Wednesday
❌ poor conditions
Main blocker: Darkness
Vietnam · Updated Tue 04:15 (+07) · Source: Snapshot · Showing fallback/stale data
The skinny
Go in the best window Report Wed 22:35Nha Trang has a usable snorkeling window around Thu 07:00. The main thing to watch is darkness.
Score: 7.8/10
Best time: Thu 07:00
Main risk: Darkness
No useful morning window is showing yet.
No useful afternoon window is showing yet.
Good window is available today
Next safe window: Thu 00:00–11:00 (44% of next 72h are suitable)
Wednesday
❌ poor conditions
Main blocker: Darkness
Thursday
✅ excellent conditions
Main blocker: Darkness
Friday
✅ excellent conditions
Main blocker: Darkness
Next safe window starts at Thu 00:00 until 11:00.
Main blockers across the next 72 hours:
Drift estimate from wind, swell, current and warm water.
Low peak drift risk around Thu 14:00.
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.
Next early morning high tide: Wed 21:00
Wed 21:00, Thu 21:00
Viewing historical data
Wed 15:00 – Sat 15:00 (+07)
Best snorkel score is 0.67 around Thu 10:00; 12 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.
Tap a chart to load just that series.
0/24 sampled hours stay at or below 0.36m (range 0.38m to 0.58m).
Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.2 to 4.35m/s).
Tides range from 0.35m to 0.98m; 1 of 24 hours are in or near peak slack windows.
We score each hour from 0 to 1 using daylight and these weighted components:
| Time | Wave (m) | Wind (m/s) | Sea temp (°C) | Status |
|---|---|---|---|---|
| Wed 15:00 | 0.48 · high | 0.68 · good | 28.60 · good | poor |
| Wed 16:00 | 0.46 · high | 0.62 · good | 28.50 · good | poor |
| Wed 17:00 | 0.42 · high | 0.86 · good | 28.50 · good | poor |
| Wed 18:00 | 0.40 · high | 1.21 · good | 28.40 · good | poor |
| Wed 19:00 | 0.40 · high | 1.44 · good | 28.40 · good | poor |
| Wed 20:00 | 0.40 · high | 1.30 · good | 28.30 · good | poor |
| Wed 21:00 | 0.40 · high | 1.47 · good | 28.30 · good | poor |
| Wed 22:00 | 0.40 · high | 1.20 · good | 28.20 · good | poor |
| Wed 23:00 | 0.38 · high | 1.50 · good | 28.20 · good | poor |
| Thu 00:00 | 0.38 · high | 1.07 · good | 28.20 · good | good |
| Thu 01:00 | 0.38 · high | 0.35 · good | 28.30 · good | good |
| Thu 02:00 | 0.38 · high | 0.46 · good | 28.40 · good | good |
| Thu 03:00 | 0.38 · high | 1.55 · good | 28.50 · good | good |
| Thu 04:00 | 0.40 · high | 2.12 · good | 28.60 · good | good |
| Thu 05:00 | 0.40 · high | 3.39 · good | 28.70 · good | good |
| Thu 06:00 | 0.42 · high | 4.35 · good | 28.70 · good | good |
| Thu 07:00 | 0.48 · high | 4.04 · good | 28.80 · good | good |
| Thu 08:00 | 0.52 · high | 3.47 · good | 28.80 · good | good |
| Thu 09:00 | 0.56 · high | 2.16 · good | 28.70 · good | fair |
| Thu 10:00 | 0.56 · high | 1.46 · good | 28.60 · good | good |
| Thu 11:00 | 0.58 · high | 1.21 · good | 28.60 · good | good |
| Thu 12:00 | 0.58 · high | 0.46 · good | 28.60 · good | poor |
| Thu 13:00 | 0.56 · high | 0.78 · good | 28.50 · good | poor |
| Thu 14:00 | 0.54 · high | 0.20 · good | 28.50 · good | poor |
