The main break at Margaret River is a heavy, world-class reef wave with enormous power — a true test of big-wave surfing on the Indian Ocean. The diurnal tides here create a unique rhythm, with just one daily high and low, amplifying the dramatic landscape of granite headlands and limestone caves.
“So happy with my Iso Tides print! It was the perfect meaningful gift, and it looks so good in my dad’s office. He’s stoked with it! Arrived quick and is super high quality ❤️”
How the tides and swell change through the year at Western Australia locations.
Afternoon seabreezes, still plenty of swell.
The peak — massive Indian Ocean groundswells.
Powerful SW swells, cooler temps, less wind.
Fading into smaller but still clean conditions.
Annual tide statistics computed from verified BOM data for Margaret River.
1.3m on 15 Jun at 08:34
0.09m on 24 Dec at 06:01
0.33m between high and low
June — highest avg high tides
Two high and two low tides daily
1.21m — from lowest low to highest high
High and low tide times for the next 7 days, drawn from verified BOM data.
| Day | High tides | Low tides |
|---|---|---|
| Fri 11 Sep | 10:36 · 0.84m, 23:26 · 0.73m | 02:35 · 0.55m, 17:14 · 0.49m |
| Sat 12 Sep | 11:30 · 0.75m, 23:50 · 0.76m | 03:13 · 0.52m, 15:25 · 0.53m |
| Sun 13 Sep | 12:28 · 0.66m, 22:15 · 0.82m | 03:55 · 0.51m, 15:42 · 0.51m |
| Mon 14 Sep | 10:27 · 0.58m, 22:48 · 0.87m | 04:38 · 0.51m, 16:06 · 0.5m |
| Tue 15 Sep | 14:58 · 0.52m, 23:26 · 0.9m | 13:12 · 0.49m, 16:30 · 0.49m |
| Wed 16 Sep | 07:35 · 0.55m, 11:44 · 0.49m | 06:06 · 0.53m, 10:17 · 0.47m, 13:52 · 0.44m |
| Thu 17 Sep | 00:04 · 0.9m, 12:22 · 0.46m | 11:09 · 0.45m, 14:30 · 0.4m |