Asu Surf Break

Lat Long: 0.92° N 97.25° E

Asu Surf Forecast and Surf Report

Issued: 6 pm 12 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asu sea temperature is
30.0° C
0.6° 

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


Asu surf forecast from 12 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 1AM (local time) - 3ft (0.9m), 19s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 15 Jul, 7AM (local time) - 5.5ft (1.7m), 16s period, SSW swell with 1,531 kJ wave energy.
  • Next surfable swell (1★+): Monday 13 Jul, 4AM (local time) - 3ft (0.9m), 12s period with SSW 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 Monday (Jul 13) at 4AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.5m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Asu in the next 16 days are 1.7m 16s and forecast to arrive on Wednesday (Jul 15) at 7AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 13th Jul)3ft (0.9m) 12s
Best Surf 1AM (Tue 14th Jul)3ft (0.9m) 19s
Most Powerful 7AM (Wed 15th Jul)5.5ft (1.7m) 16s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Tue night. Warm (max 28°C on Sun afternoon, min 27°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Thu night. Warm (max 28°C on Wed afternoon, min 27°C on Wed night). Wind will be generally light.

Sun
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
2
2
3
4
4
4
4
4
3
3
3
2
3
3
2
3
3
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SSW
12
1
SSW
12
1.1
SSW
12
1.2
SSW
12
0.9
SSW
19
1
SSW
18
1.3
SSW
17
1.1
SSW
16
1.7
SSW
16
1.5
SSW
15
1.5
SSW
15
1.4
SSW
15
1.4
SSW
15
1.4
SW
15
1.4
SW
16
1.3
SW
15
1.3
SW
15
1.3
SW
14
1.2
SW
14
1.2
SW
14
1.2
SSW
13
Wave Graph
Metric surfscale
Energy kJ
400
313
322
368
637
666
932
643
1341
1065
936
818
829
893
883
724
695
667
597
540
472
Wind (km/h)
15
S
10
SE
10
SE
15
S
5
SSE
5
SE
10
SSW
5
SSE
5
SSE
5
SW
5
S
5
E
5
SW
5
SE
5
SSE
10
SW
5
SSE
0
ESE
10
WSW
5
WNW
10
WNW
Wind State
cross-off
off
off
cross-off
cross-off
off
cross-off
cross-off
glassy
cross
cross-off
glassy
cross
glassy
glassy
cross
glassy
glassy
cross
on
cross-on
High Tide
4:15PM0.39m
4:49AM0.81m
5:16PM0.42m
5:41AM0.86m
6:08PM0.46m
6:29AM0.89m
6:56PM0.50m
7:13AM0.89m
7:41PM0.54m
7:55AM0.86m
8:25PM0.58m
8:35AM0.80m
9:09PM0.60m
9:12AM0.72m
Low Tide
9:41PM0.08m
11:51AM0.06m
10:41PM0.05m
12:36PM0.02m
11:35PM0.02m
1:18PM0.01m
00:26AM0.02m
1:56PM0.01m
1:14AM0.04m
2:31PM0.02m
2:01AM0.08m
3:04PM0.05m
2:48AM0.13m
part cloud
clear
part cloud
part cloud
thunderstorm
clear
clear
thunderstorm
clear
clear
part cloud
clear
clear
rain showers
thunderstorm
clear
rain showers
thunderstorm
clear
rain showers
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:31
6:31
6:31
6:31
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:40
6:40
6:40
6:42
6:42
6:42
6:42
 mm
3
4
2
2
2
1
2
1
Temp °C
28
28
27
28
28
28
28
28
28
28
28
28
28
28
28
28
28
27
28
28
27
Feels °C
30
31
30
31
31
32
31
32
32
32
32
32
32
32
32
31
32
32
31
31
30
  • 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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