10-day surf forecast with Strike Scores for Rifles, Playgrounds, Mentawais, Indonesia
Rifles is pure Mentawai magic—a flawless right-hand barrel that can run for 200+ meters when the swell angle is dialed. The wave requires a precise South swell direction to connect all sections, and when it does, it's arguably the most perfect right-hander on Earth. The tube is round, the water is crystal clear, and the rides are seemingly endless. Located in the Playgrounds region of the Mentawais, Rifles is the crown jewel that boat charter dreams are made of.
Best day in the forecast: 2026-08-07 with a score of 85/100 (Firing)
Moderate recommendation: Rifles has 1 Firing day(s) and 3 Good day(s). Worth considering.
Good alignment: Swell from 193° is 7° off optimal 200°, still within prime range.
Marginal size: 1.9m is 1.1m from ideal 3.0m.
Moderate period: 15s meets minimum 14s but below ideal 16s. Some groundswell energy present.
Onshore/cross-shore: 10 km/h from 326° (NW). Destroying wave quality. Offshore range: 0°-90°.
Groundswell-dominant conditions (clean, long-period waves).
Surfable but not special at Rifles. The 1.9m swell from 193° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.9m (6.2ft) swell from 193° (SSW) at 15s period
Good alignment: Swell from 198° is 2° off optimal 200°, still within prime range.
Marginal size: 2.7m is 0.3m from ideal 3.0m.
Perfect period: 17s is at or above ideal 16s. Long-period groundswell with maximum power.
Onshore/cross-shore: 8 km/h from 309° (NW). Destroying wave quality. Offshore range: 0°-90°.
Good surfable conditions at Rifles. 2.7m swell from 198° with manageable wind. Solid session guaranteed.
2.7m (8.9ft) swell from 198° (SSW) at 17s period
Good alignment: Swell from 196° is 4° off optimal 200°, still within prime range.
Perfect period: 16s is at or above ideal 16s. Long-period groundswell with maximum power.
Light offshore: 4 km/h from 86° (E). Grooming the wave face beautifully.
Excellent conditions at Rifles. The 2.7m swell from 196° aligns well with the spot, and light offshore winds are grooming the face. Worth planning a trip around this.
2.7m (8.9ft) swell from 196° (SSW) at 16s period
Moderate alignment: Swell from 192° is 8° off optimal 200°, workable but not ideal.
Marginal size: 2.8m is 0.2m from ideal 3.0m.
Onshore/cross-shore: 10 km/h from 127° (SE). Destroying wave quality. Offshore range: 0°-90°.
Good surfable conditions at Rifles. 2.8m swell from 192° with manageable wind. Solid session guaranteed.
2.8m (9.2ft) swell from 192° (SSW) at 16s period
Moderate alignment: Swell from 191° is 9° off optimal 200°, workable but not ideal.
Marginal size: 2.6m is 0.4m from ideal 3.0m.
Onshore/cross-shore: 15 km/h from 155° (SSE). Destroying wave quality. Offshore range: 0°-90°.
Surfable but not special at Rifles. The 2.6m swell from 191° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
2.6m (8.5ft) swell from 191° (S) at 16s period
Local wind-generated waves (choppy, short-period)
Moderate alignment: Swell from 187° is 13° off optimal 200°, workable but not ideal.
Marginal size: 2.5m is 0.5m from ideal 3.0m.
Onshore/cross-shore: 11 km/h from 159° (SSE). Destroying wave quality. Offshore range: 0°-90°.
Surfable but not special at Rifles. The 2.5m swell from 187° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
2.5m (8.2ft) swell from 187° (S) at 15s period
Moderate alignment: Swell from 182° is 18° off optimal 200°, workable but not ideal.
Good size: 3.3m is within 15% of ideal 3.0m.
Onshore/cross-shore: 11 km/h from 128° (SE). Destroying wave quality. Offshore range: 0°-90°.
Good surfable conditions at Rifles. 3.3m swell from 182° with manageable wind. Solid session guaranteed.
3.3m (10.8ft) swell from 182° (S) at 17s period
Moderate alignment: Swell from 180° is 20° off optimal 200°, workable but not ideal.
Marginal size: 3.1m is 0.1m from ideal 3.0m.
Onshore/cross-shore: 12 km/h from 138° (SE). Destroying wave quality. Offshore range: 0°-90°.
Surfable but not special at Rifles. The 3.1m swell from 180° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
3.1m (10.2ft) swell from 180° (S) at 16s period
Very low confidence (8-10 day forecast, conditions may change)
Moderate alignment: Swell from 175° is 25° off optimal 200°, workable but not ideal.
Moderate period: 14s meets minimum 14s but below ideal 16s. Some groundswell energy present.
Onshore/cross-shore: 10 km/h from 134° (SE). Destroying wave quality. Offshore range: 0°-90°.
Poor conditions at Rifles. Either swell direction (175°), size (2.5m), or wind (10 km/h from 134°) is unfavorable. Consider other spots or wait for better conditions.
2.5m (8.2ft) swell from 175° (S) at 14s period
Moderate alignment: Swell from 181° is 19° off optimal 200°, workable but not ideal.
Marginal size: 2.0m is 1.0m from ideal 3.0m.
Onshore/cross-shore: 10 km/h from 140° (SE). Destroying wave quality. Offshore range: 0°-90°.
Poor conditions at Rifles. Either swell direction (181°), size (2.0m), or wind (10 km/h from 140°) is unfavorable. Consider other spots or wait for better conditions.
2.0m (6.6ft) swell from 181° (S) at 15s period
Open-Meteo Weather API (wind/weather data)