
Dunedin's beloved surf beach sits below dramatic volcanic headlands, facing the full force of the Southern Ocean. St Clair's tides are shaped by this southern exposure, creating powerful swells that roll in from the subantarctic waters, and a tidal range that transforms the long, sandy stretch with every cycle.
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How the tides and swell change through the year at Otago locations.
Cool water but summer warmth, fun swells.
Deep Southern Ocean groundswells, epic quality.
Cold but consistent — the deep south delivers.
Milder conditions, still plenty of swell.
Annual tide statistics computed from verified LINZ data for St Clair.
2.3m on 3 Jan at 04:08
0m on 3 Jan at 23:25
1.69m between high and low
October — highest avg high tides
Two high and two low tides daily
2.3m — from lowest low to highest high
High and low tide times for the next 7 days, drawn from verified LINZ data.
| Day | High tides | Low tides |
|---|---|---|
| Wed 9 Sep | 01:38 · 2.1m, 14:08 · 2.2m | 08:28 · 0.1m, 20:59 · 0.1m |
| Thu 10 Sep | 02:29 · 2.2m, 14:58 · 2.3m | 09:20 · 0m, 21:47 · 0.1m |
| Fri 11 Sep | 03:18 · 2.2m, 15:46 · 2.3m | 10:09 · 0m, 22:33 · 0.1m |
| Sat 12 Sep | 04:06 · 2.2m, 16:32 · 2.2m | 10:57 · 0.1m, 23:18 · 0.1m |
| Sun 13 Sep | 04:53 · 2.2m, 17:17 · 2.2m | 11:43 · 0.1m |
| Mon 14 Sep | 05:41 · 2.1m, 18:02 · 2.1m | 00:03 · 0.2m, 12:28 · 0.2m |
| Tue 15 Sep | 06:28 · 2m, 18:48 · 1.9m | 00:47 · 0.3m, 13:13 · 0.3m |