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 Tue 05:50

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

Score: 6.9/10

Best time: Tue 08:00

Main risk: Tide/Current

Best morning signal: Tue 11:00 (Good).

Best afternoon signal: Tue 12:00 (Good). Peak afternoon wind is about 2.0 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:20

Water

29.4°C

Max air

27.6°C

Sky

Cloudy

99% cloud

Good window is available today

Next safe window: Tue 00:00–04:00 (71% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Tuesday

✅ good conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Tue 00:00 until 04:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (7 hours)
  • Darkness (2 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

Tue 01:00

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

Wed 21:00 – Sat 21:00 (WITA)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.73 around Thu 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 0.14m to 0.16m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.86 to 4.15m/s).

Tides range from -0.47m to 2.02m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
excellent ✅ Excellent
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
excellent ✅ Excellent
excellent ✅ Excellent
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
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
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
Wed 21:00 0.16 · good 2.38 · good 29.20 · good poor
Wed 22:00 0.16 · good 2.93 · good 29.20 · good poor
Wed 23:00 0.16 · good 2.75 · good 29.20 · good poor
Thu 00:00 0.16 · good 2.30 · good 29.20 · good good
Thu 01:00 0.16 · good 3.01 · good 29.30 · good good
Thu 02:00 0.16 · good 2.74 · good 29.40 · good good
Thu 03:00 0.16 · good 2.06 · good 29.50 · good good
Thu 04:00 0.16 · good 1.67 · good 29.60 · good good
Thu 05:00 0.16 · good 1.15 · good 29.70 · good excellent
Thu 06:00 0.16 · good 1.10 · good 29.70 · good good
Thu 07:00 0.16 · good 2.91 · good 29.70 · good good
Thu 08:00 0.14 · good 3.50 · good 29.70 · good good
Thu 09:00 0.14 · good 3.61 · good 29.70 · good good
Thu 10:00 0.14 · good 3.70 · good 29.60 · good good
Thu 11:00 0.14 · good 2.58 · good 29.60 · good poor
Thu 12:00 0.14 · good 1.25 · good 29.60 · good poor
Thu 13:00 0.14 · good 3.33 · good 29.60 · good poor
Thu 14:00 0.14 · good 2.62 · good 29.50 · good poor
Thu 15:00 0.14 · good 0.86 · good 29.50 · good poor
Thu 16:00 0.14 · good 1.96 · good 29.50 · good poor
Thu 17:00 0.14 · good 1.28 · good 29.50 · good poor
Thu 18:00 0.14 · good 2.05 · good 29.50 · good poor
Thu 19:00 0.14 · good 4.15 · good 29.50 · good poor
Thu 20:00 0.14 · good 3.65 · good 29.40 · good poor
Thu 21:00 0.14 · good 2.29 · good 29.40 · good poor
Thu 22:00 0.14 · good 1.87 · good 29.40 · good poor
Thu 23:00 0.14 · good 2.10 · good 29.40 · good poor
Fri 00:00 0.14 · good 1.41 · good 29.40 · good excellent
Fri 01:00 0.14 · good 1.20 · good 29.50 · good excellent
Fri 02:00 0.14 · good 1.30 · good 29.50 · good good
Fri 03:00 0.14 · good 1.27 · good 29.60 · good excellent
Fri 04:00 0.14 · good 0.43 · good 29.70 · good excellent
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