SnorkelForecast.com

Derawan Snorkel Report Today

Indonesia · Updated Sat 05:03 (WITA) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Sun 13:58

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

Score: 8.0/10

Best time: Sun 14:00

Main risk: Tide/Current

No useful morning window is showing yet.

Best afternoon signal: Sun 14:00 (Excellent). Peak afternoon wind is about 3.8 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:20

Water

29.9°C

Max air

28.6°C

Sky

Clear

15% cloud

Good window is available today

Next safe window: Sun 06:00–10:00 (45% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Sunday

✅ excellent conditions

Main blocker: Tide/current

Monday

✅ excellent conditions

Main blocker: Tide/current

Tuesday

✅ good conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Sun 06:00 until 10:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (47 hours)
  • Darkness (26 hours)
  • Wind (3 hours)

Jellyfish drift risk

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

Low · 34/100

Low drift risk now.

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

Sun 13:00, Mon 01:00, Mon 13:00, Tue 01:00

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

Fri 05:00 – Mon 05:00 (WITA)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.81 around Fri 13:00; 11 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 0.12m to 0.14m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.54 to 2.83m/s).

Tides range from -0.39m to 1.86m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
good 🌟 Good
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
good 🌟 Good
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
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
Fri 05:00 0.14 · good 1.00 · good 29.80 · good excellent
Fri 06:00 0.14 · good 1.15 · good 29.80 · good excellent
Fri 07:00 0.14 · good 1.66 · good 29.80 · good excellent
Fri 08:00 0.14 · good 1.83 · good 29.80 · good excellent
Fri 09:00 0.14 · good 1.98 · good 29.80 · good excellent
Fri 10:00 0.14 · good 1.82 · good 29.70 · good excellent
Fri 11:00 0.14 · good 0.85 · good 29.70 · good poor
Fri 12:00 0.14 · good 0.86 · good 29.70 · good poor
Fri 13:00 0.14 · good 0.54 · good 29.60 · good poor
Fri 14:00 0.14 · good 0.87 · good 29.60 · good poor
Fri 15:00 0.14 · good 1.36 · good 29.60 · good poor
Fri 16:00 0.14 · good 1.74 · good 29.60 · good poor
Fri 17:00 0.14 · good 1.68 · good 29.50 · good poor
Fri 18:00 0.14 · good 1.54 · good 29.50 · good poor
Fri 19:00 0.14 · good 1.72 · good 29.50 · good poor
Fri 20:00 0.12 · good 1.61 · good 29.50 · good poor
Fri 21:00 0.12 · good 1.75 · good 29.50 · good poor
Fri 22:00 0.12 · good 2.70 · good 29.50 · good poor
Fri 23:00 0.12 · good 2.66 · good 29.50 · good poor
Sat 00:00 0.12 · good 2.83 · good 29.50 · good good
Sat 01:00 0.12 · good 1.82 · good 29.60 · good good
Sat 02:00 0.12 · good 0.68 · good 29.60 · good excellent
Sat 03:00 0.12 · good 0.75 · good 29.70 · good excellent
Sat 04:00 0.12 · good 1.05 · good 29.80 · good excellent
Sat 05:00 0.12 · good 1.52 · good 29.80 · good excellent
Sat 06:00 0.16 · good 2.44 · good 30.00 · good excellent
Sat 07:00 0.16 · good 2.39 · good 30.00 · good excellent
Sat 08:00 0.14 · good 3.04 · good 29.90 · good excellent
Sat 09:00 0.14 · good 3.10 · good 29.90 · good excellent
Sat 10:00 0.14 · good 3.02 · good 29.80 · good good
Sat 11:00 0.14 · good 1.90 · good 29.80 · good poor
Sat 12:00 0.14 · good 1.91 · good 29.70 · good poor
Sat 13:00 0.14 · good 3.20 · good 29.70 · good poor
Sat 14:00 0.14 · good 3.36 · good 29.70 · good poor
Sat 15:00 0.14 · good 2.18 · good 29.60 · good poor
Sat 16:00 0.14 · good 2.30 · good 29.60 · good poor
Sat 17:00 0.14 · good 3.45 · good 29.60 · good poor
Sat 18:00 0.14 · good 2.97 · good 29.60 · good poor
Sat 19:00 0.14 · good 3.99 · good 29.60 · good poor
Sat 20:00 0.12 · good 3.91 · good 29.60 · good poor
Sat 21:00 0.12 · good 3.60 · good 29.50 · good poor
Sat 22:00 0.12 · good 3.31 · good 29.50 · good poor
Sat 23:00 0.12 · good 2.41 · good 29.60 · good poor
Sun 00:00 0.12 · good 2.49 · good 29.60 · good good
Sun 01:00 0.12 · good 2.44 · good 29.60 · good excellent
Sun 02:00 0.12 · good 1.99 · good 29.70 · good excellent
Sun 03:00 0.12 · good 1.71 · good 29.80 · good excellent
Sun 04:00 0.12 · good 1.46 · good 29.80 · good excellent
Sun 05:00 0.10 · good 0.86 · good 29.90 · good excellent
Sun 06:00 0.10 · good 1.64 · good 29.90 · good excellent
Sun 07:00 0.10 · good 3.45 · good 29.90 · good excellent
Sun 08:00 0.10 · good 3.75 · good 29.90 · good excellent
Sun 09:00 0.10 · good 2.77 · good 29.80 · good excellent
Sun 10:00 0.10 · good 2.12 · good 29.80 · good excellent
Sun 11:00 0.10 · good 1.33 · good 29.70 · good poor
Sun 12:00 0.10 · good 1.52 · good 29.70 · good poor
Sun 13:00 0.10 · good 2.80 · good 29.60 · good poor
Sun 14:00 0.10 · good 1.59 · good 29.60 · good poor
Sun 15:00 0.10 · good 1.42 · good 29.60 · good poor
Sun 16:00 0.10 · good 1.11 · good 29.60 · good poor
Sun 17:00 0.10 · good 1.90 · good 29.60 · good poor
Sun 18:00 0.10 · good 2.65 · good 29.60 · good poor
Sun 19:00 0.10 · good 2.46 · good 29.60 · good poor
Sun 20:00 0.10 · good 1.34 · good 29.50 · good poor
Sun 21:00 0.10 · good 1.12 · good 29.50 · good poor
Sun 22:00 0.10 · good 0.38 · good 29.50 · good poor
Sun 23:00 0.10 · good 3.29 · good 29.50 · good poor
Mon 00:00 0.10 · good 3.26 · good 29.50 · good good
Mon 01:00 0.10 · good 2.51 · good 29.50 · good excellent
Mon 02:00 0.10 · good 2.39 · good 29.60 · good excellent
Mon 03:00 0.10 · good 1.68 · good 29.70 · good excellent
Mon 04:00 0.10 · good 2.44 · good 29.70 · good excellent