Can you snorkel in Koh Kradan today?

Yes. The next good snorkeling window in Koh Kradan starts Thu 00:00 and lasts until 04:00. Around 17% of the next 72 hours are suitable.

What is the best time of day to snorkel in Koh Kradan?

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 Koh Kradan 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.

Koh Kradan Snorkel Report Today

Thailand · Updated Tue 04:15 (+07) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Wed 16:08

Koh Kradan has a usable snorkeling window around Thu 07:00. The main thing to watch is sea temperature.

Score: 6.1/10

Best time: Thu 07:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Wed 18:00 (Fair). Peak afternoon wind is about 6.1 m/s.

Email me when it is good

Sunrise

06:15

Sunset

18:43

Water

31.2°C

Max air

29.6°C

Sky

Partly cloudy

33% cloud

Good window is available today

Next safe window: Thu 00:00–04:00 (17% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

✅ good conditions

Main blocker: Sea temperature

Friday

⚠️ fair conditions

Main blocker: Waves

Best available hours

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

Why this verdict

Main blockers across the next 72 hours:

Sea temperature (42 hours)
Waves (39 hours)
Tide/current (33 hours)

Jellyfish drift risk

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

Low · 31/100

Low peak drift risk around Thu 00:00.

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

Next early morning high tide: Wed 21:00

Wed 21:00, Thu 23:00

Nearby alternatives in Thailand

Koh Phi Phi

74 km away

✅ Good

Koh Lipe

87 km away

✅ Good

Railay

94 km away

✅ Good

Similan Islands

234 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Mon 09:00 – Thu 09:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.62 around Tue 10:00; 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 0.34m to 0.48m).

Wind is at or below 5.4m/s in 23/24 sampled hours (range 3.09 to 17.2m/s).

Tides range from -0.35m to 1.37m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview

