Thursday
✅ excellent conditions
Main blocker: Tide/current
Vietnam · Updated Tue 04:15 (+07) · Source: Snapshot · Showing fallback/stale data
The skinny
Go in the best window Report Thu 04:37Nha 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
Best morning signal: Thu 10:00 (Excellent).
Best afternoon signal: Thu 15:00 (Excellent). Peak afternoon wind is about 4.9 m/s.
Good window is available today
Next safe window: Thu 00:00–11:00 (53% of next 72h are suitable)
Thursday
✅ excellent conditions
Main blocker: Tide/current
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: Thu 21:00
Thu 21:00
Viewing historical data
Fri 21:00 – Mon 21:00 (+07)
Best snorkel score is 0.47 around Sat 07:00; 5 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 0.46m to 0.74m).
Wind is at or below 5.4m/s in 16/24 sampled hours (range 1.2 to 15.7m/s).
Tides range from -0.06m to 1.24m; 0 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 |
|---|---|---|---|---|
| Fri 21:00 | 0.66 · high | 4.10 · good | 28.60 · good | poor |
| Fri 22:00 | 0.62 · high | 3.90 · good | 28.60 · good | poor |
| Fri 23:00 | 0.60 · high | 4.50 · good | 28.60 · good | poor |
| Sat 00:00 | 0.56 · high | 4.20 · good | 28.60 · good | fair |
| Sat 01:00 | 0.58 · high | 5.30 · good | 28.60 · good | fair |
| Sat 02:00 | 0.60 · high | 6.90 · high | 28.70 · good | fair |
| Sat 03:00 | 0.62 · high | 9.00 · high | 28.70 · good | poor |
| Sat 04:00 | 0.66 · high | 11.60 · high | 28.80 · good | poor |
| Sat 05:00 | 0.68 · high | 14.70 · high | 28.90 · good | poor |
| Sat 06:00 | 0.72 · high | 15.70 · high | 28.90 · good | poor |
| Sat 07:00 | 0.72 · high | 11.10 · high | 28.90 · good | poor |
| Sat 08:00 | 0.74 · high | 11.10 · high | 28.90 · good | poor |
| Sat 09:00 | 0.74 · high | 7.40 · high | 28.90 · good | poor |
| Sat 10:00 | 0.72 · high | 4.40 · good | 28.90 · good | fair |
| Sat 11:00 | 0.72 · high | 3.10 · good | 28.90 · good | fair |
| Sat 12:00 | 0.70 · high | 4.70 · good | 28.80 · good | poor |
| Sat 13:00 | 0.66 · high | 3.40 · good | 28.80 · good | poor |
| Sat 14:00 | 0.60 · high | 2.10 · good | 28.70 · good | poor |
| Sat 15:00 | 0.56 · high | 1.20 · good | 28.70 · good | poor |
| Sat 16:00 | 0.52 · high | 2.20 · good | 28.70 · good | poor |
| Sat 17:00 | 0.50 · high | 2.40 · good | 28.60 · good | poor |
| Sat 18:00 | 0.46 · high | 2.00 · good | 28.60 · good | poor |
| Sat 19:00 | 0.46 · high | 1.30 · good | 28.50 · good | poor |
| Sat 20:00 | 0.46 · high | 1.80 · good | 28.50 · good | poor |
| Sat 21:00 | 0.46 · high | 2.10 · good | 28.40 · good | poor |
| Sat 22:00 | 0.44 · high | 2.10 · good | 28.40 · good | poor |
| Sat 23:00 | 0.44 · high | 3.10 · good | 28.40 · good | poor |
| Sun 00:00 | 0.42 · high | 2.70 · good | 28.40 · good | good |
