MARINE REPORT / 72 HOURS

Koh Rong Snorkel Report Today

Cambodia · Updated Sun 12:16 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Sun 12:16 (+07)

Koh Rong has a usable snorkeling window around Sun 15:00. The main thing to watch is sea temperature.

Right now (forecast)

Good · 5.8/10

Sun 14:00 (+07)

Later today

Good · 6.7/10

Sun 17:00 (+07)

Next three days

Excellent · 7.6/10

Wed 10:00 (+07)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 6.7/10

Best time: Sun 15:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Sun 17:00 (Good). Peak afternoon wind is about 3.7 m/s.

Email me when it is good

Sunrise

05:56

Sunset

17:48

Water

31.0°C

Max air

27.7°C

Sky

Cloudy

98% cloud

Good model window in the next 72 hours

Next good model window: Sun 15:00–17:00 (13% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

✅ Good conditions

Main blocker: Sea temperature

Monday

⚠️ Fair conditions

Main blocker: Sea temperature

Tuesday

✅ Good conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Sun 15:00 and lasts until 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (69 hours)
  • Tide/current (57 hours)
  • Darkness (39 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Mon 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.

Nearby alternatives in Cambodia

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Sun 14:00 – Wed 14:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.35 around Mon 09:00; 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.

0/24 sampled hours stay at or below 0.36m (range 0.86m to 1.06m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 5.98 to 8.59m/s).

Tides range from 0.63m to 1.09m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
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Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Sun 14:00 1.04 · high 6.79 · high 29.10 · good Poor
Sun 15:00 1.04 · high 7.85 · high 29.10 · good Poor
Sun 16:00 1.06 · high 7.58 · high 29.00 · good Poor
Sun 17:00 1.06 · high 7.39 · high 29.00 · good Poor
Sun 18:00 0.94 · high 8.13 · high 28.90 · good Poor
Sun 19:00 0.92 · high 7.14 · high 28.90 · good Poor
Sun 20:00 0.92 · high 7.74 · high 28.90 · good Poor
Sun 21:00 0.94 · high 6.41 · high 28.90 · good Poor
Sun 22:00 0.94 · high 7.10 · high 28.90 · good Poor
Sun 23:00 0.96 · high 7.71 · high 28.90 · good Poor
Mon 00:00 0.98 · high 7.55 · high 28.90 · good Poor
Mon 01:00 1.00 · high 7.99 · high 28.90 · good Poor
Mon 02:00 1.02 · high 8.36 · high 28.90 · good Poor
Mon 03:00 1.02 · high 8.20 · high 28.90 · good Poor
Mon 04:00 1.04 · high 8.59 · high 28.80 · good Poor
Mon 05:00 1.04 · high 7.84 · high 28.80 · good Poor
Mon 06:00 1.02 · high 8.47 · high 28.80 · good Poor
Mon 07:00 1.02 · high 7.94 · high 28.80 · good Poor
Mon 08:00 1.00 · high 7.17 · high 28.80 · good Poor
Mon 09:00 0.98 · high 6.15 · high 28.80 · good Poor
Mon 10:00 0.96 · high 6.08 · high 28.80 · good Poor
Mon 11:00 0.92 · high 5.98 · high 28.90 · good Poor
Mon 12:00 0.90 · high 6.49 · high 28.90 · good Poor
Mon 13:00 0.86 · high 7.78 · high 28.90 · good Poor
Mon 14:00 0.82 · high 6.33 · high 28.90 · good Poor
Mon 15:00 0.80 · high 6.31 · high 28.90 · good Poor
Mon 16:00 0.76 · high 4.27 · good 28.90 · good Poor
Mon 17:00 0.74 · high 4.49 · good 28.90 · good Poor
Mon 18:00 0.80 · high 4.12 · good 28.90 · good Poor
Mon 19:00 0.76 · high 6.12 · high 28.90 · good Poor
Mon 20:00 0.74 · high 4.32 · good 28.90 · good Poor
Mon 21:00 0.70 · high 4.83 · good 28.90 · good Poor
Mon 22:00 0.56 · high 3.64 · good 28.90 · good Poor
Mon 23:00 0.54 · high 1.42 · good 28.80 · good Poor
Tue 00:00 0.52 · high 1.75 · good 28.80 · good Poor
Tue 01:00 0.50 · high 0.92 · good 28.80 · good Poor
Tue 02:00 0.48 · high 1.84 · good 28.80 · good Poor
Tue 03:00 0.48 · high 2.10 · good 28.80 · good Poor
Tue 04:00 0.46 · high 1.22 · good 28.80 · good Poor
Tue 05:00 0.44 · high 1.31 · good 28.70 · good Poor
Tue 06:00 0.44 · high 1.60 · good 28.70 · good Poor
Tue 07:00 0.42 · high 3.60 · good 28.80 · good Fair
Tue 08:00 0.42 · high 3.58 · good 28.90 · good Fair
Tue 09:00 0.40 · high 3.44 · good 29.00 · good Good
Tue 10:00 0.40 · high 3.47 · good 29.10 · good Good
Tue 11:00 0.38 · high 3.27 · good 29.20 · good Good
Tue 12:00 0.38 · high 2.75 · good 29.40 · good Good
Tue 13:00 0.36 · good 2.94 · good 29.40 · good Good
Tue 14:00 0.34 · good 1.20 · good 29.40 · good Good
Tue 15:00 0.34 · good 1.30 · good 29.40 · good Good
Tue 16:00 0.32 · good 1.99 · good 29.40 · good Good
Tue 17:00 0.32 · good 2.29 · good 29.30 · good Good
Tue 18:00 0.30 · good 2.51 · good 29.30 · good Poor
Tue 19:00 0.26 · good 1.46 · good 29.50 · good Poor
Tue 20:00 0.24 · good 1.24 · good 29.50 · good Poor
Tue 21:00 0.26 · good 2.30 · good 29.40 · good Poor
Tue 22:00 0.26 · good 2.24 · good 29.30 · good Poor
Tue 23:00 0.24 · good 1.89 · good 29.30 · good Poor
Wed 00:00 0.24 · good 1.05 · good 29.20 · good Poor
Wed 01:00 0.22 · good 1.11 · good 29.10 · good Poor
Wed 02:00 0.22 · good 1.67 · good 29.10 · good Poor
Wed 03:00 0.22 · good 2.41 · good 29.00 · good Poor
Wed 04:00 0.22 · good 2.84 · good 28.90 · good Poor
Wed 05:00 0.22 · good 2.64 · good 28.90 · good Poor
Wed 06:00 0.20 · good 1.80 · good 28.90 · good Poor
Wed 07:00 0.20 · good 1.30 · good 28.90 · good Excellent
Wed 08:00 0.20 · good 0.70 · good 29.00 · good Excellent
Wed 09:00 0.18 · good 0.59 · good 29.20 · good Excellent
Wed 10:00 0.18 · good 1.25 · good 29.40 · good Excellent
Wed 11:00 0.18 · good 3.10 · good 29.70 · good Excellent
Wed 12:00 0.16 · good 3.57 · good 29.90 · good Excellent
Wed 13:00 0.16 · good 1.93 · good 30.00 · good Excellent