Thistle Island (False Creek) 48 hour detailed Surf Forecast

Lat Long: 34.97° S 136.10° E

Issued: 2 am 21 Aug 2026 (local time)

Forecast update in hr min

Today's Thistle Island (False Creek) sea temperature is

15.2° C

Thistle Island (False Creek) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

How big are the waves at Thistle Island (False Creek) today (21 Aug):

Morning surf: Morning surf (21 Aug, local time) - 8ft (2.5m), 15s period with SW swell.
Afternoon surf: Afternoon surf (21 Aug, local time) - 8ft (2.5m), 17s period with SW swell.
Evening surf: Evening surf (21 Aug, local time) - 10ft (3.0m), 16s period with SW swell.

The current surf forecast for Thistle Island (False Creek) at 6AM is: 2.5m 15s primary swell from a Southwest direction and 1.2m 18s secondary swell from a South-southwest direction (forecast issued at 02:30am August 21). The wind direction is predicted to be cross-onshore.

Time (ACST) & Date	Wave Height	Wave Period
Morning (21 Aug)	8ft (2.5m)	15s
Afternoon (21 Aug)	8ft (2.5m)	17s
Evening (21 Aug)	10ft (3.0m)	16s

Table - waves today at Thistle Island (False Creek). (Swell directed towards the surf break)

	Short Range Forecast Mostly dry. Very mild (max 15°C on Fri night, min 12°C on Fri morning). Wind will be generally light.
	Friday 21								Saturday 22								Sunday 23
	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM
Rating (10 max)	0	0	0	!	!	!	0	!	!	!	0	!	!	!	!	!	!	!	!	!	!	!	!	4
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 15	SW 15	SW 15	SW 15	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16	SW 16	SW 15	SW 15	SW 15	SW 15	SW 15	SW 15	SW 14	SW 14	SW 17	SW 16	SW 16	SW 16	SSW 15
Wave Graph
kJ	3237	3286	2863	2959	4185	3723	3664	3784	3953	3689	3641	3034	2953	2913	2784	2784	2662	2457	1949	3525	2954	2594	2262	1907
Wind (km/h)	WSW	SW	WSW	WSW	WSW	W	W	W	W	WSW	WSW	SW	SW	SW	SW	S	NNE	NNE	NNE	NNE	NNE	NE	NE	NE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross	cross-on	cross-on	cross-on	cross-on	cross-on	on	on	glassy	off	off	off	off	off	cross-off	cross-off	cross-off
High Tide			6:08AM0.92m									7:19AM0.84m									11:10AM0.86m
Low Tide	10:17PM0.09m								10:00PM0.12m							9:18PM0.13m								8:38PM0.10m


	—	—	7:00	—	—	—	—	—	—	—	6:58	—	—	—	—	—	—	—	6:56	—	—	—	—	—
	—	—	—	—	—	5:58	—	—	—	—	—	—	—	5:58	—	—	—	—	—	—	—	5:59	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	13	13	12	12	12	13	14	14	15	14	13	13	13	13	13	13	13	12	13	13	13	14	14	14
Feels °C	8	8	7	8	7	9	9	9	11	10	9	10	11	11	11	13	12	10	11	10	10	11	12	11
Swell 1 Height (m) Direction Period (s)	SW 15	SW 15	SW 15	SW 15	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16	SW 16	SW 15	SW 15	SW 15	SW 15	SW 15	SW 15	SW 14	SW 14	SW 17	SW 16	SW 16	SW 16	SSW 15
kJ	3237	3286	2863	2959	4185	3723	3664	3784	3953	3689	3641	3034	2953	2913	2784	2784	2662	2457	1949	3525	2954	2594	2262	1907
Swell 2 Height (m) Direction Period (s)	SW 20	SW 20	SSW 18	SSW 18	SW 18	—	—	—	—	SW 24	SW 24	SSW 24	SSW 22	SSW 21	SSW 20	SSW 19	SSW 19	SSW 18	SSW 18	—	—	—	—	—
kJ	459	309	913	584	1470	—	—	—	—	22	141	108	308	516	505	1004	983	1056	1399	—	—	—	—	—
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Nearest Offshore or Glassy	Stokes Bay SA - Kangaroo Island	Spits SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Troubridge Point SA - Yorke Peninsula	Victor Harbour (Shark Alley) SA - East Coast	Rhino Head SA - Yorke Peninsula	Parsons Beach SA - Adelaide	A-Bay (Willyama Bay) SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Spits SA - Yorke Peninsula	Pondalowie Bay SA - Yorke Peninsula	West Cape SA - Yorke Peninsula	Sleaford Bay (Wreck Beach) SA - Eyre Peninsula	Sleaford Bay (Wreck Beach) SA - Eyre Peninsula	West Cape SA - Yorke Peninsula	West Cape SA - Yorke Peninsula	Sleaford Bay (Wreck Beach) SA - Eyre Peninsula	Pondalowie Bay SA - Yorke Peninsula	Thistle Island (False Creek) SA - Eyre Peninsula
Rating (10 max)	4	4	4	4	2	4	3	4	3	4	4	4	4	4	4	4	4	5	5	4	4	5	4	4
Distance (km)	121	78	78	78	145	237	84	227	86	78	78	78	78	78	78	74	73	34	34	73	73	34	74	0
Best forecast wave conditions in Eyre Peninsula									Blackfellows	Venus Bay	Yanerbie	Blackfellows	Yanerbie		Blackfellows	Flatrock	Flatrock	Flatrock	Flatrock	Baird Bay Reef	Baird Bay Reef	Sleaford Bay (Wreck Beach)	Blackfellows	Venus Bay
Rating (10 max)									4	4	4	4	4		4	5	5	5	5	4	4	5	4	4
Best forecast wave conditions in Australia	Cyclops WA - Far South	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Supertubes WA - Margaret River	Cyclops WA - Far South	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Point Roadnight VIC - Torquay	Point Roadnight VIC - Torquay	Point Roadnight VIC - Torquay	Bancoora VIC - Torquay	Cathedral Rock VIC - Cape Otway	Cyclops WA - Far South	Luna Park VIC - Far West	Luna Park VIC - Far West	Point Lonsdale VIC - Torquay	Point Lonsdale VIC - Torquay	Quarantine VIC - Mornington Peninsula	Luna Park VIC - Far West	Surfers Point WA - Margaret River
Rating (10 max)	5	7	6	6	6	5	5	7	6	6	7	7	6	7	4	5	4	7	7	4	4	5	5	7
Header Global	Supertubes Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Benkunqut Indonesia	Benkunqut Indonesia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Point Roadnight Australia	Point Roadnight Australia	Point Roadnight Australia	Asu Indonesia	Cathedral Rock Australia	Cathedral Rock Australia	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Benkunqut Indonesia	Quarantine Australia	Easter Reef Australia	Gas Bay Australia
Rating (10 max)	7	7	6	6	6	5	5	7	6	6	7	7	6	7	4	5	5	7	7	6	5	5	5	7

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

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Thistle Island (False Creek) 48 hour detailed Surf Forecast

How big are the waves at Thistle Island (False Creek) today (21 Aug):

Short Range Forecast

Latest Updates

Summer's Short. Life Is Long.

Roadsurfing in the Basque country

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Summer School: The Timeline of The Boardshort

How Our WaveFinder Tool Makes Forecasting Easier Than Ever Before

FREE! Surf-Forecast.com widget for your website