Grandma's surf forecast from 8 Oct 2026:
- Best quality surf: Friday 9 Oct, 5AM (local time) - 2.5ft (0.7m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 11 Oct, 2AM (local time) - 2.5ft (0.8m), 18s period, S swell with 399 kJ wave energy.
- Next surfable swell (1★+): Friday 9 Oct, 5AM (local time) - 2.5ft (0.7m), 17s period with SSW swell.
Best Forecast Surf Conditions for Grandma's this week:
The surf forecast for Grandma's over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Oct 09) at 5AM. The primary swell is predicted to be 0.7m and 17s period with a secondary swell of 0.5m and 14s. Another secondary swell of 0.6m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Grandma's in the next 16 days are 0.8m 18s and forecast to arrive on Sunday (Oct 11) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Monday (Oct 12) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 9th Oct) | 2.5ft (0.7m) 17s |
| Best Surf | 5AM (Fri 9th Oct) | 2.5ft (0.7m) 17s |
| Most Powerful | 2AM (Sun 11th Oct) | 2.5ft (0.8m) 18s |
Table - best surf conditions forecast for Grandma's 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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