MARINE REPORT / 72 HOURS

Koh Rong Snorkel Report Today

Cambodia · Updated Sun 15:22 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Sun 15:22 (+07)

Koh Rong has a usable snorkeling window around Sun 17:00. The main thing to watch is sea temperature.

Right now (forecast)

Good · 7.1/10

Sun 16:00 (+07)

Later today

Good · 6.9/10

Sun 17:00 (+07)

Next three days

Excellent · 7.3/10

Wed 10:00 (+07)

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

Score: 6.9/10

Best time: Sun 17:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Sun 17:00 (Good). Peak afternoon wind is about 1.4 m/s.

Email me when it is good

Sunrise

05:56

Sunset

17:48

Water

31.0°C

Max air

27.9°C

Sky

Cloudy

98% cloud

Good model window in the next 72 hours

Next good model window: Sun 17:00 (14% 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 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (70 hours)
  • Tide/current (58 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

Fri 16:00 – Mon 16:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.33 around Sat 11:00; 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 1.1m to 1.46m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 6.64 to 10.07m/s).

Tides range from 0.59m to 1.02m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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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
Fri 16:00 1.46 · high 9.83 · high 29.30 · good Poor
Fri 17:00 1.40 · high 8.78 · high 29.30 · good Poor
Fri 18:00 1.28 · high 8.24 · high 29.60 · good Poor
Fri 19:00 1.24 · high 7.99 · high 29.60 · good Poor
Fri 20:00 1.24 · high 7.85 · high 29.60 · good Poor
Fri 21:00 1.16 · high 8.05 · high 29.60 · good Poor
Fri 22:00 1.16 · high 9.57 · high 29.60 · good Poor
Fri 23:00 1.16 · high 9.53 · high 29.60 · good Poor
Sat 00:00 1.14 · high 9.00 · high 29.50 · good Poor
Sat 01:00 1.14 · high 8.44 · high 29.50 · good Poor
Sat 02:00 1.18 · high 8.68 · high 29.50 · good Poor
Sat 03:00 1.24 · high 9.39 · high 29.50 · good Poor
Sat 04:00 1.28 · high 10.07 · high 29.50 · good Poor
Sat 05:00 1.26 · high 9.88 · high 29.50 · good Poor
Sat 06:00 1.22 · high 8.95 · high 29.50 · good Poor
Sat 07:00 1.20 · high 7.25 · high 29.50 · good Poor
Sat 08:00 1.20 · high 8.11 · high 29.50 · good Poor
Sat 09:00 1.18 · high 7.04 · high 29.50 · good Poor
Sat 10:00 1.18 · high 6.74 · high 29.50 · good Poor
Sat 11:00 1.16 · high 6.64 · high 29.50 · good Poor
Sat 12:00 1.12 · high 7.64 · high 29.50 · good Poor
Sat 13:00 1.10 · high 8.06 · high 29.50 · good Poor
Sat 14:00 1.12 · high 9.41 · high 29.50 · good Poor
Sat 15:00 1.14 · high 9.29 · high 29.50 · good Poor
Sat 16:00 1.16 · high 7.76 · high 29.50 · good Poor
Sat 17:00 1.16 · high 8.79 · high 29.40 · good Poor
Sat 18:00 1.12 · high 7.61 · high 29.30 · good Poor
Sat 19:00 1.12 · high 6.74 · high 29.30 · good Poor
Sat 20:00 1.10 · high 7.03 · high 29.30 · good Poor
Sat 21:00 1.06 · high 8.38 · high 29.20 · good Poor
Sat 22:00 1.04 · high 7.82 · high 29.20 · good Poor
Sat 23:00 1.04 · high 6.78 · high 29.20 · good Poor
Sun 00:00 1.06 · high 9.34 · high 29.10 · good Poor
Sun 01:00 1.06 · high 8.41 · high 29.10 · good Poor
Sun 02:00 1.06 · high 7.71 · high 29.10 · good Poor
Sun 03:00 1.06 · high 8.25 · high 29.10 · good Poor
Sun 04:00 1.06 · high 7.03 · high 29.10 · good Poor
Sun 05:00 1.06 · high 6.66 · high 29.00 · good Poor
Sun 06:00 1.04 · high 6.82 · high 29.00 · good Poor
Sun 07:00 1.04 · high 8.62 · high 29.00 · good Poor
Sun 08:00 1.04 · high 7.66 · high 29.00 · good Poor
Sun 09:00 1.02 · high 7.23 · high 29.00 · good Poor
Sun 10:00 1.02 · high 6.31 · high 29.10 · good Poor
Sun 11:00 1.02 · high 7.20 · high 29.10 · good Poor
Sun 12:00 1.02 · high 7.89 · high 29.10 · good Poor
Sun 13:00 1.02 · high 7.71 · high 29.10 · good Poor
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