Main Break
Margaret River, Australia · Reef break
Local time — · Sunrise 05:10 · Sunset 19:01
Reading the ocean.
SWELLRADAR is requesting a verified marine run for Main Break.
Spot intelligence.
Main Break at Surfers Point is a powerful reef, separate from Rivermouth, The Box and the Bombie. Left and right sections respond differently to size; it is an advanced-surfing profile rather than a general Margaret River beach recommendation.
Profile source · Margaret River Region · local breaks guideProfile sources & limits
Reviewed 18 Oct 2026 · not observation-validated
Published spot guides reviewed by SWELLRADAR, not validation against measured breaking waves. Direction axes and relative tide bands translate qualitative guidance into ranking inputs. The existing offshore-model height bands are retained, not inferred from reported wave-face heights. An offshore sample is not a takeoff or bathymetric survey. Mid-incoming is a soft overall preference; published guidance also describes surf across other tides depending on swell size.
- Margaret River Region · local breaks guide
Main Break identity, left/right reef and serious size
- Surfline · Main Break mechanics
SW–W swell, easterly offshore wind and size-dependent mid-incoming preference
Source-informed axes
Swell axis WSW · 248°
Offshore wind from E · Advanced profile
Wave
Powerful lefts and rights
Rock reef
Swell window
SW–W
1.5–4.0 m offshore ranking band
Clean wind
E · light offshore
Applied to wind scoring
Tide window
Mid–rising · size-dependent
Qualitative timing guidance
Field guide
Read the break.
Character · setup · local read
Field guide
Read the break.
Character
01Main Break is defined by powerful lefts and rights over rock reef. The shape can change with swell angle, period and the active section, so the live score should always be paired with a visual check from shore.
Best setup
02SW–W swell, e · light offshore and mid–rising · size-dependent form the profile baseline. SWELLRADAR retains 1.5–4.0 m as an offshore-model ranking band, not a measured local surf limit or a breaking-wave prediction.
Lineup read
03This is an advanced profile: positioning, entry and exit should be assessed before committing. Pay particular attention to heavy reef surf, strong currents, exposed paddle. Local signs and advice always take priority.
Know before you paddle
Live conditions and local advice always override this profile.
Optional community layerRecent surfer reportsVoluntary and potentially incomplete. Not used for the forecast or Surf Score.
The break
Reef break
Advanced. Works best with SW–W swell.
Timing
E · light offshore
Mid–rising · size-dependent. Re-check local observations and the lineup before you paddle out.
Data note
Model data unavailable
SWELLRADAR withholds numerical conditions, scores and surf windows until a quality-checked marine forecast is available.