| Sun 01:00 | 0.40 · high | 1.40 · good | 28.50 · good | good |
| Sun 02:00 | 0.38 · high | 2.80 · good | 28.60 · good | good |
| Sun 03:00 | 0.36 · good | 5.50 · high | 28.80 · good | good |
| Sun 04:00 | 0.36 · good | 9.00 · high | 28.90 · good | fair |
| Sun 05:00 | 0.36 · good | 12.40 · high | 29.00 · good | fair |
| Sun 06:00 | 0.36 · good | 6.30 · high | 29.10 · good | fair |
| Sun 07:00 | 0.38 · high | 8.00 · high | 29.10 · good | fair |
| Sun 08:00 | 0.42 · high | 5.10 · good | 29.10 · good | fair |
| Sun 09:00 | 0.44 · high | 1.90 · good | 29.00 · good | good |
| Sun 10:00 | 0.44 · high | 2.70 · good | 29.00 · good | good |
| Sun 11:00 | 0.46 · high | 2.60 · good | 28.90 · good | good |
| Sun 12:00 | 0.46 · high | 2.40 · good | 28.90 · good | poor |
| Sun 13:00 | 0.46 · high | 4.30 · good | 28.80 · good | poor |
| Sun 14:00 | 0.46 · high | 4.30 · good | 28.70 · good | poor |
| Sun 15:00 | 0.46 · high | 1.20 · good | 28.60 · good | poor |
| Sun 16:00 | 0.46 · high | 3.00 · good | 28.50 · good | poor |
| Sun 17:00 | 0.44 · high | 3.10 · good | 28.50 · good | poor |
| Sun 18:00 | 0.44 · high | 2.70 · good | 28.40 · good | poor |
| Sun 19:00 | 0.42 · high | 2.20 · good | 28.30 · good | poor |
| Sun 20:00 | 0.42 · high | 3.00 · good | 28.20 · good | poor |
| Sun 21:00 | 0.40 · high | 1.80 · good | 28.20 · good | poor |
| Sun 22:00 | 0.40 · high | 2.30 · good | 28.10 · good | poor |
| Sun 23:00 | 0.38 · high | 3.80 · good | 28.10 · good | poor |
| Mon 00:00 | 0.38 · high | 3.60 · good | 28.10 · good | good |
| Mon 01:00 | 0.36 · good | 1.90 · good | 28.10 · good | good |
| Mon 02:00 | 0.36 · good | 2.40 · good | 28.20 · good | good |
| Mon 03:00 | 0.34 · good | 8.10 · high | 28.40 · good | fair |
| Mon 04:00 | 0.34 · good | 12.40 · high | 28.50 · good | fair |
| Mon 05:00 | 0.32 · good | 12.30 · high | 28.60 · good | fair |
| Mon 06:00 | 0.32 · good | 7.30 · high | 28.70 · good | good |
| Mon 07:00 | 0.32 · good | 2.60 · good | 28.80 · good | good |
| Mon 08:00 | 0.32 · good | 3.20 · good | 28.80 · good | good |
| Mon 09:00 | 0.32 · good | 3.90 · good | 28.70 · good | good |
| Mon 10:00 | 0.32 · good | 1.86 · good | 28.50 · good | good |
| Mon 11:00 | 0.34 · good | 1.15 · good | 28.50 · good | good |
| Mon 12:00 | 0.38 · high | 1.28 · good | 28.50 · good | poor |
| Mon 13:00 | 0.36 · good | 1.36 · good | 28.40 · good | poor |
| Mon 14:00 | 0.36 · good | 0.95 · good | 28.40 · good | poor |
| Mon 15:00 | 0.34 · good | 0.85 · good | 28.30 · good | poor |
| Mon 16:00 | 0.32 · good | 0.76 · good | 28.20 · good | poor |
| Mon 17:00 | 0.32 · good | 0.98 · good | 28.20 · good | poor |
| Mon 18:00 | 0.30 · good | 0.76 · good | 28.10 · good | poor |
| Mon 19:00 | 0.30 · good | 0.51 · good | 28.10 · good | poor |
| Mon 20:00 | 0.32 · good | 0.72 · good | 28.00 · good | poor |