SnorkelForecast.com

Derawan Snorkel Report Today

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

The skinny

Go in the best window Report Wed 11:27

Derawan has a usable snorkeling window around Wed 12:00. The main thing to watch is tide/current.

Score: 7.2/10

Best time: Wed 12:00

Main risk: Tide/Current

No useful morning window is showing yet.

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

29.5°C

Max air

28.1°C

Sky

Cloudy

97% cloud

Good window is available today

Next safe window: Wed 04:00–10:00 (19% 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 04:00 until 10:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (48 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

⚠️ Fair

Gili Air

1208 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Thu 03:00 – Sun 03:00 (WITA)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.7 around Thu 14:00; 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.

6/24 sampled hours stay at or below 0.36m (range 0.26m to 0.58m).

Wind is at or below 5.4m/s in 5/24 sampled hours (range 3.29 to 9.85m/s).

Tides range from 0.21m to 1.32m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
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
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
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
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
Thu 08:00 0.36 · good 6.21 · high 29.70 · good fair
Thu 09:00 0.38 · high 6.51 · high 29.60 · good fair
Thu 10:00 0.44 · high 6.30 · high 29.60 · good fair
Thu 11:00 0.50 · high 7.35 · high 29.60 · good poor
Thu 12:00 0.56 · high 8.27 · high 29.50 · good poor
Thu 13:00 0.56 · high 7.84 · high 29.50 · good poor
Thu 14:00 0.58 · high 7.77 · high 29.50 · good poor
Thu 15:00 0.58 · high 7.64 · high 29.50 · good poor
Thu 16:00 0.54 · high 6.61 · high 29.50 · good poor
Thu 17:00 0.48 · high 6.62 · high 29.40 · good poor
Thu 18:00 0.44 · high 6.59 · high 29.40 · good poor
Thu 19:00 0.44 · high 6.91 · high 29.40 · good poor
Thu 20:00 0.42 · high 6.69 · high 29.40 · good poor
Thu 21:00 0.42 · high 7.37 · high 29.40 · good poor
Thu 22:00 0.46 · high 9.19 · high 29.40 · good poor
Thu 23:00 0.48 · high 9.85 · high 29.40 · good poor
Fri 00:00 0.52 · high 9.30 · high 29.40 · good fair
Fri 01:00 0.50 · high 8.14 · high 29.40 · good fair
Fri 02:00 0.50 · high 7.18 · high 29.40 · good fair
Fri 03:00 0.48 · high 6.80 · high 29.50 · good fair
Fri 04:00 0.48 · high 6.79 · high 29.50 · good fair
Fri 05:00 0.46 · high 6.20 · high 29.60 · good fair
Fri 06:00 0.46 · high 6.95 · high 29.60 · good fair
Fri 07:00 0.48 · high 7.66 · high 29.60 · good fair
Fri 08:00 0.48 · high 7.42 · high 29.60 · good fair
Fri 09:00 0.50 · high 7.08 · high 29.60 · good fair
Fri 10:00 0.48 · high 6.62 · high 29.60 · good fair
Fri 11:00 0.48 · high 6.81 · high 29.50 · good poor
Fri 12:00 0.46 · high 7.71 · high 29.50 · good poor
Fri 13:00 0.44 · high 7.22 · high 29.50 · good poor
Fri 14:00 0.44 · high 9.01 · high 29.50 · good poor
Fri 15:00 0.42 · high 7.68 · high 29.50 · good poor
Fri 16:00 0.44 · high 5.55 · high 29.50 · good poor
Fri 17:00 0.44 · high 5.62 · high 29.40 · good poor
Fri 18:00 0.46 · high 6.20 · high 29.40 · good poor
Fri 19:00 0.46 · high 7.23 · high 29.40 · good poor
Fri 20:00 0.46 · high 6.66 · high 29.40 · good poor
Fri 21:00 0.46 · high 6.20 · high 29.40 · good poor
Fri 22:00 0.46 · high 6.18 · high 29.40 · good poor
Fri 23:00 0.46 · high 7.01 · high 29.40 · good poor
Sat 00:00 0.46 · high 7.99 · high 29.40 · good fair
Sat 01:00 0.44 · high 8.74 · high 29.40 · good fair
Sat 02:00 0.44 · high 8.23 · high 29.40 · good fair
Sat 03:00 0.42 · high 7.07 · high 29.50 · good fair
Sat 04:00 0.38 · high 6.28 · high 29.60 · good fair
Sat 05:00 0.34 · good 4.71 · good 29.60 · good good
Sat 06:00 0.30 · good 3.95 · good 29.60 · good good
Sat 07:00 0.28 · good 3.78 · good 29.60 · good good
Sat 08:00 0.28 · good 4.58 · good 29.60 · good good
Sat 09:00 0.26 · good 6.40 · high 29.60 · good fair
Sat 10:00 0.32 · good 6.66 · high 29.60 · good fair
Sat 11:00 0.36 · good 7.11 · high 29.50 · good poor
Sat 12:00 0.42 · high 7.05 · high 29.50 · good poor
Sat 13:00 0.44 · high 6.71 · high 29.50 · good poor
Sat 14:00 0.46 · high 7.46 · high 29.50 · good poor
Sat 15:00 0.48 · high 6.74 · high 29.50 · good poor
Sat 16:00 0.46 · high 5.76 · high 29.50 · good poor
Sat 17:00 0.44 · high 4.55 · good 29.40 · good poor
Sat 18:00 0.42 · high 4.14 · good 29.40 · good poor
Sat 19:00 0.44 · high 3.58 · good 29.40 · good poor
Sat 20:00 0.44 · high 4.06 · good 29.40 · good poor
Sat 21:00 0.46 · high 5.69 · high 29.40 · good poor
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