SnorkelForecast.com

Derawan Snorkel Report Today

Indonesia · Updated Tue 04:15 (WITA) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Thu 10:48

Derawan has a usable snorkeling window around Thu 14:00. The main thing to watch is tide/current.

Score: 5.6/10

Best time: Thu 14:00

Main risk: Tide/Current

Best morning signal: Thu 11:00 (Fair).

Best afternoon signal: Thu 14:00 (Good). Peak afternoon wind is about 7.2 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:20

Water

29.5°C

Max air

29.7°C

Sky

Cloudy

95% cloud

Good window is available today

Next safe window: Thu 06:00–07:00 (8% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Thursday

✅ good conditions

Main blocker: Tide/current

Friday

⚠️ fair conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Thu 06:00 until 07:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (25 hours)
  • Wind (13 hours)
  • Darkness (13 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low peak drift risk around Thu 21:00.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Upcoming high tides

Thu 03:00

Nearby alternatives in Indonesia

Bunaken

728 km away

✅ Good

Wakatobi

1033 km away

❌ Poor

Gili Trawangan

1208 km away

⚠️ Fair

Gili Air

1208 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Tue 02:00 – Fri 02:00 (WITA)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.3 around Wed 08:00; 0 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

24/24 sampled hours stay at or below 0.36m (range 0.1m to 0.22m).

Wind is at or below 5.4m/s in 3/24 sampled hours (range 2.3 to 21.2m/s).

Tides range from 0.2m to 1.18m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

  • Wave height (35%): best below 0.36m, then decreases as it rises.
  • Wind speed (25%): best below 5.4m/s, lower is better.
  • Sea surface temperature (15%): best within 20.6°C to 30.4°C.
  • Tide and currents (15%): best around slack/high-tide windows.
  • Daylight (10%): visibility and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Tue 02:00 0.16 · good 15.20 · high 29.90 · good poor
Tue 03:00 0.20 · good 15.70 · high 29.90 · good poor
Tue 04:00 0.20 · good 21.20 · high 30.00 · good poor
Tue 05:00 0.22 · good 18.80 · high 30.00 · good poor
Tue 06:00 0.22 · good 13.40 · high 30.10 · good poor
Tue 07:00 0.20 · good 11.70 · high 30.10 · good poor
Tue 08:00 0.18 · good 13.30 · high 30.10 · good poor
Tue 09:00 0.16 · good 15.10 · high 30.10 · good poor
Tue 10:00 0.14 · good 13.20 · high 30.10 · good poor
Tue 11:00 0.14 · good 10.40 · high 30.00 · good poor
Tue 12:00 0.12 · good 10.80 · high 30.00 · good poor
Tue 13:00 0.12 · good 12.40 · high 30.00 · good poor
Tue 14:00 0.10 · good 11.70 · high 30.00 · good poor
Tue 15:00 0.10 · good 9.50 · high 30.00 · good poor
Tue 16:00 0.10 · good 9.90 · high 29.90 · good poor
Tue 17:00 0.10 · good 2.30 · good 29.90 · good poor
Tue 18:00 0.10 · good 6.40 · high 29.90 · good poor
Tue 19:00 0.10 · good 5.20 · good 29.90 · good poor
Tue 20:00 0.10 · good 5.20 · good 29.80 · good poor
Tue 21:00 0.10 · good 6.90 · high 29.80 · good poor
Tue 22:00 0.10 · good 6.00 · high 29.80 · good poor
Tue 23:00 0.10 · good 7.40 · high 29.80 · good poor
Wed 00:00 0.10 · good 7.10 · high 29.80 · good poor
Wed 01:00 0.10 · good 10.10 · high 29.90 · good poor
Wed 02:00 0.10 · good 10.20 · high 30.00 · good poor
Wed 03:00 0.10 · good 11.40 · high 30.10 · good poor
Wed 04:00 0.10 · good 9.90 · high 30.20 · good poor
Wed 05:00 0.10 · good 6.70 · high 30.30 · good poor
Wed 06:00 0.10 · good 7.70 · high 30.30 · good poor
Wed 07:00 0.10 · good 11.20 · high 30.30 · good poor
Wed 08:00 0.10 · good 14.20 · high 30.30 · good poor
Wed 09:00 0.10 · good 14.50 · high 30.30 · good poor
Wed 10:00 0.10 · good 16.60 · high 30.20 · good poor
Wed 11:00 0.08 · good 13.30 · high 30.20 · good poor
Wed 12:00 0.08 · good 11.20 · high 30.10 · good poor
Wed 13:00 0.08 · good 10.00 · high 30.10 · good poor
Wed 14:00 0.18 · good 14.20 · high 30.00 · good poor
Wed 15:00 0.20 · good 16.00 · high 30.00 · good poor
Wed 16:00 0.20 · good 16.20 · high 30.00 · good poor
Wed 17:00 0.20 · good 13.90 · high 29.90 · good poor
Wed 18:00 0.20 · good 6.80 · high 29.90 · good poor
Wed 19:00 0.20 · good 14.90 · high 29.90 · good poor
Wed 20:00 0.18 · good 13.10 · high 29.90 · good poor
Wed 21:00 0.18 · good 11.70 · high 29.90 · good poor
Wed 22:00 0.16 · good 5.60 · high 29.80 · good poor
Wed 23:00 0.16 · good 5.90 · high 29.90 · good poor
Thu 00:00 0.14 · good 5.60 · high 29.90 · good poor
Thu 01:00 0.14 · good 8.30 · high 29.90 · good poor
Thu 02:00 0.14 · good 7.90 · high 30.00 · good poor
Thu 03:00 0.14 · good 6.80 · high 30.10 · good poor
Thu 04:00 0.14 · good 5.70 · high 30.20 · good poor
Thu 05:00 0.12 · good 4.70 · good 30.30 · good fair
Thu 06:00 0.12 · good 5.80 · high 30.40 · good poor
Thu 07:00 0.12 · good 6.80 · high 30.40 · good poor
Thu 08:00 0.10 · good 9.20 · high 30.40 · good poor
Thu 09:00 0.10 · good 10.80 · high 30.30 · good poor
Thu 10:00 0.10 · good 10.10 · high 30.30 · good poor
Thu 11:00 0.10 · good 9.00 · high 30.20 · good poor
Thu 12:00 0.10 · good 8.30 · high 30.20 · good poor
Thu 13:00 0.10 · good 7.90 · high 30.10 · good poor
Thu 14:00 0.10 · good 5.00 · good 30.10 · good poor
Thu 15:00 0.10 · good 2.80 · good 30.10 · good poor
Thu 16:00 0.10 · good 15.00 · high 30.00 · good poor
Thu 17:00 0.10 · good 1.70 · good 30.00 · good poor
Thu 18:00 0.10 · good 2.90 · good 30.00 · good poor
Thu 19:00 0.10 · good 2.20 · good 29.90 · good poor
Thu 20:00 0.10 · good 6.80 · high 29.90 · good poor
Thu 21:00 0.10 · good 10.60 · high 29.90 · good poor
Thu 22:00 0.10 · good 9.70 · high 29.90 · good poor
Thu 23:00 0.10 · good 9.00 · high 29.90 · good poor
Fri 00:00 0.10 · good 8.30 · high 29.90 · good poor
Fri 01:00 0.10 · good 9.90 · high 29.90 · good poor