MARINE REPORT / 72 HOURS

Koh Rong Snorkel Report Today

Cambodia · Updated Sun 09:08 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Sun 09:08 (+07)

Koh Rong has a usable snorkeling window around Sun 12:00. The main thing to watch is sea temperature.

Right now (forecast)

Good · 6.7/10

Sun 11:00 (+07)

Later today

Good · 6.7/10

Sun 17:00 (+07)

Next three days

Good · 7.2/10

Wed 08:00 (+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 12:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Sun 17:00 (Good). Peak afternoon wind is about 4.7 m/s.

Email me when it is good

Sunrise

05:56

Sunset

17:48

Water

30.9°C

Max air

28.5°C

Sky

Cloudy

83% cloud

Good model window in the next 72 hours

Next good model window: Sun 12:00–17:00 (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 12:00 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 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 14:00

Nearby alternatives in Cambodia

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Wed 11:00 – Sat 11:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.8 around Thu 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.

24/24 sampled hours stay at or below 0.36m (range 0.08m to 0.18m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.76 to 4.65m/s).

Tides range from 0.26m to 1.14m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
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
Wed 14:00 0.16 · good 0.76 · good 30.00 · good Good
Wed 15:00 0.14 · good 3.01 · good 30.00 · good Good
Wed 16:00 0.14 · good 4.65 · good 30.00 · good Good
Wed 17:00 0.14 · good 4.59 · good 29.90 · good Good
Wed 18:00 0.16 · good 2.11 · good 29.70 · good Poor
Wed 19:00 0.14 · good 1.70 · good 29.60 · good Poor
Wed 20:00 0.14 · good 1.98 · good 29.60 · good Poor
Wed 21:00 0.12 · good 1.75 · good 29.50 · good Poor
Wed 22:00 0.12 · good 1.75 · good 29.40 · good Poor
Wed 23:00 0.12 · good 2.45 · good 29.30 · good Poor
Thu 00:00 0.10 · good 3.07 · good 29.30 · good Poor
Thu 01:00 0.10 · good 2.81 · good 29.20 · good Poor
Thu 02:00 0.10 · good 2.71 · good 29.20 · good Poor
Thu 03:00 0.10 · good 3.03 · good 29.10 · good Poor
Thu 04:00 0.10 · good 3.56 · good 29.10 · good Poor
Thu 05:00 0.10 · good 3.44 · good 29.10 · good Poor
Thu 06:00 0.08 · good 2.89 · good 29.10 · good Poor
Thu 07:00 0.08 · good 2.16 · good 29.10 · good Excellent
Thu 08:00 0.08 · good 1.68 · good 29.20 · good Good
Thu 09:00 0.08 · good 2.26 · good 29.40 · good Excellent
Thu 10:00 0.08 · good 1.30 · good 29.60 · good Excellent
Thu 11:00 0.08 · good 1.34 · good 29.80 · good Excellent
Thu 12:00 0.08 · good 2.87 · good 30.00 · good Excellent
Thu 13:00 0.08 · good 4.42 · good 30.10 · good Good
Thu 14:00 0.08 · good 3.13 · good 30.20 · good Good
Thu 15:00 0.08 · good 2.82 · good 30.20 · good Good
Thu 16:00 0.08 · good 2.00 · good 30.10 · good Good
Thu 17:00 0.08 · good 1.39 · good 30.10 · good Good
Thu 18:00 0.04 · good 2.61 · good 30.20 · good Poor
Thu 19:00 0.04 · good 1.97 · good 30.10 · good Poor
Thu 20:00 0.04 · good 0.85 · good 30.10 · good Poor
Thu 21:00 0.04 · good 1.22 · good 30.00 · good Poor
Thu 22:00 0.04 · good 1.22 · good 29.90 · good Poor
Thu 23:00 0.04 · good 2.24 · good 29.90 · good Poor
Fri 00:00 0.04 · good 2.13 · good 29.80 · good Poor
Fri 01:00 0.04 · good 5.17 · good 29.70 · good Poor
Fri 02:00 0.04 · good 3.26 · good 29.70 · good Poor
Fri 03:00 0.04 · good 0.45 · good 29.60 · good Poor
Fri 04:00 0.04 · good 1.39 · good 29.50 · good Poor
Fri 05:00 0.04 · good 2.49 · good 29.50 · good Poor
Fri 06:00 0.04 · good 2.13 · good 29.50 · good Poor
Fri 07:00 0.04 · good 2.06 · good 29.50 · good Good
Fri 08:00 0.04 · good 1.74 · good 29.60 · good Good
Fri 09:00 0.04 · good 1.60 · good 29.70 · good Excellent
Fri 10:00 0.04 · good 1.00 · good 29.90 · good Excellent
Fri 11:00 0.04 · good 0.52 · good 30.00 · good Excellent
Fri 12:00 0.04 · good 1.30 · good 30.20 · good Excellent
Fri 13:00 0.04 · good 3.01 · good 30.30 · good Good
Fri 14:00 0.04 · good 3.24 · good 30.30 · good Good
Fri 15:00 0.04 · good 2.17 · good 30.30 · good Good
Fri 16:00 0.04 · good 1.56 · good 30.30 · good Good
Fri 17:00 0.04 · good 2.21 · good 30.20 · good Good
Fri 18:00 0.04 · good 2.99 · good 30.20 · good Poor
Fri 19:00 0.04 · good 2.38 · good 30.20 · good Poor
Fri 20:00 0.04 · good 2.70 · good 30.10 · good Poor
Fri 21:00 0.04 · good 3.26 · good 30.00 · good Poor
Fri 22:00 0.04 · good 3.55 · good 29.90 · good Poor
Fri 23:00 0.04 · good 3.51 · good 29.80 · good Poor
Sat 00:00 0.04 · good 2.69 · good 29.80 · good Poor
Sat 01:00 0.04 · good 2.92 · good 29.70 · good Poor
Sat 02:00 0.04 · good 2.87 · good 29.60 · good Poor
Sat 03:00 0.04 · good 2.80 · good 29.50 · good Poor
Sat 04:00 0.04 · good 1.40 · good 29.50 · good Poor
Sat 05:00 0.04 · good 2.04 · good 29.40 · good Poor
Sat 06:00 0.04 · good 1.35 · good 29.40 · good Poor
Sat 07:00 0.04 · good 1.90 · good 29.40 · good Excellent
Sat 08:00 0.04 · good 2.22 · good 29.40 · good Excellent
Sat 09:00 0.04 · good 2.24 · good 29.60 · good Excellent
Sat 10:00 0.04 · good 1.75 · good 29.70 · good Excellent