SnorkelForecast.com

Derawan Snorkel Report Today

Indonesia · Updated Tue 04:15 (WITA) · Source: Snapshot

The skinny

Go in the best window Report Wed 06:43

Derawan has a usable snorkeling window around Wed 08:00. The main thing to watch is tide/current.

Score: 7.2/10

Best time: Wed 08:00

Main risk: Tide/Current

Best morning signal: Wed 09:00 (Good).

Best afternoon signal: Wed 14:00 (Good). Peak afternoon wind is about 3.7 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:20

Water

29.3°C

Max air

28.1°C

Sky

Cloudy

100% cloud

Good window is available today

Next safe window: Wed 00:00–10:00 (25% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ good conditions

Main blocker: Tide/current

Thursday

✅ good conditions

Main blocker: Tide/current

Friday

⚠️ fair conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Wed 00:00 until 10:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (53 hours)
  • Darkness (27 hours)
  • Wind (17 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Wed 18:00.

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

Wed 02:00, Wed 15:00, Thu 03:00

Nearby alternatives in Indonesia

Bunaken

728 km away

✅ Good

Wakatobi

1033 km away

❌ Poor

Gili Trawangan

1208 km away

❌ Poor

Gili Air

1208 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sat 22:00 – Tue 22:00 (WITA)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.69 around Sun 15:00; 10 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.

17/24 sampled hours stay at or below 0.36m (range 0.22m to 0.5m).

Wind is at or below 5.4m/s in 11/24 sampled hours (range 3.05 to 8.59m/s).

Tides range from -0.09m to 1.74m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
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
good 🌟 Good
good 🌟 Good
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
good 🌟 Good
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
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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
Sat 22:00 0.48 · high 8.05 · high 29.40 · good poor
Sat 23:00 0.48 · high 8.59 · high 29.40 · good poor
Sun 00:00 0.50 · high 8.14 · high 29.40 · good poor
Sun 01:00 0.48 · high 7.85 · high 29.40 · good fair
Sun 02:00 0.44 · high 7.30 · high 29.50 · good fair
Sun 03:00 0.42 · high 7.37 · high 29.50 · good fair
Sun 04:00 0.38 · high 6.49 · high 29.60 · good good
Sun 05:00 0.34 · good 4.62 · good 29.60 · good good
Sun 06:00 0.30 · good 3.89 · good 29.70 · good good
Sun 07:00 0.30 · good 4.56 · good 29.70 · good good
Sun 08:00 0.28 · good 3.62 · good 29.80 · good good
Sun 09:00 0.26 · good 5.51 · high 29.80 · good good
Sun 10:00 0.28 · good 4.70 · good 29.80 · good fair
Sun 11:00 0.28 · good 4.21 · good 29.80 · good poor
Sun 12:00 0.30 · good 5.15 · good 29.70 · good poor
Sun 13:00 0.32 · good 5.70 · high 29.70 · good poor
Sun 14:00 0.34 · good 6.77 · high 29.70 · good poor
Sun 15:00 0.36 · good 7.39 · high 29.60 · good poor
Sun 16:00 0.34 · good 6.51 · high 29.60 · good poor
Sun 17:00 0.34 · good 4.75 · good 29.60 · good poor
Sun 18:00 0.32 · good 6.51 · high 29.50 · good poor
Sun 19:00 0.28 · good 3.76 · good 29.50 · good poor
Sun 20:00 0.26 · good 3.05 · good 29.40 · good poor
Sun 21:00 0.22 · good 3.75 · good 29.40 · good poor
Sun 22:00 0.22 · good 2.72 · good 29.40 · good poor
Sun 23:00 0.20 · good 2.96 · good 29.40 · good poor
Mon 00:00 0.20 · good 3.21 · good 29.40 · good good
Mon 01:00 0.20 · good 2.67 · good 29.40 · good good
Mon 02:00 0.18 · good 2.81 · good 29.50 · good good
Mon 03:00 0.18 · good 2.35 · good 29.60 · good good
Mon 04:00 0.18 · good 1.92 · good 29.70 · good excellent
Mon 05:00 0.16 · good 1.63 · good 29.80 · good good
Mon 06:00 0.16 · good 2.22 · good 29.90 · good good
Mon 07:00 0.16 · good 2.97 · good 29.90 · good good
Mon 08:00 0.16 · good 4.53 · good 29.80 · good excellent
Mon 09:00 0.16 · good 6.19 · high 29.80 · good excellent
Mon 10:00 0.18 · good 5.13 · good 29.70 · good excellent
Mon 11:00 0.18 · good 4.83 · good 29.60 · good poor
Mon 12:00 0.20 · good 3.95 · good 29.60 · good poor
Mon 13:00 0.20 · good 5.12 · good 29.50 · good poor
Mon 14:00 0.20 · good 5.06 · good 29.50 · good poor
Mon 15:00 0.20 · good 5.37 · good 29.50 · good poor
Mon 16:00 0.20 · good 4.84 · good 29.40 · good poor
Mon 17:00 0.22 · good 4.73 · good 29.40 · good poor
Mon 18:00 0.22 · good 3.82 · good 29.40 · good poor
Mon 19:00 0.22 · good 3.91 · good 29.30 · good poor
Mon 20:00 0.22 · good 3.15 · good 29.30 · good poor
Mon 21:00 0.22 · good 3.86 · good 29.30 · good poor
Mon 22:00 0.20 · good 4.56 · good 29.30 · good poor
Mon 23:00 0.20 · good 4.89 · good 29.30 · good poor
Tue 00:00 0.18 · good 4.92 · good 29.30 · good good
Tue 01:00 0.16 · good 4.05 · good 29.30 · good good
Tue 02:00 0.16 · good 3.71 · good 29.40 · good good
Tue 03:00 0.14 · good 3.58 · good 29.60 · good good
Tue 04:00 0.14 · good 3.05 · good 29.70 · good good
Tue 05:00 0.14 · good 2.00 · good 29.80 · good good
Tue 06:00 0.14 · good 1.45 · good 29.80 · good good
Tue 07:00 0.14 · good 2.71 · good 29.80 · good good
Tue 08:00 0.14 · good 4.20 · good 29.80 · good good
Tue 09:00 0.14 · good 4.63 · good 29.80 · good good
Tue 10:00 0.14 · good 4.75 · good 29.70 · good good
Tue 11:00 0.14 · good 4.48 · good 29.70 · good poor
Tue 12:00 0.14 · good 4.25 · good 29.60 · good poor
Tue 13:00 0.14 · good 3.43 · good 29.60 · good poor
Tue 14:00 0.12 · good 3.46 · good 29.50 · good poor
Tue 15:00 0.12 · good 4.25 · good 29.50 · good poor
Tue 16:00 0.12 · good 0.27 · good 29.40 · good poor
Tue 17:00 0.12 · good 2.22 · good 29.40 · good poor
Tue 18:00 0.12 · good 1.17 · good 29.40 · good poor
Tue 19:00 0.12 · good 1.92 · good 29.30 · good poor
Tue 20:00 0.12 · good 1.83 · good 29.30 · good poor
Tue 21:00 0.12 · good 1.22 · good 29.30 · good poor