Surf Forecasts:
Lagundri-The Machine surf forecast from 21 Sep 2026:
- Best quality surf: Saturday 26 Sep, 10PM (local time) - 5ft (1.5m), 19s period, SW swell with glassy winds.
- Most powerful swell: Sunday 27 Sep, 7AM (local time) - 7ft (2.1m), 18s period, SSW swell with 2,734 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 7PM (local time) - 5.5ft (1.7m), 14s period with SSW swell.
Best Forecast Surf Conditions for Lagundri-The Machine this week:
The surf forecast for Lagundri-The Machine over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 7PM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Lagundri-The Machine in the next 16 days are 2.1m 18s and forecast to arrive on Sunday (Sep 27) at 7AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Mon 21st Sep) | 5.5ft (1.7m) 14s |
| Best Surf | 10PM (Sat 26th Sep) | 5ft (1.5m) 19s |
| Most Powerful | 7AM (Sun 27th Sep) | 7ft (2.1m) 18s |
Table - best surf conditions forecast for Lagundri-The Machine over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue afternoon. Warm (max 29°C on Mon morning, min 27°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Sat night. Warm (max 28°C on Thu morning, min 27°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 18 | SSW 16 | SSW 16 | SW 15 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 21 | SW 20 | SW 19 | SSW 18 | SW 17 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1370 | 1127 | 850 | 653 | 506 | 1021 | 1606 | 1474 | 869 | 672 | 538 | 456 | 395 | 368 | 352 | 548 | 1009 | 1904 | 2672 | 2483 | 1765 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | glassy | on | on | cross-on | cross-on | glassy | cross-on | on | glassy | cross-on | on | glassy | glassy | cross-on | glassy | glassy | glassy | glassy |
High Tide | 3:36PM0.33m | 3:15AM0.58m | 4:13PM0.42m | 4:00AM0.64m | 4:40PM0.50m | 4:35AM0.70m | 5:06PM0.59m | 5:06AM0.74m | 5:32PM0.68m | 5:36AM0.76m | 6:00PM0.75m | 6:06AM0.76m | 6:29PM0.81m | ||||||||
Low Tide | 7:41PM0.29m | 10:33AM0.20m | 9:19PM0.25m | 10:47AM0.16m | 10:09PM0.20m | 11:04AM0.11m | 10:48PM0.15m | 11:25AM0.07m | 11:24PM0.10m | 11:47AM0.04m | 00:00AM0.06m | 12:10PM0.01m | 00:36AM0.04m | ||||||||
 | |  |  |  |  | | | | | | | | | | | |  | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — |
 | — | 6:24 | — | — | 6:24 | — | — | 6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — |
mm | — | — | — | — | 2 | 3 | 1 | — | — | — | — | 4 | 1 | 2 | 3 | — | 3 | 6 | — | 1 | — |
Temp °C | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 33 | 31 | 32 | 32 | 32 | 31 | 32 | 31 | 31 | 32 | 32 | 31 | 32 | 32 | 31 | 33 | 32 | 32 | 32 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 18 | SSW 16 | SSW 16 | SW 15 | SSW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | SW 20 | SW 19 | SSW 18 | SW 17 | SSW 16 |
| kJ | 1370 | 1127 | 850 | 653 | 506 | 1021 | 1606 | 1474 | 869 | 672 | 538 | 456 | 395 | 368 | 352 | 424 | 1009 | 1904 | 2672 | 2483 | 1765 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | SW 19 | SW 18 | S 12 | WNW 7 | WNW 7 | S 9 | S 8 | S 9 | S 9 | S 8 | S 8 | S 8 | SW 21 | SW 15 | SW 14 | WNW 8 | S 8 | NW 8 |
| kJ | 7 | 14 | 13 | 171 | 486 | 235 | 11 | 11 | 122 | 111 | 99 | 95 | 86 | 89 | 68 | 548 | 503 | 476 | 11 | 63 | 18 |
Swell 3 Height (m) Direction Period (s) | SW 21 | SW 20 | SW 19 | WNW 8 | WNW 8 | SW 12 | W 13 | W 13 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | NW 8 | WNW 7 | SW 24 | S 8 | S 8 | S 8 | W 22 | NW 9 | WNW 8 |
| kJ | 18 | 15 | 58 | 12 | 11 | 118 | 3 | 3 | 5 | 5 | 5 | 5 | 2 | 5 | 141 | 69 | 63 | 47 | 9 | 21 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 46 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 167 | 1 | 0 | 64 | 64 | 64 | 64 | 0 | 13 | 64 | 0 | 13 | 64 | 0 | 0 | 64 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Nias | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Lagundri-The Machine surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Lagundri-The Machine Surf forecast
The above surf forecast table for Lagundri-The Machine provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lagundri-The Machine can be found by selecting the local surf guide option on the grey menu. Our Lagundri-The Machine 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 (Lagundri-The Machine) 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 Lagundri-The Machine 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 Lagundri-The Machine, camping, hotels and holiday cottages in Nias, consider staying in Afia which is 91 km (57 miles) away.
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