Dark Reef surf break

Dark Reef surfForecast / Khánh Hoà / Vietnam

information circle48hr Weather and Surf, issued 12 pm Monday 18 May 2026 +07
Forecast 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
30.3° C
(Which is slightly warmer than usual)

How big are the waves at Dark Reef today?

The current surf forecast for Dark Reef at 3PM is: 1.0m 4s primary swell from a South direction and 0.3m 9s secondary swell from a Northeast direction, 0.1m 11s secondary swell from a East direction (forecast issued at 12:00pm May 18). The wind direction is predicted to be cross-onshore.

Time (+07) & DateWave HeightWave Period
Morning (18 May)2.5ft (0.7m)4s
Afternoon (18 May)3.5ft (1.0m)4s
Evening (18 May)4.5ft (1.3m)5s

Table - waves today at Dark Reef. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 6mm), mostly falling on Mon afternoon. Warm (max 32°C on Mon morning, min 26°C on Mon night). Winds decreasing (fresh winds from the SSE on Mon morning, calm by Mon night).

Mon
18
Tuesday
19
Wednesday
20
Thu
21
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
1 AM
4 AM
7 AM
Rating
(10 max)
0
0
0
0
1
1
1
1
0
0
0
0
1
0
1
1
0
0
0
1
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.6
S
4
0.8
S
4
1.1
S
5
1.3
S
5
1.3
S
5
1.1
S
5
0.6
NE
9
0.6
NE
9
0.6
NE
9
0.6
NE
9
1.2
S
5
1.3
S
5
1.3
S
5
0.6
NE
8
1
S
5
1
S
5
1.2
S
5
0.4
NE
8
0.4
NE
8
1.3
S
5
0.4
NE
8
0.4
NE
8
0.4
NE
9
0.4
NE
9
Wave Graph
Metric surfscale
Energy kJ
11
21
51
88
90
57
54
52
50
49
75
99
90
43
43
43
71
22
22
90
17
18
20
32
Wind (km/h)
15
SE
30
SSE
30
SSE
25
S
15
SSW
10
SW
5
SW
5
WSW
15
SE
20
SSE
20
SSE
15
SSW
10
SSW
10
SSW
10
SW
10
SSW
20
SSE
25
SSE
20
S
10
SSW
10
SW
10
SW
10
SW
5
SW
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
glassy
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
9:54AM1.79m
10:39AM1.79m
Low Tide
6:11PM-0.13m
7:07PM-0.15m
8:04PM-0.10m
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
cloud
part cloud
cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
clear
part cloud
part cloud
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:18
5:18
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
6:00
1
1
1
1
1
1
Temp °C
31
32
31
29
27
27
26
27
30
30
30
28
28
27
27
28
31
31
30
28
27
27
26
27
33
32
32
31
31
31
30
32
33
32
33
31
33
31
31
33
33
31
32
32
31
31
30
31
Swell 1
Height (m)
Direction
Period (s)
0.1
NE
10
0.2
NNE
9
0.3
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.6
NE
9
0.6
NE
9
0.6
NE
9
0.6
NE
9
0.6
NE
9
0.6
NE
8
0.6
NE
8
0.6
NE
8
0.5
NE
8
0.5
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
9
0.4
NE
9
Energy kJ
4
8
11
18
24
24
54
52
50
49
47
45
44
43
33
33
23
22
22
22
17
18
20
21
Swell 2
Height (m)
Direction
Period (s)
0.1
NE
9
0.1
E
11
0.1
E
11
0.1
E
11
0.3
NE
10
0.3
ESE
4
0.1
E
5
0.1
SE
5
Energy kJ
3
2
2
2
16
3
1
1
Swell 3
Height (m)
Direction
Period (s)
0.1
E
11
Energy kJ
3
Wind waves
Height (m)
Direction
Period (s)
0.6
S
4
0.8
S
4
1.1
S
5
1.3
S
5
1.3
S
5
1.1
S
5
0.9
S
5
0.8
S
5
0.7
S
4
0.9
SSE
4
1.2
S
5
1.3
S
5
1.3
S
5
1.2
S
5
1
S
5
1
S
5
1.2
S
5
1.4
S
5
1.4
S
5
1.3
S
5
1.4
S
5
1.2
S
5
1
S
5
0.9
S
4
Energy kJ
11
21
51
88
90
57
36
27
19
31
75
99
90
71
43
43
71
109
113
90
109
74
42
32
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
Distance (km)
425
425
1282
1289
1289
425
0
0
0
0
425
1395
1395
425
0
425
425
0
425
911
699
0
0
0
Best forecast wave conditions in Khánh Hoà
Rating
(10 max)
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Vietnam
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
Header Global
Rating
(10 max)
4
4
4
7
5
4
5
5
5
4
4
4
4
4
4
4
4
4
5
4
4
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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