Shag Beach surf forecast from 21 Oct 2026:
- Best quality surf: Thursday 22 Oct, 1AM (local time) - 2.5ft (0.8m), 10s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 25 Oct, 4AM (local time) - 2.5ft (0.8m), 18s period, S swell with 395 kJ wave energy.
- Next surfable swell (1★+): Thursday 22 Oct, 1AM (local time) - 2.5ft (0.8m), 10s period with SSW swell.
Best Forecast Surf Conditions for Shag Beach this week:
The surf forecast for Shag Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 22) at 1AM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.5m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shag Beach in the next 16 days are 0.8m 18s and forecast to arrive on Sunday (Oct 25) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Tuesday (Oct 27) at 4AM.
| Wave Type | Time (NZDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 22nd Oct) | 2.5ft (0.8m) 10s |
| Best Surf | 1AM (Thu 22nd Oct) | 2.5ft (0.8m) 10s |
| Most Powerful | 4AM (Sun 25th Oct) | 2.5ft (0.8m) 18s |
Table - best surf conditions forecast for Shag Beach over the next 16 days.
- 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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