
Surf Forecasts:
Bawa surf forecast from 3 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 4AM (local time) - 2.5ft (0.8m), 19s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 4PM (local time) - 5ft (1.6m), 17s period, SSW swell with 1,473 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 10PM (local time) - 5ft (1.5m), 14s period with SW 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 Thursday (Sep 03) at 10PM. The primary swell is predicted to be 1.5m and 14s period with a secondary swell of 0.7m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bawa in the next 16 days are 1.6m 17s and forecast to arrive on Thursday (Sep 10) at 4PM. 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+) | 10PM (Thu 3rd Sep) | 5ft (1.5m) 14s |
| Best Surf | 4AM (Tue 8th Sep) | 2.5ft (0.8m) 19s |
| Most Powerful | 4PM (Thu 10th Sep) | 5ft (1.6m) 17s |
Table - best surf conditions forecast for Bawa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it. We’ve got a solid run of swell on the way for Bawa, a reef and point set-up that loves a good SW groundswell. The water temperature is sitting at 86°F right now, which is about 2°F warmer than usual for this time of year—nothing crazy, but you’ll notice it’s a touch balmier than normal.
The overall pattern is a long, drawn-out pulse of SSW to SW groundswell, building in energy as the week goes on. The first real standout window hits us on Thursday morning, September 3rd. We’ve got a clean 5 ft SW swell at 15 seconds, with a light cross-offshore breeze from the NNE at 6 mph. The combined energy is punching in at 1058, which is solid moderate energy. The water is glassy, the lines are clean, and it’s a very consistent spot—this is the kind of morning that makes you skip work. That said, it’s advanced-level surf, so if you’re not comfortable on a steep face, give it a miss.
Thursday afternoon is looking glassy too, with a light W wind at 3 mph, and the swell holds at 5 ft from the SW, period dropping slightly to 14 seconds. Still very good, but the morning has the edge.
Friday morning, September 4th, is another cracker: 4 ft from the SSW at 13 seconds, with a clean offshore N wind at 6 mph. Energy is 689—still moderate, but the shape will be good. This is a great option for experienced surfers who want a slightly less intimidating wave than Thursday.
Saturday and Sunday (September 5th and 6th) take a hit. The wind swings SE to SSE, bringing cross-on conditions and choppy, messy surf. The swell drops to 3 ft–4 ft, and while the period is long (17 seconds), the onshore wind and weak energy (around 746–1133) make it marginal. The setup looks more interesting for kite surfing than paddle surfing on those days.
Now, here’s where it gets really interesting. From Tuesday morning, September 8th, the swell starts to build again. Tuesday morning is glassy, with a 4 ft SSW swell at 18 seconds—very long period groundswell. The energy jumps to 1166, and the wind is a flat calm from the east at 3 mph. The combination of glassy conditions and a long-period swell at a reef and point means the waves will be well-shaped, with plenty of power and clean walls. You’ll get longer waits between sets, but it’s worth it.
The real standout, though, is across Thursday and Friday, September 10th and 11th. Thursday morning is glassy again, 5 ft SSW at 16 seconds, energy 1444, and the wind is light from the ESE at 3 mph. The swell pushes to 5 ft in the afternoon with the same glassy wind, and energy rockets to 1748. These are the best waves of the first week—clean, powerful, and consistent. For experienced surfers, this is a no-brainer.
Friday morning, September 11th, holds 6 ft SSW at 16 seconds, but the wind picks up to a moderate WNW at 12 mph, cross-offshore. It’s still clean, but the energy is 1773—very strong. The afternoon deteriorates with a cross-on wind, so go early.
The second week (September 13th to 18th) has a series of promising windows. Sunday, September 13th, is glassy both morning and afternoon with 4 ft SW swell at 18 seconds, energy around 1700–1764. That’s a long, clean, powerful groundswell. Monday, September 14th, morning is glassy again with 5 ft SSW at 18 seconds, energy 2351—strong to very strong. The afternoon gets a bit bumpy with a cross-shore wind and the swell bumps to 7 ft, which is only for experts.
