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Surf Forecasts:
Dark Reef surfForecast / Khánh Hoà / Vietnam
48hr Weather and Surf, issued 12 am Sunday 17 May 2026 +07Forecast update in hr min s Forecast update imminent
Dark Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dark Reef sea temperature is
30.1° C
(Which is slightly warmer than usual)How big are the waves at Dark Reef today?
The current surf forecast for Dark Reef at 6AM is: 0.7m 4s primary swell from a South direction and 0.1m 10s secondary swell from a Northeast direction, 0.1m 8s secondary swell from a East direction (forecast issued at 12:00am May 17). The wind direction is predicted to be cross-offshore.
| Time (+07) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 2ft (0.6m) | 4s |
| Afternoon (17 May) | 2ft (0.6m) | 4s |
| Evening (17 May) | 1.5ft (0.5m) | 4s |
Table - waves today at Dark Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 45mm), heaviest during Mon night. Warm (max 31°C on Sun morning, min 25°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 4 | S 4 | S 4 | S 4 | S 4 | SSE 4 | NE 9 | SSE 4 | SSE 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | NE 8 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | S 5 | |
15 | 15 | 15 | 12 | 11 | 12 | 3 | 10 | 13 | 16 | 22 | 17 | 17 | 24 | 36 | 36 | 24 | 51 | 65 | 83 | 79 | 78 | 62 | 59 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-on | cross-on | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | glassy | glassy | cross-on | cross-on | cross-on | cross | cross-off | |
High Tide | 8:38AM1.61m | 9:13AM1.73m | 9:54AM1.79m | |||||||||||||||||||||
Low Tide | 5:17PM-0.03m | 6:11PM-0.13m | 7:07PM-0.15m | |||||||||||||||||||||
 |  |  | | |  |  |  | | | | | | |  |  | | | | | | | | | |
 | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
— | — | — | — | — | 9 | 8 | — | — | — | — | — | — | — | 6 | 14 | 4 | 1 | — | — | 1 | 1 | 1 | 4 | |
Temp °C | 27 | 26 | 27 | 31 | 30 | 28 | 25 | 26 | 26 | 26 | 27 | 30 | 31 | 30 | 28 | 26 | 26 | 26 | 27 | 30 | 30 | 30 | 29 | 27 |
31 | 30 | 31 | 34 | 32 | 32 | 28 | 30 | 30 | 30 | 31 | 33 | 34 | 32 | 31 | 31 | 30 | 31 | 32 | 34 | 32 | 32 | 32 | 31 | |
Swell 1 Height (m) Direction Period (s) | NE 10 | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | SSE 4 | NE 9 | NE 9 | NE 9 | NE 10 | NE 10 | NNE 9 | NE 8 | NE 8 | NE 8 | S 4 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 |
 kJ | 4 | 4 | 4 | 3 | 3 | 3 | 13 | 3 | 3 | 3 | 4 | 4 | 8 | 11 | 18 | 24 | 19 | 51 | 65 | 83 | 79 | 78 | 62 | 45 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 7 | E 7 | E 7 | — | NE 9 | — | — | N 10 | NE 9 | NE 9 | E 11 | E 11 | E 11 | — | NE 8 | S 4 | SE 4 | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 1 | 1 | — | 3 | — | — | 2 | 3 | 3 | 2 | 2 | 2 | — | 24 | 9 | 4 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | E 11 | — | — | — | — | NE 10 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | 16 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 4 | S 4 | S 4 | SSE 4 | — | SSE 4 | SSE 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | S 4 | S 4 | SSW 4 | SSE 4 | SSE 4 | SSE 4 | S 5 | S 5 |
| kJ | 15 | 15 | 15 | 12 | 11 | 12 | — | 10 | 13 | 16 | 22 | 17 | 17 | 24 | 36 | 36 | 33 | 17 | 3 | 5 | 9 | 13 | 34 | 59 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 677 | 677 | 677 | 1289 | 1768 | 1768 | 1346 | 425 | 425 | 425 | 425 | 455 | 1395 | 1395 | 425 | 0 | 13 | 0 | 0 | 1676 | 699 | 699 | 436 | 0 |
Best forecast wave conditions in Khánh Hoà | ||||||||||||||||||||||||
Best forecast wave conditions in Vietnam | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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