Mon 09:00 poor ❌ Limited

Mon 10:00 good 🌟 Good

Mon 11:00 good 🌟 Good

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

Tue 05:00 fair ⚠️ Fair

Tue 06:00 fair ⚠️ Fair

Tue 07:00 fair ⚠️ Fair

Tue 08:00 fair ⚠️ Fair

Tue 09:00 fair ⚠️ Fair

Tue 10:00 fair ⚠️ Fair

Tue 11:00 fair ⚠️ Fair

Tue 12:00 poor ❌ Limited

Tue 13:00 poor ❌ Limited

Tue 14:00 poor ❌ Limited

Tue 15:00 poor ❌ Limited

Tue 16:00 poor ❌ Limited

Tue 17:00 poor ❌ Limited

Tue 18:00 poor ❌ Limited

Tue 19:00 poor ❌ Limited

Tue 20:00 poor ❌ Limited

Tue 21:00 poor ❌ Limited

Tue 22:00 poor ❌ Limited

Tue 23:00 poor ❌ Limited

Wed 00:00 fair ⚠️ Fair

Wed 01:00 fair ⚠️ Fair

Wed 02:00 fair ⚠️ Fair

Wed 03:00 fair ⚠️ Fair

Wed 04:00 poor ❌ Limited

Wed 05:00 poor ❌ Limited

Wed 06:00 poor ❌ Limited

Wed 07:00 poor ❌ Limited

Wed 08:00 fair ⚠️ Fair

Wed 09:00 fair ⚠️ Fair

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 fair ⚠️ Fair

Thu 01:00 fair ⚠️ Fair

Thu 02:00 fair ⚠️ Fair

Thu 03:00 fair ⚠️ Fair

Thu 04:00 fair ⚠️ Fair

Thu 05:00 fair ⚠️ Fair

Thu 06:00 fair ⚠️ Fair

Thu 07:00 fair ⚠️ Fair

Thu 08:00 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
Mon 09:00	0.42 · high	17.20 · high	30.60 · out of range	poor
Mon 10:00	0.42 · high	4.04 · good	30.80 · out of range	good
Mon 11:00	0.42 · high	3.65 · good	30.80 · out of range	good
Mon 12:00	0.42 · high	3.27 · good	30.80 · out of range	poor
Mon 13:00	0.42 · high	3.21 · good	30.80 · out of range	poor
Mon 14:00	0.40 · high	3.59 · good	30.70 · out of range	poor
Mon 15:00	0.40 · high	3.37 · good	30.70 · out of range	poor
Mon 16:00	0.40 · high	3.09 · good	30.70 · out of range	poor
Mon 17:00	0.38 · high	3.09 · good	30.60 · out of range	poor
Mon 18:00	0.38 · high	3.10 · good	30.60 · out of range	poor
Mon 19:00	0.38 · high	3.16 · good	30.60 · out of range	poor
Mon 20:00	0.38 · high	4.18 · good	30.60 · out of range	poor
Mon 21:00	0.38 · high	4.25 · good	30.60 · out of range	poor
Mon 22:00	0.38 · high	3.77 · good	30.60 · out of range	poor
Mon 23:00	0.36 · good	3.78 · good	30.60 · out of range	poor
Tue 00:00	0.36 · good	3.81 · good	30.60 · out of range	good
Tue 01:00	0.36 · good	3.66 · good	30.60 · out of range	good
Tue 02:00	0.34 · good	3.65 · good	30.60 · out of range	good
Tue 03:00	0.34 · good	3.47 · good	30.70 · out of range	good
Tue 04:00	0.36 · good	4.23 · good	30.70 · out of range	good
Tue 05:00	0.40 · high	4.43 · good	30.80 · out of range	fair
Tue 06:00	0.42 · high	4.41 · good	30.80 · out of range	fair
Tue 07:00	0.46 · high	4.91 · good	30.80 · out of range	fair
Tue 08:00	0.48 · high	5.14 · good	30.80 · out of range	fair
Tue 09:00	0.52 · high	4.85 · good	30.90 · out of range	fair
Tue 10:00	0.54 · high	4.95 · good	30.80 · out of range	fair
Tue 11:00	0.56 · high	4.59 · good	30.80 · out of range	fair
Tue 12:00	0.58 · high	4.56 · good	30.80 · out of range	poor
Tue 13:00	0.58 · high	4.42 · good	30.80 · out of range	poor
Tue 14:00	0.58 · high	4.20 · good	30.80 · out of range	poor
Tue 15:00	0.58 · high	4.11 · good	30.80 · out of range	poor
Tue 16:00	0.60 · high	3.99 · good	30.70 · out of range	poor
Tue 17:00	0.60 · high	4.11 · good	30.70 · out of range	poor
Tue 18:00	0.62 · high	4.16 · good	30.70 · out of range	poor
Tue 19:00	0.62 · high	4.35 · good	30.70 · out of range	poor
Tue 20:00	0.64 · high	4.66 · good	30.60 · out of range	poor
Tue 21:00	0.64 · high	5.28 · good	30.60 · out of range	poor
Tue 22:00	0.64 · high	5.17 · good	30.60 · out of range	poor
Tue 23:00	0.66 · high	4.82 · good	30.60 · out of range	poor
Wed 00:00	0.66 · high	4.75 · good	30.60 · out of range	fair
Wed 01:00	0.68 · high	4.82 · good	30.70 · out of range	fair
Wed 02:00	0.68 · high	5.41 · high	30.70 · out of range	fair
Wed 03:00	0.70 · high	4.73 · good	30.80 · out of range	fair
Wed 04:00	0.74 · high	3.53 · good	30.90 · out of range	poor
Wed 05:00	0.76 · high	7.07 · high	30.90 · out of range	poor
Wed 06:00	0.80 · high	5.40 · good	31.00 · out of range	poor
Wed 07:00	0.82 · high	4.17 · good	31.00 · out of range	poor
Wed 08:00	0.82 · high	4.75 · good	31.00 · out of range	fair
Wed 09:00	0.84 · high	4.35 · good	31.00 · out of range	fair
Wed 10:00	0.82 · high	4.95 · good	31.00 · out of range	poor
Wed 11:00	0.82 · high	4.60 · good	30.90 · out of range	poor
Wed 12:00	0.80 · high	3.94 · good	30.90 · out of range	poor
Wed 13:00	0.78 · high	3.42 · good	30.90 · out of range	poor
Wed 14:00	0.74 · high	2.84 · good	30.90 · out of range	poor
Wed 15:00	0.72 · high	2.27 · good	30.80 · out of range	poor
Wed 16:00	0.72 · high	1.84 · good	30.80 · out of range	poor
Wed 17:00	0.72 · high	2.71 · good	30.80 · out of range	poor
Wed 18:00	0.72 · high	3.31 · good	30.70 · out of range	poor
Wed 19:00	0.74 · high	4.01 · good	30.70 · out of range	poor
Wed 20:00	0.76 · high	4.70 · good	30.70 · out of range	poor
Wed 21:00	0.78 · high	4.21 · good	30.70 · out of range	poor
Wed 22:00	0.76 · high	3.59 · good	30.60 · out of range	poor
Wed 23:00	0.74 · high	3.50 · good	30.60 · out of range	poor
Thu 00:00	0.72 · high	4.00 · good	30.70 · out of range	fair
Thu 01:00	0.72 · high	3.65 · good	30.70 · out of range	fair
Thu 02:00	0.72 · high	2.76 · good	30.80 · out of range	fair
Thu 03:00	0.72 · high	2.51 · good	30.90 · out of range	fair
Thu 04:00	0.72 · high	2.83 · good	31.00 · out of range	fair
Thu 05:00	0.70 · high	2.98 · good	31.10 · out of range	fair
Thu 06:00	0.70 · high	3.30 · good	31.20 · out of range	fair
Thu 07:00	0.68 · high	4.09 · good	31.20 · out of range	fair
Thu 08:00	0.68 · high	4.63 · good	31.20 · out of range	poor