10-day surf forecast with Strike Scores for Barra Kwanza, Luanda, Angola
Barra Kwanza sits at the mouth of the Kwanza River, about 80km south of Luanda. The rivermouth creates sandbars that shift with the seasons, producing both lefts and rights depending on conditions. The water can be murky after rains, but the waves can be excellent when the banks are in good shape.
Best day in the forecast: 2026-08-10 with a score of 64/100 (Fair)
Marginal conditions: Average score 57/100. Surfable but not special. Consider other spots.
Good alignment: Swell from 219° is 6° off optimal 225°, still within prime range.
Too small: 0.9m is below minimum 1.0m. Waves will be weak/mushy.
Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
Onshore/cross-shore: 13 km/h from 209° (SSW). Destroying wave quality. Offshore range: 60°-130°.
Groundswell-dominant conditions (clean, long-period waves).
Surfable but not special at Barra Kwanza. The 0.9m swell from 219° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
0.9m (3.0ft) swell from 219° (SW) at 15s period
Marginal size: 1.4m is 0.6m from ideal 2.0m.
Good period: 13s is 93% of ideal 14s. Clean, powerful groundswell.
Onshore/cross-shore: 11 km/h from 224° (SW). Destroying wave quality. Offshore range: 60°-130°.
Surfable but not special at Barra Kwanza. The 1.4m swell from 219° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.4m (4.6ft) swell from 219° (SW) at 13s period
Moderate alignment: Swell from 217° is 8° off optimal 225°, workable but not ideal.
Marginal size: 1.3m is 0.7m from ideal 2.0m.
Moderate period: 10s meets minimum 10s but below ideal 14s. Some groundswell energy present.
Onshore/cross-shore: 10 km/h from 225° (SW). Destroying wave quality. Offshore range: 60°-130°.
Poor conditions at Barra Kwanza. Either swell direction (217°), size (1.3m), or wind (10 km/h from 225°) is unfavorable. Consider other spots or wait for better conditions.
1.3m (4.3ft) swell from 217° (SW) at 10s period
Moderate alignment: Swell from 213° is 12° off optimal 225°, workable but not ideal.
Marginal size: 1.2m is 0.8m from ideal 2.0m.
Perfect period: 14s is at or above ideal 14s. Long-period groundswell with maximum power.
Onshore/cross-shore: 9 km/h from 249° (WSW). Destroying wave quality. Offshore range: 60°-130°.
Surfable but not special at Barra Kwanza. The 1.2m swell from 213° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.2m (3.9ft) swell from 213° (SSW) at 14s period
Moderate alignment: Swell from 212° is 13° off optimal 225°, workable but not ideal.
Marginal size: 1.6m is 0.4m from ideal 2.0m.
Onshore/cross-shore: 9 km/h from 236° (SW). Destroying wave quality. Offshore range: 60°-130°.
Surfable but not special at Barra Kwanza. The 1.6m swell from 212° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.6m (5.2ft) swell from 212° (SSW) at 13s period
Moderate alignment: Swell from 209° is 16° off optimal 225°, workable but not ideal.
Onshore/cross-shore: 9 km/h from 261° (W). Destroying wave quality. Offshore range: 60°-130°.
Surfable but not special at Barra Kwanza. The 1.6m swell from 209° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.6m (5.2ft) swell from 209° (SSW) at 14s period
Marginal size: 1.5m is 0.5m from ideal 2.0m.
Onshore/cross-shore: 8 km/h from 300° (WNW). Destroying wave quality. Offshore range: 60°-130°.
Surfable but not special at Barra Kwanza. The 1.5m swell from 212° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.5m (4.9ft) swell from 212° (SSW) at 13s period
Good alignment: Swell from 218° is 7° off optimal 225°, still within prime range.
Marginal size: 1.1m is 0.9m from ideal 2.0m.
Onshore/cross-shore: 9 km/h from 227° (SW). Destroying wave quality. Offshore range: 60°-130°.
Surfable but not special at Barra Kwanza. The 1.1m swell from 218° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.1m (3.6ft) swell from 218° (SW) at 13s period
Very low confidence (8-10 day forecast, conditions may change)
Good alignment: Swell from 229° is 4° off optimal 225°, still within prime range.
Too small: 0.8m is below minimum 1.0m. Waves will be weak/mushy.
Perfect period: 16s is at or above ideal 14s. Long-period groundswell with maximum power.
Onshore/cross-shore: 11 km/h from 273° (W). Destroying wave quality. Offshore range: 60°-130°.
Poor conditions at Barra Kwanza. Either swell direction (229°), size (0.8m), or wind (11 km/h from 273°) is unfavorable. Consider other spots or wait for better conditions.
0.8m (2.6ft) swell from 229° (SW) at 16s period
Moderate alignment: Swell from 243° is 18° off optimal 225°, workable but not ideal.
Marginal size: 1.0m is 1.0m from ideal 2.0m.
Onshore/cross-shore: 11 km/h from 221° (SW). Destroying wave quality. Offshore range: 60°-130°.
Surfable but not special at Barra Kwanza. The 1.0m swell from 243° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.0m (3.3ft) swell from 243° (WSW) at 16s period
Open-Meteo Weather API (wind/weather data)