Asu surfForecast / Nias / Indonesia

information circle12 Day Weather and Surf, issued 6 pm Sunday 07 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 1.0°C warmer than normal for this time of year)


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 Tuesday (Dec 09) at 7AM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 0.7m and 11s. 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 3.0m 8s and forecast to arrive on Wednesday (Dec 10) at 1PM. 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+) 7AM (Tue 9th Dec)3.5ft (1.1m) 15s
Best Surf 7AM (Tue 9th Dec)3.5ft (1.1m) 15s
Most Powerful 1PM (Wed 10th Dec)10ft (3.0m) 8s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 68mm), heaviest during Tue night. Warm (max 27°C on Sun afternoon, min 25°C on Sun night). Winds increasing (light winds from the SSW on Mon night, strong winds from the WSW by Tue night).

Days 3-6 Weather Summary Heavy rain (total 187mm), heaviest during Fri morning. Warm (max 27°C on Thu morning, min 24°C on Sat morning). Winds decreasing (strong winds from the WNW on Fri morning, moderate winds from the WNW by Sat morning).

Sun
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
1
2
1
0
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.6
SW
0.8
SW
0.9
SW
1
SW
1.1
SW
1.1
SW
1.2
SW
1
SW
2.5
WSW
2.5
WSW
0.9
SW
0.9
SW
1
SW
1
SW
1.9
SW
2.3
WSW
2.5
WSW
1.8
WSW
1.4
WSW
2.1
WSW
1.7
WSW
Period(s) (?)181616161515141488131414137889899
Wave
Graph
(?)Metric surfscale
Energy kJ (?)252322432489485543606379982804299327357342392613844512250732443
Wind
(km/h)
15
WNW
10
N
10
NNE
15
W
20
W
10
S
20
SSW
35
WSW
35
WSW
35
W
25
WNW
25
WNW
30
W
30
WSW
25
NW
40
WNW
40
WNW
25
NW
30
WNW
20
NW
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
crosscross-
on
cross-
on
cross-
off
cross-
off
cross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
ononononononon
High Tide
/ height (m)
7:40PM
0.88
8:05AM
0.45
8:26PM
0.83
8:56AM
0.44
9:13PM
0.76
9:53AM
0.45
10:02PM
0.68
11:00AM
0.46
10:53PM
0.61
12:15PM
0.49
11:52PM
0.53
1:30PM
0.53
1:01AM
0.47
Low Tide
/ height (m)
2:29AM
0.03
1:26PM
0.04
3:16AM
0.07
2:13PM
0.10
4:04AM
0.11
3:04PM
0.18
4:54AM
0.15
4:08PM
0.25
5:45AM
0.18
5:39PM
0.31
6:37AM
0.19
7:40PM
0.33
7:28AM
0.19
Sun
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunrise--6:20--6:20--6:20--6:20--6:22--6:22--6:22
Sunset6:23--6:23--6:24--6:24--6:25--6:25--6:25--
light rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
Rain (mm)
1326121727917178921282834251394
Temp. °C272627272727262626252627262625252625252627
Feels °C (?)282930293030272524232628252525222425242529
  • 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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