Asu Surf Break

Lat Long: 0.92° N 97.25° E

Asu Surf Forecast and Surf Report

Issued: 12 pm 25 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asu sea temperature is
30.0° C
0.7° 

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


Asu surf forecast from 25 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 1PM (local time) - 3.5ft (1.0m), 19s period, SW swell with cross-offshore winds.
  • Most powerful swell: Saturday 1 Aug, 1PM (local time) - 5ft (1.5m), 17s period, SSW swell with 1,383 kJ wave energy.
  • Next surfable swell (1★+): Saturday 25 Jul, 7PM (local time) - 4.5ft (1.3m), 10s period with S 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 Saturday (Jul 25) at 7PM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.6m and 14s. 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 1.5m 17s and forecast to arrive on Saturday (Aug 01) at 1PM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 25th Jul)4.5ft (1.3m) 10s
Best Surf 1PM (Thu 30th Jul)3.5ft (1.0m) 19s
Most Powerful 1PM (Sat 1st Aug)5ft (1.5m) 17s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Sun night. Warm (max 28°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Tue morning. Warm (max 28°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light.

Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
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
3
2
3
2
2
2
3
2
3
2
2
3
3
3
3
4
4
4
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
S
10
1.3
S
10
1.4
S
10
1.3
S
10
1.2
S
10
1
S
10
1
S
10
0.6
SSW
17
0.6
SSW
16
0.8
SSW
16
0.7
SW
15
0.8
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
14
0.9
SW
19
1.1
SW
18
1.1
SW
18
1.3
SSW
17
1.1
SW
16
1.3
SW
16
Wave Graph
Metric surfscale
Energy kJ
332
332
408
339
279
200
194
197
173
318
236
283
377
372
352
546
785
719
1009
686
823
Wind (km/h)
5
SSE
10
S
20
SSE
15
SE
10
S
10
SSE
5
SE
5
SSW
5
SSE
5
ESE
5
WSW
5
SE
5
E
5
WSW
5
ENE
5
ESE
10
SW
5
ESE
5
E
5
WNW
5
NNE
Wind State
glassy
cross-off
cross-off
off
cross-off
off
off
cross-off
cross-off
cross-off
glassy
glassy
glassy
glassy
cross-off
glassy
cross-off
cross-off
cross-off
glassy
glassy
High Tide
3:27PM0.31m
4:07AM0.61m
4:33PM0.33m
4:53AM0.65m
5:17PM0.37m
5:31AM0.70m
5:53PM0.41m
6:05AM0.74m
6:26PM0.46m
6:36AM0.77m
6:57PM0.51m
7:05AM0.79m
7:28PM0.55m
Low Tide
8:30PM0.18m
11:30AM0.17m
9:39PM0.16m
11:57AM0.13m
10:31PM0.13m
12:22PM0.10m
11:13PM0.10m
12:46PM0.08m
11:51PM0.09m
1:11PM0.07m
00:27AM0.08m
1:35PM0.06m
1:02AM0.09m
clear
thunderstorm
thunderstorm
part cloud
clear
rain showers
thunderstorm
clear
rain showers
thunderstorm
clear
rain showers
thunderstorm
clear
part cloud
cloud
part cloud
part cloud
thunderstorm
part cloud
part cloud
<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>
6:42
6:42
6:42
6:42
6:42
6:42
6:42
 mm
2
3
4
1
2
1
1
1
1
Temp °C
27
28
27
27
28
28
27
28
28
27
28
28
27
28
28
27
28
28
28
28
28
Feels °C
31
31
29
29
31
31
31
31
31
31
32
32
32
32
33
31
31
32
32
32
32
  • 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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