57	5:58	5:59	5:59	6:00	6:01	6:01	6:02	6:03	6:04	6:04	6:05	6:06	6:06	6:07	6:08	6:08	6:09	6:10	6:11	6:11	6:12	6:13	6:14	6:14	6:15	6:16	6:16	6:17	6:18

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	6:42	5:57
2	11.3	6:40	5:58
3	11.3	6:39	5:59
4	11.4	6:37	5:59
5	11.4	6:36	6:00
6	11.4	6:35	6:01
7	11.5	6:33	6:01
8	11.5	6:32	6:02
9	11.5	6:30	6:03
10	11.6	6:29	6:04
11	11.6	6:28	6:04
12	11.6	6:26	6:05
13	11.7	6:25	6:06
14	11.7	6:23	6:06
15	11.8	6:22	6:07
16	11.8	6:20	6:08
17	11.8	6:19	6:08
18	11.9	6:17	6:09
19	11.9	6:16	6:10
20	11.9	6:14	6:11
21	12.0	6:13	6:11
22	12.0	6:12	6:12
23	12.0	6:10	6:13
24	12.1	6:09	6:14
25	12.1	6:07	6:14
26	12.2	6:06	6:15
27	12.2	6:04	6:16
28	12.2	6:03	6:16
29	12.3	6:01	6:17
30	12.3	6:00	6:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.05 kWh/m².

For context, solar energy here swings from a low near 2.12 kWh/m² to a high of 7.83 kWh/m² in January across the year — September's 4.05 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	3.5	3.5	3.6	3.6	3.6	3.7	3.7	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.1	4.1	4.1	4.2	4.2	4.3	4.3	4.3	4.4	4.4	4.5	4.5	4.5	4.6	4.7	4.7
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.5	Moderate
2	3.5	Moderate
3	3.6	Moderate
4	3.6	Moderate
5	3.6	Moderate
6	3.7	Moderate
7	3.7	Moderate
8	3.8	Moderate
9	3.8	Moderate
10	3.9	Moderate
11	3.9	Moderate
12	3.9	Moderate
13	4.0	Moderate
14	4.0	Bright
15	4.1	Bright
16	4.1	Bright
17	4.1	Bright
18	4.2	Bright
19	4.2	Bright
20	4.3	Bright
21	4.3	Bright
22	4.3	Bright
23	4.4	Bright
24	4.4	Bright
25	4.5	Bright
26	4.5	Bright
27	4.5	Bright
28	4.6	Bright
29	4.7	Bright
30	4.7	Bright

Planning a trip in September

Hazard calendar for Margaret River

In seasonPeak

In September, Margaret River sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Margaret River sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Margaret River's rainy season runs May–September, when most of the year's rain falls.

Cyclone

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Margaret River?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.8

Sightseeing

10th-best month of the year

0.7

Beach & pool

10th-best month of the year

September is a reasonable time to visit Margaret River for sightseeing.

What to pack for Margaret River in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Margaret River sees daytime highs around 16°C and nights near 12°C. Worth packing: a warm layer, rain gear and a windbreaker. About 12 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Margaret River in September

The nearest coast averages about 18°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in April at about 22°C and coldest in September near 18°C.

It's comfortable for a long swim from Dec 17 to Jul 8 — about 6.7 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	21	21	22	22	21	21	20	19	18	18	19	20
Comfort	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Cool	Cool	Cool	Cool	Cool	Refreshing

	Sea temperature (°C)	Comfort
Jan	21	Refreshing
Feb	21	Refreshing
Mar	22	Refreshing
Apr	22	Refreshing
May	21	Refreshing
Jun	21	Refreshing
Jul	20	Cool
Aug	19	Cool
Sep	18	Cool
Oct	18	Cool
Nov	19	Cool
Dec	20	Refreshing

UV index in Margaret River in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Margaret River peaks around January 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	13	11	10	6	4	3	3	4	7	8	10	12
Level	Extreme	Extreme	Very high	High	Moderate	Moderate	Moderate	Moderate	Very high	Very high	Very high	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	11	Extreme
Mar	10	Very high
Apr	6	High
May	4	Moderate
Jun	3	Moderate
Jul	3	Moderate
Aug	4	Moderate
Sep	7	Very high
Oct	8	Very high
Nov	10	Very high
Dec	12	Extreme

Location & terrain

Where is Margaret River?

Margaret River sits at 34.0°S, 115.1°E, 0 m above sea level, in Australia. The nearest listed city is Busselton, 42 km away.

Topography around Margaret River

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Margaret River.

Within 3 km, the terrain around Margaret River has only modest variations in elevation — a maximum elevation change of 80 m around an average of 92 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 191 m; within 80 km, significant variations in elevation — a maximum elevation change of 375 m.

The land around Margaret River is covered by trees (61%) and grassland (27%) within 3 km, trees (44%), grassland (34%) and water (21%) within 16 km, and water (51%) and trees (36%) within 80 km.

