MARINE REPORT / 72 HOURS

Koh Rong Snorkel Report Today

Cambodia · Updated Sat 13:43 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 13:43 (+07)

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

Right now (forecast)

Good · 6.7/10

Sat 14:00 (+07)

Later today

Good · 6.9/10

Sat 16:00 (+07)

Next three days

Excellent · 7.5/10

Sun 17:00 (+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: Sat 15:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Sat 16:00 (Good). Peak afternoon wind is about 3.6 m/s.

Email me when it is good

Sunrise

05:55

Sunset

17:48

Water

31.2°C

Max air

29.4°C

Sky

Cloudy

75% cloud

Good model window in the next 72 hours

Next good model window: Sat 15:00–17:00 (29% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

✅ Good conditions

Main blocker: Sea temperature

Sunday

✅ Excellent conditions

Main blocker: Tide/current

Monday

✅ Good conditions

Main blocker: Tide/current

Best available hours

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

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (68 hours)
  • Sea temperature (51 hours)
  • Darkness (39 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sun 01:00.

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

Sun 14:00

Nearby alternatives in Cambodia

No nearby alternatives available.

Advanced forecast data

Viewing current forecast

Sat 14:00 – Tue 14:00 (+07)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.7 around Sun 12:00; 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 0.14m).

Wind is at or below 5.4m/s in 23/24 sampled hours (range 0.45 to 5.53m/s).

Tides range from 0.44m to 1.26m; 1 of 24 hours are in or near peak slack windows.

72-hour forecast overview
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Sat 15:00 0.14 · good 3.62 · good 31.20 · out of range Good
Sat 16:00 0.14 · good 2.33 · good 31.20 · out of range Good
Sat 17:00 0.12 · good 0.70 · good 31.20 · out of range Good
Sat 18:00 0.12 · good 1.69 · good 31.10 · out of range Poor
Sat 19:00 0.10 · good 3.45 · good 31.10 · out of range Poor
Sat 20:00 0.10 · good 3.24 · good 31.00 · out of range Poor
Sat 21:00 0.08 · good 2.48 · good 30.90 · out of range Poor
Sat 22:00 0.08 · good 2.75 · good 30.80 · out of range Poor
Sat 23:00 0.08 · good 0.74 · good 30.70 · out of range Poor
Sun 00:00 0.08 · good 2.00 · good 30.60 · out of range Poor
Sun 01:00 0.08 · good 2.44 · good 30.50 · out of range Poor
Sun 02:00 0.08 · good 3.42 · good 30.40 · good Poor
Sun 03:00 0.10 · good 2.69 · good 30.40 · good Poor
Sun 04:00 0.10 · good 5.53 · high 30.30 · good Poor
Sun 05:00 0.10 · good 4.51 · good 30.30 · good Poor
Sun 06:00 0.12 · good 3.91 · good 30.30 · good Poor
Sun 07:00 0.12 · good 3.70 · good 30.40 · good Good
Sun 08:00 0.12 · good 1.80 · good 30.50 · out of range Good
Sun 09:00 0.12 · good 1.57 · good 30.60 · out of range Good
Sun 10:00 0.12 · good 1.46 · good 30.80 · out of range Good
Sun 11:00 0.12 · good 0.85 · good 30.90 · out of range Good
Sun 12:00 0.10 · good 0.45 · good 31.00 · out of range Good
Sun 13:00 0.10 · good 1.99 · good 31.10 · out of range Good
Sun 14:00 0.10 · good 2.27 · good 31.10 · out of range Good
Sun 15:00 0.10 · good 3.51 · good 31.10 · out of range Good
Sun 16:00 0.10 · good 2.09 · good 31.10 · out of range Good
Sun 17:00 0.10 · good 0.49 · good 31.00 · out of range Excellent
Sun 18:00 0.10 · good 0.29 · good 30.90 · out of range Poor
Sun 19:00 0.10 · good 1.94 · good 30.90 · out of range Poor
Sun 20:00 0.10 · good 1.89 · good 30.80 · out of range Poor
Sun 21:00 0.10 · good 1.81 · good 30.70 · out of range Poor
Sun 22:00 0.10 · good 2.51 · good 30.60 · out of range Poor
Sun 23:00 0.14 · good 1.77 · good 30.50 · out of range Poor
Mon 00:00 0.18 · good 1.97 · good 30.40 · good Poor
Mon 01:00 0.22 · good 1.95 · good 30.30 · good Poor
Mon 02:00 0.22 · good 1.06 · good 30.30 · good Poor
Mon 03:00 0.24 · good 2.16 · good 30.30 · good Poor
Mon 04:00 0.24 · good 2.28 · good 30.20 · good Poor
Mon 05:00 0.24 · good 2.57 · good 30.20 · good Poor
Mon 06:00 0.22 · good 2.23 · good 30.30 · good Poor
Mon 07:00 0.22 · good 3.65 · good 30.30 · good Good
Mon 08:00 0.22 · good 3.81 · good 30.40 · good Good
Mon 09:00 0.20 · good 3.73 · good 30.60 · out of range Good
Mon 10:00 0.20 · good 2.59 · good 30.70 · out of range Good
Mon 11:00 0.20 · good 3.46 · good 30.90 · out of range Good
Mon 12:00 0.22 · good 3.97 · good 31.00 · out of range Good
Mon 13:00 0.22 · good 4.65 · good 31.10 · out of range Fair
Mon 14:00 0.22 · good 6.21 · high 31.10 · out of range Fair
Mon 15:00 0.24 · good 5.54 · high 31.00 · out of range Fair
Mon 16:00 0.24 · good 5.42 · high 31.00 · out of range Fair
Mon 17:00 0.24 · good 6.22 · high 30.90 · out of range Fair
Mon 18:00 0.22 · good 5.29 · good 30.80 · out of range Poor
Mon 19:00 0.22 · good 5.40 · good 30.70 · out of range Poor
Mon 20:00 0.26 · good 5.33 · good 30.70 · out of range Poor
Mon 21:00 0.28 · good 6.20 · high 30.60 · out of range Poor
Mon 22:00 0.32 · good 5.64 · high 30.60 · out of range Poor
Mon 23:00 0.32 · good 5.57 · high 30.60 · out of range Poor
Tue 00:00 0.30 · good 6.15 · high 30.60 · out of range Poor
Tue 01:00 0.30 · good 6.20 · high 30.50 · out of range Poor
Tue 02:00 0.32 · good 4.72 · good 30.50 · out of range Poor
Tue 03:00 0.32 · good 5.27 · good 30.50 · out of range Poor
Tue 04:00 0.34 · good 4.87 · good 30.40 · good Poor
Tue 05:00 0.32 · good 5.17 · good 30.40 · good Poor
Tue 06:00 0.32 · good 4.48 · good 30.40 · good Poor
Tue 07:00 0.30 · good 6.71 · high 30.40 · good Fair
Tue 08:00 0.32 · good 5.24 · good 30.50 · out of range Fair
Tue 09:00 0.32 · good 4.91 · good 30.50 · out of range Fair
Tue 10:00 0.34 · good 4.42 · good 30.60 · out of range Fair
Tue 11:00 0.34 · good 5.04 · good 30.70 · out of range Fair
Tue 12:00 0.32 · good 4.69 · good 30.70 · out of range Fair