Tuesday, September 15th, morning is a standout in the second week: offshore NNW wind at 3 mph, 7 ft SSW at 16 seconds, energy 2360. That’s big, powerful, and clean—but only for very experienced surfers. The rest of the week holds clean conditions through to Friday, September 18th, with swell sizes between 4 ft and 7 ft, and winds staying light to offshore. The best of the late run looks like Thursday, September 17th, afternoon: 7 ft SSW at 17 seconds, cross-offshore wind, energy 2492. That’s a proper wave.
One thing to note: the later standouts (September 13th onwards) are promising but less certain. Still, the signs are good.
Bottom line: if you’re an experienced surfer, the first Thursday and Friday (September 10th and 11th) are your best bet for clean, powerful surf. The Sunday and Monday after (September 13th and 14th) are also excellent backups. Crowds are possible at Bawa—it’s a spot that can get busy, so factor that in.
Rusty out.
Short Range ForecastModerate rain (total 19mm), heaviest on Sat night. Warm (max 28°C on Thu afternoon, min 26°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Sun night. Warm (max 28°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | SW 15 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | SSW 14 | SSW 20 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | S 11 |
Wave Graph | |||||||||||||||||||||
953 | 915 | 834 | 590 | 528 | 451 | 390 | 510 | 913 | 848 | 724 | 907 | 604 | 449 | 339 | 745 | 870 | 1011 | 966 | 880 | 403 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | glassy | off | cross-off | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | glassy | on | glassy | glassy | on | cross-on |
High Tide | 10:01PM0.69m | 9:45AM0.43m | 11:07PM0.64m | 10:50AM0.35m | 00:43AM0.62m | 1:25PM0.31m | 2:27AM0.65m | 3:27PM0.37m | 3:41AM0.71m | 4:25PM0.46m | 4:34AM0.77m | 5:08PM0.55m | |||||||||
Low Tide | 3:03PM0.06m | 4:25AM0.22m | 3:40PM0.11m | 6:07AM0.26m | 4:33PM0.16m | 9:00AM0.24m | 6:22PM0.21m | 10:10AM0.17m | 8:37PM0.20m | 10:50AM0.12m | 9:56PM0.15m | 11:21AM0.07m | 10:50PM0.10m | ||||||||
6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:32 | — | — | 6:32 | — | — | 6:32 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | |
mm | 1 | — | 4 | 2 | 3 | 2 | — | 1 | 6 | — | 1 | 16 | 3 | 2 | 9 | — | — | 9 | — | — | — |
Temp °C | 27 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 31 | 32 | 32 | 30 | 29 | 30 | 31 | 30 | 31 | 30 | 30 | 31 | 31 | 30 | 30 | 31 | 30 | 33 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSE 8 | SSE 9 | S 9 | S 9 | S 9 | SSW 16 | SSW 16 | SSW 15 | S 11 |
953 | 915 | 834 | 590 | 528 | 451 | 312 | 510 | 913 | 848 | 724 | 907 | 284 | 264 | 269 | 300 | 235 | 1011 | 966 | 880 | 403 | |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 17 | SSW 12 | WNW 7 | WNW 8 | S 20 | WNW 8 | SSW 15 | SSW 14 | SSW 13 | SSW 18 | SSW 18 | S 10 | S 9 | S 9 | SSW 14 |
82 | 63 | 61 | 80 | 61 | 60 | 390 | 158 | 10 | 12 | 186 | 14 | 604 | 449 | 312 | 745 | 870 | 221 | 173 | 212 | 361 | |
Swell 3 Height (m) Direction Period (s) | WNW 8 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | S 17 | SSE 8 | WNW 7 | WNW 9 | W 12 | WNW 8 | S 24 | WNW 8 | SW 21 | SSW 20 | S 13 | SSW 12 | SSW 12 | SSE 15 | S 14 | SW 15 |
23 | 18 | 20 | 19 | 22 | 140 | 44 | 18 | 9 | 3 | 11 | 11 | 12 | 109 | 339 | 121 | 117 | 115 | 72 | 101 | 209 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSE 7 | SSE 7 | SSE 8 | SSE 8 | S 8 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | 78 | 69 | 207 | 212 | 217 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 15 | 15 | 15 | 15 | 138 | 15 | 15 | 15 | 0 | 15 | 0 | 0 | 15 | 15 |
Best forecast wave conditions in Nias | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.