3 km

80 m

trees 61%

16 km

191 m

trees 44%

80 km

375 m

water 51%

treesgrasslandcroplandartificial surfaceswater

← August Margaret River year-round climate October →Best places to visit in September

September weather nearby: Busselton 42 km · Bunbury 87 km · Australind 96 km · Mandurah 170 km · Baldivis 194 km · Rockingham 196 km · Kwinana 203 km · Byford 211 km

Australia travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type I; 230 V · 50 Hz
Prices: ≈ 90% of US; price level, 2025
GDP per capita: $65,130; 2025
Happiness: 6.9 / 10; World Happiness, 2025
Homicide rate: 0.9; per 100k, 2023
Road deaths: 4.9; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Margaret River (-33.955°, 115.076°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	16	12
2	16	12
3	16	12
4	16	12
5	16	12
6	16	12
7	16	12
8	16	12
9	16	12
10	16	12
11	16	12
12	16	12
13	16	12
14	16	12
15	16	12
16	16	12
17	16	12
18	16	12
19	16	12
20	16	12
21	16	12
22	16	12
23	16	12
24	16	12
25	16	12
26	16	12
27	16	12
28	16	12
29	16	12
30	17	12

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	44	56
9	43	57
10	44	56
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	42	58
24	41	59
25	41	59
26	41	59
27	43	57
28	43	57
29	43	57
30	44	56

	Rain chance (%)
1	44
2	44
3	43
4	43
5	43
6	42
7	42
8	41
9	40
10	40
11	40
12	40
13	40
14	40
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	39
25	39
26	38
27	38
28	37
29	36
30	35

	Dry (%)	Comfortable (%)	Humid (%)
1	96	4	0
2	96	4	0
3	96	4	0
4	95	4	1
5	95	4	1
6	95	4	1
7	95	4	1
8	95	4	1
9	95	4	1
10	95	4	1
11	95	4	1
12	95	4	1
13	95	4	1
14	94	5	1
15	94	5	1
16	94	5	1
17	94	5	1
18	94	5	1
19	95	5	0
20	95	5	0
21	94	6	0
22	94	6	0
23	94	6	0
24	94	6	0
25	94	6	0
26	94	6	0
27	94	6	0
28	94	6	0
29	94	6	0
30	94	6	0

	Avg high (°C)	Avg low (°C)
1	16	12
2	16	12
3	16	12
4	16	12
5	16	12
6	16	12
7	16	12
8	16	12
9	16	12
10	16	12
11	16	12
12	16	12
13	16	12
14	16	12
15	16	12
16	16	12
17	16	12
18	16	12
19	16	12
20	16	12
21	16	12
22	16	12
23	16	12
24	16	12
25	16	12
26	16	12
27	16	12
28	16	12
29	16	12
30	17	12

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	44	56
9	43	57
10	44	56
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	42	58
24	41	59
25	41	59
26	41	59
27	43	57
28	43	57
29	43	57
30	44	56

	Rain chance (%)
1	44
2	44
3	43
4	43
5	43
6	42
7	42
8	41
9	40
10	40
11	40
12	40
13	40
14	40
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	39
25	39
26	38
27	38
28	37
29	36
30	35

	Dry (%)	Comfortable (%)	Humid (%)
1	96	4	0
2	96	4	0
3	96	4	0
4	95	4	1
5	95	4	1
6	95	4	1
7	95	4	1
8	95	4	1
9	95	4	1
10	95	4	1
11	95	4	1
12	95	4	1
13	95	4	1
14	94	5	1
15	94	5	1
16	94	5	1
17	94	5	1
18	94	5	1
19	95	5	0
20	95	5	0
21	94	6	0
22	94	6	0
23	94	6	0
24	94	6	0
25	94	6	0
26	94	6	0
27	94	6	0
28	94	6	0
29	94	6	0
30	94	6	0

	Avg high (°C)	Avg low (°C)
1	16	12
2	16	12
3	16	12
4	16	12
5	16	12
6	16	12
7	16	12
8	16	12
9	16	12
10	16	12
11	16	12
12	16	12
13	16	12
14	16	12
15	16	12
16	16	12
17	16	12
18	16	12
19	16	12
20	16	12
21	16	12
22	16	12
23	16	12
24	16	12
25	16	12
26	16	12
27	16	12
28	16	12
29	16	12
30	17	12

	Clearer (%)	Cloudier (%)
1	46	54
2	46	54
3	46	54
4	45	55
5	45	55
6	44	56
7	44	56
8	44	56
9	43	57
10	44	56
11	43	57
12	43	57
13	43	57
14	43	57
15	43	57
16	43	57
17	43	57
18	43	57
19	42	58
20	42	58
21	42	58
22	42	58
23	42	58
24	41	59
25	41	59
26	41	59
27	43	57
28	43	57
29	43	57
30	44	56

	Rain chance (%)
1	44
2	44
3	43
4	43
5	43
6	42
7	42
8	41
9	40
10	40
11	40
12	40
13	40
14	40
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	39
25	39
26	38
27	38
28	37
29	36
30	35

	Dry (%)	Comfortable (%)	Humid (%)
1	96	4	0
2	96	4	0
3	96	4	0
4	95	4	1
5	95	4	1
6	95	4	1
7	95	4	1
8	95	4	1
9	95	4	1
10	95	4	1
11	95	4	1
12	95	4	1
13	95	4	1
14	94	5	1
15	94	5	1
16	94	5	1
17	94	5	1
18	94	5	1
19	95	5	0
20	95	5	0
21	94	6	0
22	94	6	0
23	94	6	0
24	94	6	0
25	94	6	0
26	94	6	0
27	94	6	0
28	94	6	0
29	94	6	0
30	94	6	0