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Surf Forecasts:
Asu surfForecast / Nias / Indonesia
48hr Weather and Surf, issued 6 pm Thursday 21 May 2026 WIBForecast 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
30.2° C
(Which is normal for this time of year)How big are the waves at Asu today?
The current surf forecast for Asu at 2AM is: 1.3m 16s primary swell from a Southwest direction and 0.7m 7s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 21). The wind direction is predicted to be cross-onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 4ft (1.2m) | 15s |
| Afternoon (22 May) | 4ft (1.2m) | 14s |
| Evening (22 May) | 4.5ft (1.3m) | 15s |
Table - waves today at Asu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Thu afternoon. Warm (max 29°C on Thu afternoon, min 28°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | |
614 | 614 | 744 | 773 | 753 | 686 | 598 | 520 | 746 | 685 | 685 | 714 | 753 | 763 | 630 | 548 | 548 | 564 | 581 | 573 | 556 | 418 | 406 | 400 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | cross-on | cross-on | on | on | on | on | on | on | glassy | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | |
High Tide | 9:40PM0.41m | 10:03AM0.72m | 10:53PM0.41m | 11:05AM0.65m | 00:20AM0.44m | 12:15PM0.59m | ||||||||||||||||||
Low Tide | 4:04PM0.10m | 2:52AM0.13m | 5:08PM0.14m | 3:57AM0.21m | 6:17PM0.17m | 5:34AM0.28m | ||||||||||||||||||
 |  | | |  |  | | |  | |  | | | | | | | | | | |  | | | |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — |
 | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | 6:31 |
2 | 3 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | — | — | 1 | |
Temp °C | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 |
31 | 30 | 30 | 30 | 30 | 31 | 32 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 30 | 31 | 31 | 30 | 30 | 30 | 31 | 31 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 |
 kJ | 614 | 614 | 744 | 773 | 753 | 686 | 598 | 520 | 746 | 685 | 685 | 714 | 753 | 763 | 630 | 548 | 548 | 564 | 581 | 573 | 556 | 418 | 406 | 400 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | WNW 7 | WNW 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 8 | WNW 8 | S 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 144 | 144 | 108 | 48 | 63 | 64 | 66 | 80 | 82 | 90 | 98 | 80 | 80 | 80 | 87 | 90 | 35 | 96 | 87 | 68 | 76 | 77 | 111 | 108 |
Swell 3 Height (m) Direction Period (s) | W 15 | WNW 6 | WNW 7 | S 9 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | W 15 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 4 | 33 | 45 | 61 | 87 | 89 | 65 | 65 | 61 | 60 | 41 | 40 | 39 | 38 | 37 | 35 | 4 | 35 | 35 | 22 | 21 | 21 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | WNW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 8 | W 3 | — | — | NW 3 | — | — | — |
| kJ | 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 96 | 6 | — | — | 5 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 64 | 15 | 15 | 64 | 76 | 15 | 15 | 15 | 15 | 15 | 15 | 0 | 15 | 15 | 15 | 64 | 64 | 64 | 15 | 64 | 15 | 15 | 64 | 64 |
Best forecast wave conditions in Nias | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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