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 Wed 16:29

Derawan has a usable snorkeling window around Wed 17:00. The main thing to watch is tide/current.

Score: 6.2/10

Best time: Wed 17:00

Main risk: Tide/Current

No useful morning window is showing yet.

Best afternoon signal: Wed 17:00 (Good). Peak afternoon wind is about 3.7 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:20

Water

29.6°C

Max air

27.8°C

Sky

Cloudy

94% cloud

Good window is available today

Next safe window: Wed 09:00–10:00 (9% 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 09:00 until 10:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (43 hours)
  • Darkness (26 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 15:00, Thu 03:00

Nearby alternatives in Indonesia

Bunaken

728 km away

✅ Good

Wakatobi

1033 km away

⚠️ Fair

Gili Trawangan

1208 km away

❌ Poor

Gili Air

1208 km away

❌ Poor

Advanced forecast data

Viewing historical data

Mon 08:00 – Thu 08:00 (WITA)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.82 around Mon 18:00; 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 0.04m to 0.12m).

Wind is at or below 5.4m/s in 22/24 sampled hours (range 0.52 to 13.7m/s).

Tides range from -0.03m to 1.28m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
good 🌟 Good
good 🌟 Good
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
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
fair ⚠️ Fair
fair ⚠️ Fair
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
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
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
Mon 08:00 0.04 · good 12.80 · high 30.00 · good good
Mon 09:00 0.04 · good 13.70 · high 29.90 · good good
Mon 10:00 0.08 · good 0.92 · good 29.80 · good excellent
Mon 11:00 0.08 · good 3.34 · good 29.80 · good poor
Mon 12:00 0.08 · good 3.90 · good 29.70 · good poor
Mon 13:00 0.10 · good 3.09 · good 29.70 · good poor
Mon 14:00 0.10 · good 3.13 · good 29.70 · good poor
Mon 15:00 0.12 · good 3.81 · good 29.60 · good poor
Mon 16:00 0.12 · good 4.67 · good 29.60 · good poor
Mon 17:00 0.12 · good 4.06 · good 29.60 · good poor
Mon 18:00 0.12 · good 3.01 · good 29.60 · good poor
Mon 19:00 0.12 · good 3.14 · good 29.60 · good poor
Mon 20:00 0.10 · good 2.07 · good 29.50 · good poor
Mon 21:00 0.10 · good 1.91 · good 29.50 · good poor
Mon 22:00 0.10 · good 1.85 · good 29.50 · good poor
Mon 23:00 0.08 · good 2.43 · good 29.50 · good poor
Tue 00:00 0.08 · good 0.76 · good 29.50 · good good
Tue 01:00 0.08 · good 2.93 · good 29.60 · good good
Tue 02:00 0.08 · good 1.65 · good 29.60 · good good
Tue 03:00 0.08 · good 0.74 · good 29.70 · good excellent
Tue 04:00 0.08 · good 0.52 · good 29.70 · good excellent
Tue 05:00 0.08 · good 0.55 · good 29.80 · good excellent
Tue 06:00 0.08 · good 1.63 · good 29.80 · good excellent
Tue 07:00 0.08 · good 1.66 · good 29.80 · good excellent
Tue 08:00 0.08 · good 1.85 · good 29.80 · good excellent
Tue 09:00 0.08 · good 1.05 · good 29.70 · good excellent
Tue 10:00 0.08 · good 0.25 · good 29.70 · good excellent
Tue 11:00 0.08 · good 1.31 · good 29.60 · good poor
Tue 12:00 0.08 · good 2.58 · good 29.60 · good poor
Tue 13:00 0.10 · good 2.64 · good 29.60 · good poor
Tue 14:00 0.12 · good 3.11 · good 29.60 · good poor
Tue 15:00 0.14 · good 3.99 · good 29.60 · good poor
Tue 16:00 0.16 · good 3.85 · good 29.60 · good poor
Tue 17:00 0.20 · good 5.95 · high 29.60 · good poor
Tue 18:00 0.22 · good 4.63 · good 29.60 · good poor
Tue 19:00 0.22 · good 3.60 · good 29.60 · good poor
Tue 20:00 0.22 · good 4.08 · good 29.50 · good poor
Tue 21:00 0.22 · good 5.24 · good 29.50 · good poor
Tue 22:00 0.22 · good 4.57 · good 29.50 · good poor
Tue 23:00 0.20 · good 5.12 · good 29.50 · good poor
Wed 00:00 0.20 · good 6.13 · high 29.50 · good fair
Wed 01:00 0.20 · good 5.86 · high 29.50 · good fair
Wed 02:00 0.20 · good 5.19 · good 29.60 · good good
Wed 03:00 0.20 · good 5.16 · good 29.60 · good good
Wed 04:00 0.20 · good 4.98 · good 29.70 · good good
Wed 05:00 0.22 · good 4.51 · good 29.70 · good good
Wed 06:00 0.22 · good 4.08 · good 29.70 · good good
Wed 07:00 0.24 · good 4.30 · good 29.70 · good good
Wed 08:00 0.26 · good 4.51 · good 29.70 · good good
Wed 09:00 0.28 · good 4.98 · good 29.70 · good good
Wed 10:00 0.32 · good 4.84 · good 29.70 · good good
Wed 11:00 0.34 · good 4.19 · good 29.60 · good poor
Wed 12:00 0.38 · high 3.38 · good 29.60 · good poor
Wed 13:00 0.38 · high 3.25 · good 29.60 · good poor
Wed 14:00 0.40 · high 5.19 · good 29.60 · good poor
Wed 15:00 0.40 · high 6.80 · high 29.60 · good poor
Wed 16:00 0.38 · high 6.64 · high 29.60 · good poor
Wed 17:00 0.36 · good 6.17 · high 29.60 · good poor
Wed 18:00 0.34 · good 5.01 · good 29.60 · good poor
Wed 19:00 0.32 · good 7.43 · high 29.60 · good poor
Wed 20:00 0.30 · good 7.27 · high 29.50 · good poor
Wed 21:00 0.28 · good 7.34 · high 29.50 · good poor
Wed 22:00 0.28 · good 6.46 · high 29.50 · good poor
Wed 23:00 0.30 · good 7.09 · high 29.50 · good poor
Thu 00:00 0.30 · good 6.74 · high 29.50 · good fair
Thu 01:00 0.30 · good 5.88 · high 29.50 · good fair
Thu 02:00 0.30 · good 4.83 · good 29.60 · good fair
Thu 03:00 0.30 · good 4.67 · good 29.60 · good fair
Thu 04:00 0.28 · good 4.41 · good 29.70 · good fair
Thu 05:00 0.28 · good 3.29 · good 29.70 · good good
Thu 06:00 0.26 · good 3.42 · good 29.70 · good good
Thu 07:00 0.32 · good 3.65 · good 29.70 · good good