Asu surfForecast / Nias / Indonesia

information circle48hr Weather and Surf, issued 6 pm Wednesday 20 May 2026 WIB
Forecast update in hr  min  s Forecast update imminent
Asu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Asu sea temperature is
30.3° C
(Which is slightly warmer than usual)

How big are the waves at Asu today?

The current surf forecast for Asu at 9PM is: 1.2m 15s primary swell from a Southwest direction and 0.7m 12s secondary swell from a South direction, 0.6m 7s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 20). The wind direction is predicted to be onshore.

Time (WIB) & DateWave HeightWave Period
Morning (20 May)--
Afternoon (20 May)3.5ft (1.1m)16s
Evening (20 May)4ft (1.2m)15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 25mm), heaviest during Wed night. Warm (max 29°C on Wed afternoon, min 27°C on Thu morning). Wind will be generally light.

Wed
20
Thursday
21
Friday
22
Sat
23
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
10 AM
1 PM
Rating
(10 max)
0
0
0
0
0
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
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)
1.1
SW
16
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.1
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.3
SW
16
1.3
SW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
1.3
SW
14
1.3
SW
15
1.3
SW
15
1.3
SW
15
1.3
SW
15
1.3
SW
15
1.2
SW
14
1.2
SW
14
Wave Graph
Metric surfscale
Energy kJ
603
674
657
640
631
631
535
614
614
614
666
773
753
614
528
520
676
685
685
714
763
763
581
548
Wind (km/h)
20
NW
20
NW
20
NW
20
NW
20
NNW
15
NNW
10
W
15
WNW
25
WNW
25
WNW
20
WNW
20
NW
15
NW
15
NNW
15
NW
15
NW
15
WNW
15
WNW
15
WNW
20
WNW
20
WNW
15
NW
15
NNW
20
NW
on
on
on
on
on
on
cross-on
cross-on
on
on
on
on
on
cross-on
on
on
on
on
cross-on
on
on
on
on
on
High Tide
8:41PM0.43m
9:08AM0.79m
9:40PM0.41m
10:03AM0.72m
10:53PM0.41m
11:05AM0.65m
Low Tide
3:06PM0.06m
2:01AM0.06m
4:04PM0.10m
2:52AM0.13m
5:08PM0.14m
3:57AM0.21m
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:31
6:31
6:31
3
2
3
4
4
1
1
2
1
1
1
1
1
Temp °C
29
29
29
29
29
28
27
27
27
27
28
28
28
28
28
28
28
29
28
28
28
28
28
28
30
31
31
31
31
31
30
29
28
27
29
29
30
30
30
30
30
31
30
29
30
30
30
29
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
16
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.1
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.2
SW
15
1.3
SW
16
1.3
SW
15
1.2
SW
15
1.1
SW
14
1.1
SW
14
1.3
SW
14
1.3
SW
15
1.3
SW
15
1.3
SW
15
1.3
SW
15
1.3
SW
15
1.2
SW
14
1.2
SW
14
Energy kJ
603
674
657
640
631
631
535
614
614
614
666
773
753
614
528
520
676
685
685
714
763
763
581
548
Swell 2
Height (m)
Direction
Period (s)
0.7
S
12
0.7
S
12
0.7
S
12
0.9
S
12
0.9
S
12
0.9
S
11
0.8
S
11
0.8
S
11
0.8
S
11
0.8
S
11
0.7
S
11
0.9
WNW
7
0.9
W
7
0.9
W
7
0.9
W
7
0.8
W
7
0.9
WNW
8
0.9
WNW
8
0.9
WNW
8
0.9
WNW
8
0.9
WNW
8
0.9
WNW
8
0.9
WNW
8
0.9
WNW
8
Energy kJ
139
136
136
217
214
199
146
144
144
144
108
75
74
79
83
70
96
101
104
107
107
109
115
118
Swell 3
Height (m)
Direction
Period (s)
0.7
S
9
0.7
S
9
0.6
S
9
0.1
SW
10
0.6
WNW
5
0.6
WNW
5
0.6
SW
17
0.1
W
15
0.1
W
15
0.1
W
11
0.1
W
18
0.7
S
10
0.7
S
10
0.6
S
10
0.6
S
10
0.6
S
10
0.6
S
9
0.5
S
9
0.5
S
9
0.5
S
9
0.5
S
8
0.5
S
9
0.4
S
9
0.4
S
8
Energy kJ
79
78
56
4
18
21
232
4
4
2
6
87
89
65
65
65
61
41
41
40
35
38
23
23
Wind waves
Height (m)
Direction
Period (s)
0.5
WNW
7
0.5
WNW
7
0.6
WNW
7
0.6
WNW
7
0.6
WNW
6
0.8
WNW
6
0.9
WNW
6
0.8
WNW
7
Energy kJ
27
27
36
36
31
47
64
58
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
3
3
3
3
Distance (km)
15
64
64
64
15
64
15
15
15
64
64
64
64
64
64
15
15
15
64
64
15
64
64
15
Best forecast wave conditions in Nias
Rating
(10 max)
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
3
4
4
4
4
3
3
4
4
3
3
4
4
4
4
4
3
4
4
4
4
4
3
3
Header Global
Rating
(10 max)
5
5
4
4
4
5
5
5
4
5
5
5
5
4
4
4
5
7
7
8
6
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

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Asu surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest