Asu surfForecast / Nias / Indonesia

information circle16 Day Weather and Surf, issued 12 am Friday 08 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
30.1° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Asu this week:

The surf forecast for Asu over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 09) at 1AM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.9m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Asu in the next 16 days are 1.6m 16s and forecast to arrive on Tuesday (May 12) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Friday (May 08) at 1PM.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sat 9th May)4ft (1.2m) 14s
Best Surf 4PM (Tue 12th May)4.5ft (1.4m) 16s
Most Powerful10PM (Tue 12th May)5ft (1.6m) 16s

Table - best surf conditions forecast for Asu over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 45mm), heaviest during Fri morning. Warm (max 29°C on Sun afternoon, min 25°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 15mm), heaviest on Mon night. Warm (max 29°C on Sun night, min 28°C on Sun night). Wind will be generally light.

Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
3
2
2
1
2
2
2
1
1
3
3
4
4
3
3
2
2
2
2
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.4
SW
16
1.2
SW
15
1.2
SW
14
1.1
SW
14
1
SW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
14
0.9
SW
13
0.9
SW
13
1.1
SW
13
0.9
SW
18
1.4
SW
16
1.5
SSW
15
1.4
SSW
14
1.3
SSW
14
1.2
SSW
13
1.2
SSW
13
1.1
SSW
13
1.3
SSW
14
Wave Graph
Metric surfscale
Energy kJ
917
693
614
529
401
261
253
253
288
249
245
370
469
980
1042
785
682
479
472
434
595
Wind (km/h)
20
S
25
SSW
10
S
10
NE
5
NW
10
N
5
E
5
W
0
NNW
5
NNE
10
W
5
SSW
5
ESE
10
SSW
5
ESE
5
ESE
5
SW
10
SW
5
SW
10
W
10
SW
cross-off
cross-off
cross-off
cross
glassy
cross-on
glassy
glassy
glassy
cross
cross-on
glassy
cross-off
cross-off
off
cross-off
glassy
cross
cross
cross-on
cross
High Tide
9:38AM0.61m
10:03PM0.35m
10:30AM0.58m
11:45PM0.36m
11:40AM0.56m
1:33AM0.41m
1:00PM0.56m
2:38AM0.49m
2:10PM0.56m
3:22AM0.59m
3:09PM0.57m
4:01AM0.68m
4:00PM0.57m
Low Tide
4:36PM0.21m
3:06AM0.22m
5:52PM0.23m
4:14AM0.28m
7:09PM0.21m
6:17AM0.32m
8:05PM0.18m
8:09AM0.30m
8:48PM0.15m
9:21AM0.24m
9:25PM0.10m
10:16AM0.17m
10:02PM0.06m
thunderstorm
mod rain
mod rain
thunderstorm
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
6:22
6:22
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
6:31
6:31
6:31
18
7
6
2
7
3
2
1
2
1
7
1
Temp °C
26
26
27
27
27
27
28
29
29
28
29
29
28
29
29
29
29
29
29
28
29
27
26
28
32
31
31
32
33
33
32
32
33
32
32
33
33
33
33
33
31
32
Swell 1
Height (m)
Direction
Period (s)
1.4
SW
16
1.2
SW
15
1.2
SW
14
1.1
SW
14
1
SW
14
0.9
SW
13
0.9
SW
13
0.9
SW
13
0.9
SW
14
0.9
SW
13
0.9
SW
13
1.1
SW
13
1.1
SW
14
1.4
SW
16
1.5
SSW
15
1.4
SSW
14
1.3
SSW
14
1.2
SSW
13
1.2
SSW
13
1.1
SSW
13
1.3
SSW
14
Energy kJ
917
693
614
529
401
261
253
253
288
249
245
370
469
980
1042
785
682
479
472
434
595
Swell 2
Height (m)
Direction
Period (s)
0.8
W
8
0.9
W
8
0.9
WSW
8
0.7
W
8
0.6
W
8
0.5
W
7
0.4
W
7
0.4
WSW
7
0.4
SSE
8
0.4
SW
16
0.5
SW
16
0.4
SW
20
0.9
SW
18
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
8
0.5
W
8
Energy kJ
74
93
104
60
41
25
15
16
23
93
127
134
444
33
30
29
31
31
30
29
29
Swell 3
Height (m)
Direction
Period (s)
0.5
SW
12
0.5
SW
12
0.7
S
9
0.5
S
9
0.5
S
9
0.4
SSE
9
0.4
SSE
8
0.4
SSE
8
0.4
W
7
0.4
SSE
9
0.4
SSE
8
0.3
SSE
9
0.4
WSW
8
0.3
SSE
8
0.3
SSE
8
0.3
SSE
8
0.2
SSE
8
0.2
SSE
8
0.2
SSE
8
0.4
SW
18
0.2
SSE
7
Energy kJ
69
69
79
40
39
25
24
23
15
25
24
15
24
13
12
13
6
6
6
81
5
Wind waves
Height (m)
Direction
Period (s)
0.9
S
10
1
S
10
Energy kJ
154
177
Nearest Offshore or Glassy
Rating
(10 max)
4
3
3
3
2
2
2
2
2
2
2
3
3
4
4
3
3
3
2
3
3
Distance (km)
206
469
0
15
0
15
0
0
0
15
64
0
0
0
0
0
0
51
51
64
51
Best forecast wave conditions in Nias
Rating
(10 max)
3
3
2
2
2
2
2
2
2
3
3
4
4
3
3
3
2
3
3
Best forecast wave conditions in Indonesia
Rating
(10 max)
4
3
3
3
2
3
2
2
3
2
2
3
3
4
4
3
3
3
3
3
4
Header Global
Rating
(10 max)
7
5
5
5
4
5
4
4
5
5
4
8
9
8
6
4
7
5
5
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Asu Surf forecast

The above surf forecast table for Asu provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Asu can be found by selecting the local surf guide option on the grey menu. Our Asu surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Asu) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Asu may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Nias? If you are looking for accommodation near Asu, camping, hotels and holiday cottages in Nias, consider staying in Afia which is 60 km (37 miles) away.

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