Asu Surf Break

Lat Long: 0.92° N 97.25° E

Asu Surf Forecast and Surf Report

Issued: 6 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Asu sea temperature is
30.1°C
1.0° 

Asu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Asu surf forecast from 2 Sep 2026:

  • Best quality surf: Wednesday 2 Sep, 1PM (local time) - 6ft (1.9m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 7AM (local time) - 6ft (1.9m), 16s period, SSW swell with 1,752 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 1PM (local time) - 6ft (1.9m), 16s period with SW swell.

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 Wednesday (Sep 02) at 1PM. The primary swell is predicted to be 1.9m and 16s period with a secondary swell of 0.7m 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 1.9m 16s and forecast to arrive on Wednesday (Sep 09) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Wed 2nd Sep)6ft (1.9m) 16s
Best Surf 1PM (Wed 2nd Sep)6ft (1.9m) 16s
Most Powerful 7AM (Wed 9th Sep)6ft (1.9m) 16s

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


Short Range Forecast

Heavy rain (total 23mm), heaviest during Wed night. Warm (max 29°C on Wed afternoon, min 27°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 34mm), heaviest during Mon night. Warm (max 28°C on Sat morning, min 27°C on Sat morning). Wind will be generally light.

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
4
3
3
2
3
2
3
3
2
4
3
2
4
3
3
3
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
SW
16
1.8
SW
16
1.6
SW
16
1.5
SW
15
1.5
SW
14
1.4
SW
14
1.3
SSW
13
1.3
SSW
13
1.2
SSW
13
0.9
SSW
17
0.9
SSW
17
1.5
SSW
16
1.3
SSW
16
1.2
SSW
16
1.3
SSW
16
1.2
SSW
15
1
SSW
15
0.6
SSW
20
1
SSW
18
1.2
SSW
18
1.5
SSW
16
Wave Graph
Metric surfscale
Energy kJ
1852
1571
1317
966
928
834
599
572
451
409
409
1180
848
724
870
596
456
317
681
948
1209
Wind (km/h)
10
ESE
10
SSW
0
S
10
NNE
5
SW
5
SW
0
S
5
WSW
0
W
10
ESE
20
SSE
15
ESE
15
SE
15
S
15
SSE
5
E
5
WNW
5
WSW
5
WNW
5
SW
10
SSE
Wind State
off
cross-off
glassy
cross-on
cross
cross
glassy
cross-on
glassy
off
cross-off
off
off
cross-off
off
cross-off
glassy
glassy
glassy
cross
cross-off
High Tide
9:14PM0.71m
9:06AM0.51m
10:02PM0.67m
9:46AM0.42m
11:08PM0.63m
10:50AM0.33m
00:45AM0.61m
1:27PM0.30m
2:30AM0.64m
3:29PM0.35m
3:43AM0.70m
4:27PM0.44m
Low Tide
2:33PM0.03m
3:26AM0.16m
3:04PM0.06m
4:26AM0.21m
3:40PM0.10m
6:10AM0.26m
4:33PM0.16m
9:05AM0.23m
6:23PM0.21m
10:13AM0.17m
8:40PM0.20m
10:52AM0.11m
9:57PM0.15m
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
rain showers
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:26
6:26
6:24
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:34
6:34
6:34
6:32
6:32
6:31
6:31
 mm
2
7
1
8
2
3
1
4
1
11
4
1
12
5
Temp °C
28
29
28
28
29
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
Feels °C
32
33
31
33
33
32
32
31
32
30
29
30
31
30
30
33
32
32
32
31
31
  • 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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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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