Balangan Beach
South-Eastern Asia, Indonesia · Reef break
Local time
13:00
Data source
Preview
Wave height
2.0m
Excellent · 96/100Primary swell
1.7 m
12s · W
Wind
3 km/h
Cross-shore · E
Sea
18.2°C
3/2 mm suit
Tide
Falling
-0.9 m · Low 14:00
Forecast integrity.
Every recommendation carries its source state, model coverage and sampling context.
Model agreement
—
Comparison unavailable
Cross-model consensus
The primary forecast remains available without a cross-model signal.
Wave spread
—
Period spread
—
Horizon
—
Marine
Deterministic preview guidance
Wind & weather
Deterministic preview guidance
Tide context
Modelled preview phase
Nearby buoy
Independent observation used when a suitable station is available.
Cleaner signal needed
WAIT
Hold for a fresher or better-aligned window.
Why this call.
A conservative read of forecast quality, independent observations, model spread and the exact break profile.
Best window
17:00–20:00
Epic · 1.4–1.5 m · good tide fit
Model agreement
Comparison pending
A single-model forecast is available without a cross-check.
Observed ocean
Checking nearby stations
Looking for an independent real-ocean signal.
Break profile
Spot calibrated
Balangan Beach · <1 km model sample · 45% coverage
Higher bars mean a cleaner model signal
Spot intelligence.
Balangan becomes faster and more consequential as size rises; fuller water gives more margin over the inside reef.
Profile source · Surfline Balangan guideCalibrated geometry
Faces SW · 215°
Clean offshore axis NE · Intermediate profile
Wave
Long left-hand reef
Coral reef
Swell window
S–SW
0.8–2.5 m profile range
Clean wind
E–SE trade wind
Applied to wind scoring
Tide window
Mid to high
Profile-aware timing
Know before you paddle
Live conditions and local advice always override this profile.
Hourly forecast
The next 48 hours
Tide intelligence
Read the water.
Tide phase, speed and range interpreted through this break's own profile, with offshore-current context and buoy verification.
Water level now
Low · falling
-0.9 m
relative to MSL
Steady fall
-0.20 m/h
Low · 14:00
In 1 hour
2.3 m
Mesotidal
0.47 km/h
Flowing W
Spot tide profile · Adaptive
Mid to high
A fuller-water baseline adds margin over the inside reef; the left becomes faster and more demanding with size.
Profile source · Surfline Balangan guideLow
28 Mon · 14:00
-1.1 m
High
28 Mon · 20:00
+1.1 m
Low
29 Tue · 02:00
-1.1 m
High
29 Tue · 09:00
+1.1 m
Tide sync windows
Best upcoming tide phases for this break
Tide fit only · waves and wind scored separately
28 Mon
22:00–00:00 · +0.2 m
29 Tue
05:00–07:00 · +0.3 m
29 Tue
10:00–12:00 · +0.4 m
Tides and currents use the Météo-France global ocean model via Open-Meteo at roughly 8 km resolution. Sea level includes tide and atmospheric effects and is referenced to global mean sea level, not a local chart datum. Coastal accuracy is limited; never use this for navigation.
7-day outlook
Pick your day.
Model: SWELLRADAR preview model
Today
2.2 m
12s · W
Excellent · 96
29 Tue
2.1 m
12s · W
Excellent · 96
30 Wed
2.2 m
11s · W
Excellent · 91
Nearby breaks
Keep exploring.
The break
Reef break
Intermediate. Works best with S–SW swell.
Timing
E–SE trade wind
Mid to high. Re-check local observations and the lineup before you paddle out.
Data note
Fallback preview
Wave guidance, tide phase and offshore currents are modelled unless a nearby buoy observation is shown.