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Surf Forecasts:
Asu surfForecast / Nias / Indonesia
48hr Weather and Surf, issued 12 pm Monday 18 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
30.3° C
(Which is slightly warmer than usual)How big are the waves at Asu today?
The current surf forecast for Asu at 5PM is: 1.1m 15s primary swell from a South direction and 0.8m 8s secondary swell from a West direction (forecast issued at 12:00pm May 18). The wind direction is predicted to be onshore.
| Time (WIB) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2.5ft (0.8m) | 17s |
| Afternoon (18 May) | 4ft (1.2m) | 16s |
| Evening (18 May) | 3.5ft (1.1m) | 15s |
Table - waves today at Asu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Mon night. Warm (max 29°C on Mon afternoon, min 28°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 17 | S 17 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | |
346 | 822 | 648 | 440 | 631 | 614 | 581 | 565 | 462 | 442 | 432 | 567 | 574 | 574 | 574 | 432 | 560 | 546 | 603 | 595 | 580 | 640 | 557 | 631 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross | on | on | on | on | on | cross-on | cross-on | |
High Tide | 7:03PM0.49m | 7:28AM0.89m | 7:50PM0.45m | 8:16AM0.85m | 8:41PM0.43m | |||||||||||||||||||
Low Tide | 1:25PM-0.00m | 00:34AM-0.01m | 2:14PM0.02m | 1:16AM0.01m | 3:06PM0.06m | 2:01AM0.06m | ||||||||||||||||||
 |  |  |  |  | | |  | | | |  | | | | | | | |  | | | | | |
 | 6:22 | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — |
 | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | 6:31 |
— | 1 | — | — | 1 | 5 | 3 | — | — | — | — | — | 3 | 3 | 3 | 2 | 1 | — | — | — | — | 1 | 2 | 1 | |
Temp °C | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 |
33 | 30 | 31 | 31 | 31 | 30 | 30 | 31 | 32 | 31 | 30 | 33 | 31 | 32 | 31 | 32 | 32 | 33 | 31 | 32 | 33 | 32 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | W 8 | S 17 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
 kJ | 90 | 822 | 648 | 440 | 631 | 614 | 581 | 565 | 462 | 442 | 423 | 411 | 401 | 398 | 383 | 347 | 336 | 546 | 603 | 595 | 580 | 640 | 557 | 631 |
Swell 2 Height (m) Direction Period (s) | S 17 | W 8 | W 8 | W 8 | W 8 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | S 12 | S 12 | S 12 | S 12 | S 9 | S 12 | S 11 |
| kJ | 346 | 88 | 88 | 86 | 86 | 375 | 370 | 370 | 362 | 326 | 432 | 567 | 574 | 574 | 574 | 432 | 560 | 336 | 139 | 136 | 136 | 76 | 214 | 196 |
Swell 3 Height (m) Direction Period (s) | S 13 | SW 20 | SW 19 | S 11 | SW 18 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | S 9 | S 9 | S 9 | S 12 | W 7 | W 7 |
| kJ | 166 | 239 | 236 | 91 | 157 | 66 | 64 | 64 | 46 | 44 | 43 | 42 | 29 | 29 | 28 | 28 | 27 | 26 | 79 | 78 | 76 | 98 | 23 | 24 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 7 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 24 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 15 | 15 | 64 | 15 | 15 | 15 | 15 | 15 | 15 | 64 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Best forecast wave conditions in Nias | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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