Can you snorkel in Derawan today?

Yes. The next good snorkeling window in Derawan starts Thu 06:00 and lasts until 07:00. Around 7% 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 Tue 04:15 (WITA) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Thu 08:37

Derawan has a usable snorkeling window around Thu 14:00. The main thing to watch is tide/current.

Score: 5.6/10

Best time: Thu 14:00

Main risk: Tide/Current

Best morning signal: Thu 09:00 (Fair).

Best afternoon signal: Thu 14:00 (Good). Peak afternoon wind is about 7.2 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:20

Water

29.4°C

Max air

29.7°C

Sky

Cloudy

98% cloud

Good window is available today

Next safe window: Thu 06:00–07:00 (7% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Thursday

✅ good conditions

Main blocker: Tide/current

Friday

⚠️ fair conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Thu 06:00 until 07:00.

Why this verdict

Main blockers across the next 72 hours:

Tide/current (27 hours)
Wind (15 hours)
Darkness (13 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Thu 21:00.

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

Thu 03:00

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 historical data

Wed 00:00 – Sat 00:00 (WITA)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.33 around Wed 13:00; 0 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 0.08m to 0.2m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 5.6 to 16.6m/s).

Tides range from 0.27m to 1.26m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview

Wed 00:00 poor ❌ Limited

Wed 01:00 poor ❌ Limited

Wed 02:00 poor ❌ Limited

Wed 03:00 poor ❌ Limited

Wed 04:00 poor ❌ Limited

Wed 05:00 poor ❌ Limited

Wed 06:00 poor ❌ Limited

Wed 07:00 poor ❌ Limited

Wed 08:00 poor ❌ Limited

Wed 09:00 poor ❌ Limited

Wed 10:00 poor ❌ Limited

Wed 11:00 poor ❌ Limited

Wed 12:00 poor ❌ Limited

Wed 13:00 poor ❌ Limited

Wed 14:00 poor ❌ Limited

Wed 15:00 poor ❌ Limited

Wed 16:00 poor ❌ Limited

Wed 17:00 poor ❌ Limited

Wed 18:00 poor ❌ Limited

Wed 19:00 poor ❌ Limited

Wed 20:00 poor ❌ Limited

Wed 21:00 poor ❌ Limited

Wed 22:00 poor ❌ Limited

Wed 23:00 poor ❌ Limited

Thu 00:00 poor ❌ Limited

Thu 01:00 poor ❌ Limited

Thu 02:00 poor ❌ Limited

Thu 03:00 poor ❌ Limited

Thu 04:00 poor ❌ Limited

Thu 05:00 fair ⚠️ Fair

Thu 06:00 poor ❌ Limited

Thu 07:00 poor ❌ Limited

Thu 08:00 poor ❌ Limited

Thu 09:00 poor ❌ Limited

Thu 10:00 poor ❌ Limited

Thu 11:00 poor ❌ Limited

Thu 12:00 poor ❌ Limited

Thu 13:00 poor ❌ Limited

Thu 14:00 poor ❌ Limited

Thu 15:00 poor ❌ Limited

Thu 16:00 poor ❌ Limited

Thu 17:00 poor ❌ Limited

Thu 18:00 poor ❌ Limited

Thu 19:00 poor ❌ Limited

Thu 20:00 poor ❌ Limited

Thu 21:00 poor ❌ Limited

Thu 22:00 poor ❌ Limited

Thu 23:00 poor ❌ Limited

Fri 00:00 poor ❌ Limited

Fri 01:00 poor ❌ Limited

Fri 02:00 poor ❌ Limited

Fri 03:00 fair ⚠️ Fair

Fri 04:00 fair ⚠️ Fair

Fri 05:00 fair ⚠️ Fair

Fri 06:00 poor ❌ Limited

Fri 07:00 poor ❌ Limited

Fri 08:00 poor ❌ Limited

Fri 09:00 poor ❌ Limited

Fri 10:00 poor ❌ Limited

Fri 11:00 poor ❌ Limited

Fri 12:00 poor ❌ Limited

Fri 13:00 poor ❌ Limited

Fri 14:00 poor ❌ Limited

Fri 15:00 poor ❌ Limited

Fri 16:00 poor ❌ Limited

Fri 17:00 poor ❌ Limited

Fri 18:00 poor ❌ Limited

Fri 19:00 poor ❌ Limited

Fri 20:00 poor ❌ Limited

Fri 21:00 poor ❌ Limited

Fri 22:00 poor ❌ Limited

Fri 23:00 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 00:00	0.10 · good	7.10 · high	29.80 · good	poor
Wed 01:00	0.10 · good	10.10 · high	29.90 · good	poor
Wed 02:00	0.10 · good	10.20 · high	30.00 · good	poor