| Thu 15:00 | 0.52 · high | 0.45 · good | 28.50 · good | poor |
| Thu 16:00 | 0.50 · high | 0.54 · good | 28.40 · good | poor |
| Thu 17:00 | 0.48 · high | 0.70 · good | 28.40 · good | poor |
| Thu 18:00 | 0.46 · high | 0.52 · good | 28.30 · good | poor |
| Thu 19:00 | 0.44 · high | 0.50 · good | 28.30 · good | poor |
| Thu 20:00 | 0.42 · high | 0.96 · good | 28.30 · good | poor |
| Thu 21:00 | 0.40 · high | 0.86 · good | 28.20 · good | poor |
| Thu 22:00 | 0.38 · high | 0.82 · good | 28.20 · good | poor |
| Thu 23:00 | 0.38 · high | 0.96 · good | 28.20 · good | poor |
| Fri 00:00 | 0.36 · good | 0.86 · good | 28.30 · good | good |
| Fri 01:00 | 0.36 · good | 1.57 · good | 28.40 · good | good |
| Fri 02:00 | 0.36 · good | 0.82 · good | 28.50 · good | good |
| Fri 03:00 | 0.36 · good | 1.38 · good | 28.70 · good | good |
| Fri 04:00 | 0.44 · high | 1.69 · good | 28.80 · good | good |
| Fri 05:00 | 0.50 · high | 3.08 · good | 28.90 · good | fair |
| Fri 06:00 | 0.58 · high | 5.02 · good | 29.00 · good | fair |
| Fri 07:00 | 0.60 · high | 5.20 · good | 29.10 · good | fair |
| Fri 08:00 | 0.62 · high | 4.24 · good | 29.10 · good | fair |
| Fri 09:00 | 0.64 · high | 3.04 · good | 29.00 · good | fair |
| Fri 10:00 | 0.64 · high | 2.88 · good | 29.00 · good | good |
| Fri 11:00 | 0.62 · high | 2.59 · good | 29.00 · good | fair |
| Fri 12:00 | 0.62 · high | 1.66 · good | 28.90 · good | poor |
| Fri 13:00 | 0.60 · high | 1.40 · good | 28.90 · good | poor |
| Fri 14:00 | 0.58 · high | 0.99 · good | 28.90 · good | poor |
| Fri 15:00 | 0.56 · high | 0.93 · good | 28.90 · good | poor |
| Fri 16:00 | 0.56 · high | 1.45 · good | 28.90 · good | poor |
| Fri 17:00 | 0.54 · high | 1.07 · good | 28.80 · good | poor |
| Fri 18:00 | 0.54 · high | 0.92 · good | 28.80 · good | poor |
| Fri 19:00 | 0.52 · high | 0.85 · good | 28.80 · good | poor |
| Fri 20:00 | 0.50 · high | 0.57 · good | 28.80 · good | poor |
| Fri 21:00 | 0.48 · high | 0.50 · good | 28.80 · good | poor |
| Fri 22:00 | 0.48 · high | 1.14 · good | 28.70 · good | poor |
| Fri 23:00 | 0.46 · high | 1.50 · good | 28.70 · good | poor |
| Sat 00:00 | 0.46 · high | 1.71 · good | 28.80 · good | fair |
| Sat 01:00 | 0.46 · high | 1.73 · good | 28.90 · good | good |
| Sat 02:00 | 0.48 · high | 1.25 · good | 29.00 · good | fair |
| Sat 03:00 | 0.48 · high | 1.93 · good | 29.10 · good | good |
| Sat 04:00 | 0.52 · high | 3.02 · good | 29.20 · good | good |
| Sat 05:00 | 0.54 · high | 1.47 · good | 29.40 · good | good |
| Sat 06:00 | 0.58 · high | 1.27 · good | 29.40 · good | fair |
| Sat 07:00 | 0.62 · high | 1.77 · good | 29.40 · good | fair |
| Sat 08:00 | 0.66 · high | 2.15 · good | 29.40 · good | fair |
| Sat 09:00 | 0.70 · high | 2.05 · good | 29.40 · good | fair |
| Sat 10:00 | 0.70 · high | 2.62 · good | 29.40 · good | fair |
| Sat 11:00 | 0.70 · high | 2.27 · good | 29.30 · good | fair |
| Sat 12:00 | 0.70 · high | 2.80 · good | 29.30 · good | poor |
| Sat 13:00 | 0.68 · high | 2.49 · good | 29.20 · good | poor |
| Sat 14:00 | 0.66 · high | 2.50 · good | 29.20 · good | poor |