Can you snorkel in Derawan today?

Yes. The next good snorkeling window in Derawan starts Sun 06:00 and lasts until 10:00. Around 45% of the next 72 hours are suitable.

What is the best time of day to snorkel in Derawan?

Snorkel during daylight, ideally in the morning before the wind picks up, and around high slack tide when water is clearest and currents are weakest. SnorkelForecast scores every daylight hour in Derawan so you can pick the calmest window.

What is the best tide for snorkeling?

High slack tide — within about an hour of the high-tide peak when currents are weakest — is the safest, clearest window. Strong low tides, strong tidal flow near channels or headlands, and large tidal-range days reduce score.

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 13:59

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 live forecast

Sun 05:00 – Wed 05:00 (WITA)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.8 around Mon 11:00; 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 0.1m to 0.12m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.38 to 3.75m/s).

Tides range from -0.2m to 1.45m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview

Sun 06:00 excellent ✅ Excellent

Sun 07:00 excellent ✅ Excellent

Sun 08:00 excellent ✅ Excellent

Sun 09:00 excellent ✅ Excellent

Sun 10:00 excellent ✅ Excellent

Sun 11:00 poor ❌ Limited

Sun 12:00 poor ❌ Limited

Sun 13:00 poor ❌ Limited

Sun 14:00 poor ❌ Limited

Sun 15:00 poor ❌ Limited

Sun 16:00 poor ❌ Limited

Sun 17:00 poor ❌ Limited

Sun 18:00 poor ❌ Limited

Sun 19:00 poor ❌ Limited

Sun 20:00 poor ❌ Limited

Sun 21:00 poor ❌ Limited

Sun 22:00 poor ❌ Limited

Sun 23:00 poor ❌ Limited

Mon 00:00 good 🌟 Good

Mon 01:00 excellent ✅ Excellent

Mon 02:00 excellent ✅ Excellent

Mon 03:00 excellent ✅ Excellent

Mon 04:00 excellent ✅ Excellent

Mon 05:00 excellent ✅ Excellent

Mon 06:00 excellent ✅ Excellent

Mon 07:00 excellent ✅ Excellent

Mon 08:00 excellent ✅ Excellent

Mon 09:00 excellent ✅ Excellent

Mon 10:00 excellent ✅ Excellent

Mon 11:00 poor ❌ Limited

Mon 12:00 poor ❌ Limited

Mon 13:00 poor ❌ Limited

Mon 14:00 poor ❌ Limited

Mon 15:00 poor ❌ Limited

Mon 16:00 poor ❌ Limited

Mon 17:00 poor ❌ Limited

Mon 18:00 poor ❌ Limited

Mon 19:00 poor ❌ Limited

Mon 20:00 poor ❌ Limited

Mon 21:00 poor ❌ Limited

Mon 22:00 poor ❌ Limited

Mon 23:00 poor ❌ Limited

Tue 00:00 good 🌟 Good

Tue 01:00 good 🌟 Good

Tue 02:00 good 🌟 Good

Tue 03:00 good 🌟 Good

Tue 04:00 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
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
Mon 05:00	0.12 · good	3.13 · good	29.80 · good	excellent
Mon 06:00	0.12 · good	2.31 · good	29.80 · good	excellent
Mon 07:00	0.12 · good	2.37 · good	29.80 · good	excellent
Mon 08:00	0.12 · good	2.44 · good	29.80 · good	excellent
Mon 09:00	0.12 · good	2.15 · good	29.70 · good	excellent
Mon 10:00	0.12 · good	0.51 · good	29.70 · good	excellent
Mon 11:00	0.12 · good	1.91 · good	29.60 · good	poor
Mon 12:00	0.12 · good	1.66 · good	29.60 · good	poor
Mon 13:00	0.12 · good	5.88 · high	29.50 · good	poor
Mon 14:00	0.12 · good	5.61 · high	29.50 · good	poor
Mon 15:00	0.12 · good	4.51 · good	29.50 · good	poor
Mon 16:00	0.12 · good	4.16 · good	29.50 · good	poor
Mon 17:00	0.12 · good	4.83 · good	29.40 · good	poor
Mon 18:00	0.12 · good	4.36 · good	29.40 · good	poor
Mon 19:00	0.12 · good	4.35 · good	29.40 · good	poor
Mon 20:00	0.12 · good	4.15 · good	29.40 · good	poor
Mon 21:00	0.12 · good	6.85 · high	29.40 · good	poor
Mon 22:00	0.12 · good	4.15 · good	29.40 · good	poor
Mon 23:00	0.14 · good	4.11 · good	29.40 · good	poor
Tue 00:00	0.14 · good	3.62 · good	29.40 · good	good
Tue 01:00	0.14 · good	3.12 · good	29.40 · good	good
Tue 02:00	0.14 · good	2.83 · good	29.50 · good	good
Tue 03:00	0.14 · good	2.42 · good	29.60 · good	good
Tue 04:00	0.14 · good	1.98 · good	29.60 · good	good