Ko Samui surf forecast from 5 Nov 2026:
- Best quality surf: No days rated 1★ or higher at Ko Samui in the next 16 days. The closest to surfable is Thursday 12 Nov, 7PM (local time) – 3.5ft (1.1m), 7s period, ESE swell with onshore winds.
- Most powerful swell: Thursday 12 Nov, 7PM (local time) - 3.5ft (1.1m), 7s period, ESE swell with 102 kJ wave energy.
- Next surfable swell (1★+): None forecast at Ko Samui before Saturday 21 Nov. Conditions stay below 1★ throughout, with swell peaking at 3.5ft (1.1m), 7s on Thursday 12 Nov.
Best Forecast Surf Conditions for Ko Samui this week:
The most powerful waves expected at Ko Samui in the next 16 days are 1.1m 7s and forecast to arrive on Thursday (Nov 12) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Wednesday (Nov 11) at 4PM.
| Wave Type | Time (+07) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Thu 12th Nov) | 3.5ft (1.1m) 7s |
Table - best surf conditions forecast for Ko Samui 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)
Nearest