Asu surfForecast / Nias / Indonesia

information circle12 Day Weather and Surf, issued 6 am Tuesday 30 Dec 2025 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
29.6° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Asu this week:

The surf forecast for Asu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 03) at 7PM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.5m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Asu in the next 12 days are 1.7m 10s and forecast to arrive on Saturday (Jan 03) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WIB) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 3rd Jan)4.5ft (1.4m) 10s
Best Surf 7PM (Sat 3rd Jan)4.5ft (1.4m) 10s
Most Powerful 7AM (Sat 3rd Jan)5.5ft (1.7m) 10s

Table - best surf conditions forecast for Asu over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 17mm), heaviest on Thu night. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 21mm), heaviest during Fri morning. Warm (max 28°C on Fri afternoon, min 25°C on Sat morning). Wind will be generally light.

Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
1
0
0
0
0
0
1
1
2
2
2
0
1
2
1
2
Swell
Height Map
Wave Height (m) & direction (?)
0.6
SSW
0.6
SSW
0.8
S
0.8
S
0.9
S
1
S
0.8
S
0.8
S
0.8
S
0.8
S
0.8
SSE
1.1
SW
1.7
SW
1.4
WSW
1.3
WSW
1.1
SW
1.2
WSW
1.1
WSW
0.7
SSW
0.7
SSW
0.8
SSW
Period(s) (?)12121010111010101010119101010899141213
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9898127121181200113117122130150216592371314166237194168138195
Wind
(km/h)
10
WSW
15
NW
10
N
10
NNW
15
NW
10
WNW
10
NNW
20
WNW
15
WNW
20
WNW
20
NW
10
WSW
25
NE
10
NE
5
NNW
5
NE
10
W
15
WSW
0
WSW
10
WSW
5
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncross-
on
onononononcross-
on
ononcross-
on
crosscrossglassglasscross-
on
crossglasscrossglass
High Tide
/ height (m)
2:25PM
0.66
2:23AM
0.41
3:28PM
0.73
3:43AM
0.40
4:25PM
0.79
4:48AM
0.41
5:16PM
0.84
5:42AM
0.43
6:05PM
0.88
6:30AM
0.46
6:50PM
0.89
7:15AM
0.49
7:33PM
0.88
Low Tide
/ height (m)
9:18PM
0.23
8:14AM
0.11
10:30PM
0.15
9:17AM
0.08
11:27PM
0.08
10:15AM
0.05
12:15AM
0.03
11:07AM
0.02
12:58AM
0.01
11:56AM
0.01
1:39AM
0.00
12:43PM
0.02
2:16AM
0.02
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Sunrise6:30--6:31--6:31--6:31--6:31--6:33--6:33--
Sunset-6:35--6:35--6:36--6:36--6:37--6:37--6:37-
thunderstorm
thunderstorm
part cloud
part cloud
clear
rain showers
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
cloud
part cloud
cloud
part cloud
clear
thunderstorm
rain showers
part cloud
part cloud
Rain (mm)
31---1-210627-----61--
Temp. °C282827272828282827272828252626272828282828
Feels °C (?)313030303031302929282830242829303031313031
  • 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 12 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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