Wed 03:00	0.10 · good	11.40 · high	30.10 · good	poor
Wed 04:00	0.10 · good	9.90 · high	30.20 · good	poor
Wed 05:00	0.10 · good	6.70 · high	30.30 · good	poor
Wed 06:00	0.10 · good	7.70 · high	30.30 · good	poor
Wed 07:00	0.10 · good	11.20 · high	30.30 · good	poor
Wed 08:00	0.10 · good	14.20 · high	30.30 · good	poor
Wed 09:00	0.10 · good	14.50 · high	30.30 · good	poor
Wed 10:00	0.10 · good	16.60 · high	30.20 · good	poor
Wed 11:00	0.08 · good	13.30 · high	30.20 · good	poor
Wed 12:00	0.08 · good	11.20 · high	30.10 · good	poor
Wed 13:00	0.08 · good	10.00 · high	30.10 · good	poor
Wed 14:00	0.18 · good	14.20 · high	30.00 · good	poor
Wed 15:00	0.20 · good	16.00 · high	30.00 · good	poor
Wed 16:00	0.20 · good	16.20 · high	30.00 · good	poor
Wed 17:00	0.20 · good	13.90 · high	29.90 · good	poor
Wed 18:00	0.20 · good	6.80 · high	29.90 · good	poor
Wed 19:00	0.20 · good	14.90 · high	29.90 · good	poor
Wed 20:00	0.18 · good	13.10 · high	29.90 · good	poor
Wed 21:00	0.18 · good	11.70 · high	29.90 · good	poor
Wed 22:00	0.16 · good	5.60 · high	29.80 · good	poor
Wed 23:00	0.16 · good	5.90 · high	29.90 · good	poor
Thu 00:00	0.14 · good	5.60 · high	29.90 · good	poor
Thu 01:00	0.14 · good	8.30 · high	29.90 · good	poor
Thu 02:00	0.14 · good	7.90 · high	30.00 · good	poor
Thu 03:00	0.14 · good	6.80 · high	30.10 · good	poor
Thu 04:00	0.14 · good	5.70 · high	30.20 · good	poor
Thu 05:00	0.12 · good	4.70 · good	30.30 · good	fair
Thu 06:00	0.12 · good	5.80 · high	30.40 · good	poor
Thu 07:00	0.12 · good	6.80 · high	30.40 · good	poor
Thu 08:00	0.10 · good	9.20 · high	30.40 · good	poor
Thu 09:00	0.10 · good	10.80 · high	30.30 · good	poor
Thu 10:00	0.10 · good	10.10 · high	30.30 · good	poor
Thu 11:00	0.10 · good	9.00 · high	30.20 · good	poor
Thu 12:00	0.10 · good	8.30 · high	30.20 · good	poor
Thu 13:00	0.10 · good	7.90 · high	30.10 · good	poor
Thu 14:00	0.10 · good	5.00 · good	30.10 · good	poor
Thu 15:00	0.10 · good	2.80 · good	30.10 · good	poor
Thu 16:00	0.10 · good	15.00 · high	30.00 · good	poor
Thu 17:00	0.10 · good	1.70 · good	30.00 · good	poor
Thu 18:00	0.10 · good	2.90 · good	30.00 · good	poor
Thu 19:00	0.10 · good	2.20 · good	29.90 · good	poor
Thu 20:00	0.10 · good	6.80 · high	29.90 · good	poor
Thu 21:00	0.10 · good	10.60 · high	29.90 · good	poor
Thu 22:00	0.10 · good	9.70 · high	29.90 · good	poor
Thu 23:00	0.10 · good	9.00 · high	29.90 · good	poor
Fri 00:00	0.10 · good	8.30 · high	29.90 · good	poor
Fri 01:00	0.10 · good	9.90 · high	29.90 · good	poor
Fri 02:00	0.10 · good	7.80 · high	30.00 · good	poor
Fri 03:00	0.10 · good	4.20 · good	30.10 · good	fair
Fri 04:00	0.10 · good	1.90 · good	30.20 · good	fair
Fri 05:00	0.10 · good	2.40 · good	30.30 · good	fair
Fri 06:00	0.10 · good	5.90 · high	30.30 · good	poor
Fri 07:00	0.10 · good	6.80 · high	30.30 · good	poor
Fri 08:00	0.10 · good	7.10 · high	30.30 · good	poor
Fri 09:00	0.10 · good	7.20 · high	30.20 · good	poor
Fri 10:00	0.10 · good	8.80 · high	30.20 · good	poor
Fri 11:00	0.10 · good	6.50 · high	30.10 · good	poor
Fri 12:00	0.10 · good	5.90 · high	30.10 · good	poor
Fri 13:00	0.10 · good	4.40 · good	30.00 · good	poor
Fri 14:00	0.10 · good	4.20 · good	30.00 · good	poor
Fri 15:00	0.10 · good	4.80 · good	30.00 · good	poor
Fri 16:00	0.10 · good	5.20 · good	30.00 · good	poor
Fri 17:00	0.08 · good	3.90 · good	30.00 · good	poor
Fri 18:00	0.08 · good	5.20 · good	30.00 · good	poor
Fri 19:00	0.08 · good	6.80 · high	30.00 · good	poor
Fri 20:00	0.08 · good	6.50 · high	29.90 · good	poor
Fri 21:00	0.08 · good	7.00 · high	29.90 · good	poor
Fri 22:00	0.08 · good	8.00 · high	29.90 · good	poor
Fri 23:00	0.08 · good	10.60 · high	29.90 · good	poor