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Updating conditions · Calibrated break

Cloud 9

Siargao, Philippines · Reef break

Local time

14:00

Sunrise

05:25

Sunset

17:29

Data source

Preview

Wave height

2.2m

Excellent · 92/100

Primary swell

1.8 m

12s · W

Wind

3 km/h

Onshore · E

Sea

18.2°C

3/2 mm suit

Tide

Rising

+0.6 m · High 16:00

Preview guidance updated now

Forecast integrity.

Every recommendation carries its source state, model coverage and sampling context.

45% model coverageNearest sea-grid sample

Model agreement

—

Comparison unavailable

Cross-model consensus

The primary forecast remains available without a cross-model signal.

ECMWFMétéo-FranceNOAA

Wave spread

—

Period spread

—

Horizon

—

Preview

Marine

Deterministic preview guidance

Preview

Wind & weather

Deterministic preview guidance

Preview

Tide context

Modelled preview phase

Checking

Ocean station

Independent observation used when a suitable station is available.

Forecast Trust 2.0

Cleaner signal needed

WAIT

Hold for a fresher or better-aligned window.

Surf 96/100Confidence 42%
Decision layer

Why this call.

A conservative read of forecast quality, independent observations, model spread and the exact break profile.

Now

Best window

14:00–17:00

Epic · 2.2–2.3 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

Cloud 9 · <1 km model sample · 45% coverage

Confidence · next 24 hours

Higher bars mean a cleaner model signal

14:00
·
18:00
·
22:00
·
02:00
·
06:00
·
10:00
·

Hourly forecast

The next 48 hours

14:00

12s

3 km/h

18:00

13s

7 km/h

22:00

13s

11 km/h

02:00

14s

15 km/h

06:00

13s

14 km/h

10:00

13s

11 km/h

14:00

13s

6 km/h

18:00

12s

3 km/h

22:00

11s

4 km/h

02:00

10s

7 km/h

06:00

10s

12 km/h

10:00

9s

15 km/h

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

High · rising

+0.6 m

relative to MSL

Motion

Fast rise

+0.42 m/h

Next turn

High · 16:00

In 2 hours

24h range

2.3 m

Mesotidal

Offshore current

0.50 km/h

Flowing SE

Spot tide profile · Calibrated

Mid to high · rising

Ideal now

The shallow reef remains consequential even inside the preferred water-level window.

Profile source · OK Surf Shop Siargao

High

28 Mon · 16:00

+1.1 m

Low

28 Mon · 22:00

-1.1 m

High

29 Tue · 04:00

+1.1 m

Low

29 Tue · 10:00

-1.1 m

Tide sync windows

Best upcoming tide phases for this break

Tide fit only · waves and wind scored separately

IdealRising

29 Tue

01:00–03:00 · +0.4 m

IdealRising

29 Tue

13:00–15:00 · +0.3 m

IdealRising

30 Wed

02:00–04:00 · +0.1 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.

Today

2.3 m

12s · W

Excellent · 92

29 Tue

2.0 m

12s · W

Excellent · 89

30 Wed

2.3 m

11s · W

Good · 82

The break

Reef break

Advanced. Works best with E-NE swell.

Timing

Dawn patrol

Usually the cleanest wind window. Re-check local observations before you paddle out.

Data note

Fallback preview

Wave guidance, tide phase and offshore currents are modelled unless a nearby buoy observation is shown.