Surf Forecasts:
Bawa surf forecast from 27 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 10AM (local time) - 7.5ft (2.3m), 17s period, SW swell with glassy winds.
- Most powerful swell: Monday 31 Aug, 7PM (local time) - 7.5ft (2.3m), 18s period, SSW swell with 3,200 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 7AM (local time) - 5ft (1.5m), 14s period with SSW swell.
Best Forecast Surf Conditions for Bawa this week:
The surf forecast for Bawa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 29) at 7AM. The primary swell is predicted to be 1.5m and 14s period with a secondary swell of 0.7m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bawa in the next 16 days are 2.3m 18s and forecast to arrive on Monday (Aug 31) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 29th Aug) | 5ft (1.5m) 14s |
| Best Surf | 10AM (Tue 1st Sep) | 7.5ft (2.3m) 17s |
| Most Powerful | 7PM (Mon 31st Aug) | 7.5ft (2.3m) 18s |
Table - best surf conditions forecast for Bawa over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's talk about the waves coming up at Bawa.
The water temperature is sitting at a warm 86°, which is pretty much bang on average for this time of year, so no surprises there. We've got a solid run of surf ahead, but the standout window is looking like the first week of September, with a couple of real gems.
We kick off on Thursday, August 27th. Thursday morning is the real deal to start. The swell is a clean 4 ft from the SSW, with a period of 19 seconds – that's a long-period groundswell packing some serious energy (1870). The wind is dead calm, glassy as can be. This is fantastic for experienced surfers; the waves will be well-shaped and powerful, but at this size, the long period might make it a bit fat on the beach, but Bawa is a reef and point setup, so it's going to be lined up. Thursday afternoon gets a bit cross-on, so it'll get bumpy.
Friday the 28th and Saturday the 29th see the swell size bump up, but the wind gets messy. Friday morning has a solid 7 ft SSW swell, but the cross-on wind from the ESE will chop it up. Saturday is similar, with the wind making things marginal. You'll want to be picky.
Sunday the 30th is a bit of a lull, with the swell dropping to 3 ft and a very long period of 21 seconds. The energy is moderate (1008), but it's glassy on Sunday morning, so there might be the odd clean but weak set.
Now, here's the good stuff. The action really picks up on Monday, August 31st. The morning is glassy, with a 6 ft SW swell and a very solid 18-second period. The energy is strong at 2386. This is excellent for experienced surfers.
Then, Tuesday, September 1st, is the standout. Tuesday morning is glassy, with a 8 ft SW swell and a 17-second period. That's a 8 ft groundswell with a massive 3131 energy reading. The wind is glassy. This is top-tier, powerful, and clean surf, but at this size, it's for experts only. It's going to be a big, long-period swell, and Bawa is a reef and point, so it will handle it beautifully.
Wednesday, September 2nd, is still good. The morning is glassy again with a 6 ft SW swell, but the energy is dropping slightly to 1852. Still excellent conditions.
We get a bit of a drop-off from Thursday, September 3rd, through Saturday, September 5th. The swell drops to around 5 ft, but it's still glassy in the mornings, so the waves will be clean and fun, just not as powerful.
The final bit of the outlook is interesting. From Sunday, September 6th, right through to Friday, September 11th, we see a run of cleaner conditions. Sunday the 6th has glassy mornings with a 5 ft SSW swell, and Monday the 7th has a nice offshore wind from the north. The swell is a little smaller, but the wind is favourable. The standout in this second week is Thursday, September 10th. It's glassy calm with a 3 ft SSW swell, but the period is a very long 16 seconds, giving it a surprising amount of energy (1094) for the size. It'll be clean and fun. Friday the 11th also has a clean, offshore wind with a 5 ft SSW swell.
The best of the best is hands down Tuesday, September 1st morning. That 8 ft, glassy, long-period groundswell is the one to wait for. Get on it.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat afternoon. Warm (max 28°C on Thu morning, min 27°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 28°C on Sun morning, min 27°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SW 14 | SSW 14 | SSW 13 | SSW 21 | SSW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
1242 | 1208 | 2611 | 2102 | 1856 | 1158 | 846 | 672 | 472 | 562 | 993 | 1381 | 1996 | 2316 | 2994 | 3003 | 2632 | 2228 | 1737 | 1467 | 1224 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | on | cross-on | on | cross-on | cross-on | on | on | cross-on | on | glassy | glassy | on | cross-on | glassy | on | on | glassy | on | on |
High Tide | 6:03PM0.56m | 6:08AM0.79m | 6:30PM0.63m | 6:36AM0.79m | 6:59PM0.68m | 7:03AM0.78m | 7:28PM0.72m | 7:32AM0.74m | 8:00PM0.75m | 8:01AM0.68m | 8:34PM0.75m | 8:32AM0.61m | 9:14PM0.73m | ||||||||
Low Tide | 12:11PM0.08m | 11:39PM0.10m | 12:31PM0.05m | 00:14AM0.08m | 12:53PM0.03m | 00:49AM0.07m | 1:16PM0.02m | 1:24AM0.07m | 1:40PM0.01m | 2:01AM0.09m | 2:05PM0.02m | 2:40AM0.12m | 2:33PM0.03m | 3:26AM0.16m | |||||||
6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | |
— | 6:36 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — | — | 6:34 | — | |
mm | — | — | — | — | — | — | — | 1 | 2 | — | — | 1 | — | 1 | — | — | — | 1 | — | — | 4 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 32 | 30 | 31 | 31 | 30 | 31 | 31 | 30 | 32 | 32 | 31 | 32 | 32 | 31 | 32 | 31 | 31 | 31 | 31 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SW 14 | SSW 14 | SSW 13 | SW 13 | SSW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
1242 | 1208 | 2611 | 2102 | 1856 | 1158 | 846 | 672 | 472 | 394 | 993 | 1381 | 1996 | 2316 | 2994 | 3003 | 2632 | 2228 | 1737 | 1467 | 1224 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | S 8 | S 8 | S 8 | SSE 8 | SSE 7 | SSE 8 | SSE 7 | SSW 21 | SSW 13 | SSW 12 | S 12 | S 12 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 |
597 | 742 | 29 | 29 | 29 | 44 | 57 | 60 | 55 | 562 | 346 | 241 | 268 | 217 | 136 | 99 | 125 | 125 | 90 | 82 | 78 | |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 8 | SW 20 | S 7 | S 7 | S 9 | SW 12 | SW 12 | WNW 8 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
31 | 33 | 22 | 33 | 19 | 16 | 26 | 16 | 198 | 52 | 36 | 76 | 122 | 120 | 28 | 29 | 31 | 26 | 25 | 25 | 24 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 15 | 15 | 15 | 138 | 15 | 15 | 15 | 15 | 15 | 15 | 0 | 0 | 15 | 15 | 0 | 15 | 15 | 0 | 15 | 15 |
Best forecast wave conditions in Nias | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Bawa Surf forecast
The above surf forecast table for Bawa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bawa can be found by selecting the local surf guide option on the grey menu. Our Bawa 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 (Bawa) 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 Bawa 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 Bawa, camping, hotels and holiday cottages in Nias, consider staying in Afia which is 67 km (42 miles) away.











