Surf Forecasts:
Bawa surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 1PM (local time) - 6ft (1.8m), 19s period, SW swell with glassy winds.
- Most powerful swell: Sunday 13 Sep, 1AM (local time) - 8ft (2.4m), 18s period, SW swell with 3,618 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 7AM (local time) - 5ft (1.5m), 16s 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 Wednesday (Sep 09) at 7AM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 1.0m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bawa in the next 16 days are 2.4m 18s and forecast to arrive on Sunday (Sep 13) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 9th Sep) | 5ft (1.5m) 16s |
| Best Surf | 1PM (Sat 12th Sep) | 6ft (1.8m) 19s |
| Most Powerful | 1AM (Sun 13th Sep) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for Bawa over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cooking.
Right off the bat, we’ve got a solid window of surf coming at Bawa, a reef and point setup that's exposed to the SW. The water’s sitting at 86°, which is about normal for this time of year—nothing weird there. The first few days are a bit of a tease with onshore winds and marginal conditions, but don’t write it off.
Thursday, September 10th – This is where it starts to get interesting. The early morning glass-off with a SE breeze at 3 mph is a major positive. Swell is a clean 5 ft from the SSW, with a period of 16 seconds—that’s proper groundswell, and it’s going to wrap in nicely at this point. The combined energy is pumping at 1437 (moderate to strong), so there’s plenty of push. This is the standout for the first week: glassy, lined up, and just right for experienced surfers.
Saturday, September 12th – Another morning glass-off, this time with the swell dropping slightly to 4 ft but the period stretching to 20 seconds. That’s very long period energy, and it’ll make the waves at Bawa long, clean, and smooth. Combined energy is still solid at 1961. The afternoon jumps to 7 ft, but the wind goes cross-onshore, so stick to the morning.
Thursday, September 17th – The morning session is a gem. Glassy conditions, 7 ft from the SSW, period 15 seconds. Combined energy 1889. That’s a fun, powerful wave that’s still manageable for the advanced crew. The afternoon gets hammered by a 16 mph SW wind, so pack it in early.
Friday, September 18th – Offshore winds kick in, from the N at 6-12 mph. Swell is 5 ft, period 14-15 seconds, and the combined energy is around 1200-1095. This is clean, peaky, and a great way to finish the week. The wind is moderate offshore, so expect some nice walls.
Monday, September 21st – Morning glass again, with 5 ft SSW swell and a 14-second period. Combined energy 1074. It’s not the biggest, but glassy and clean – that’s a solid session.
Tuesday, September 22nd – The last real standout. Offshore N wind at 3 mph, 4 ft from the SW with a 19-second period (very long period groundswell). Combined energy 1832. This is a low-tide, long-line wave for the connoisseurs. It’ll be clean and glassy, perfect for the point.
There are a couple of days in the second week (around the 14th-16th) where the wind is cross-onshore and the quality drops, but the swell sticks around. This is a consistent run for Bawa – it doesn’t stay poor for long. If you’re after the best of the best, lock in Thursday 10th, Saturday 12th, and Tuesday 22nd mornings.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue night. Warm (max 28°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Mon morning. Warm (max 28°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 18 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SW 21 | SW 20 | SW 19 | SW 18 | SW 17 | SW 17 | SW 16 | SW 15 | SW 16 | SSW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 870 | 1011 | 879 | 833 | 515 | 1094 | 1235 | 1305 | 1356 | 1014 | 1473 | 979 | 2921 | 3618 | 2827 | 2664 | 1933 | 1685 | 1149 | 1856 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | on | glassy | cross-on | on | cross-on | on | glassy | glassy | cross-on | cross | cross-on | on | on | cross-on | on | cross-on |
High Tide | 4:25PM0.46m | 4:34AM0.77m | 5:08PM0.55m | 5:17AM0.81m | 5:45PM0.64m | 5:55AM0.82m | 6:19PM0.72m | 6:30AM0.79m | 6:52PM0.77m | 7:02AM0.75m | 7:25PM0.79m | 7:32AM0.68m | 7:56PM0.78m | |||||||
Low Tide | 9:56PM0.15m | 11:21AM0.07m | 10:50PM0.10m | 11:50AM0.04m | 11:36PM0.06m | 12:16PM0.02m | 00:17AM0.04m | 12:40PM0.01m | 00:54AM0.04m | 1:04PM0.01m | 1:30AM0.06m | 1:26PM0.02m | 2:04AM0.09m | |||||||
 |  | |  | |  | |  | | | | | | | | | | | |  | |
 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — |
 | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — |
mm | — | 7 | — | — | 6 | 1 | — | 6 | 2 | — | 4 | 2 | — | 1 | — | — | 4 | 3 | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 30 | 31 | 31 | 31 | 32 | 31 | 32 | 32 | 31 | 32 | 32 | 31 | 32 | 31 | 31 | 32 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | S 9 | SSW 16 | SSW 15 | SSW 15 | S 11 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SW 14 | SW 15 | SW 19 | SW 18 | SW 17 | SW 17 | SW 16 | SW 15 | SW 16 | SSW 16 |
| kJ | 246 | 1011 | 879 | 833 | 371 | 1094 | 1235 | 1305 | 1356 | 1014 | 857 | 869 | 2921 | 3618 | 2827 | 2664 | 1933 | 1685 | 1149 | 1856 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | S 9 | S 9 | S 9 | SSW 14 | S 11 | S 10 | S 11 | S 10 | SSE 10 | SW 21 | SW 20 | SW 14 | S 9 | SSE 9 | SSE 9 | SSE 8 | SSE 9 | SSW 16 | SSE 6 |
| kJ | 870 | 203 | 198 | 158 | 515 | 332 | 245 | 238 | 225 | 163 | 1473 | 979 | 606 | 81 | 82 | 80 | 68 | 15 | 751 | 53 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | S 15 | S 14 | SSW 18 | WNW 11 | WNW 10 | WNW 10 | SW 24 | SW 24 | SSE 10 | S 9 | S 9 | WNW 8 | WSW 19 | WSW 18 | WNW 8 | WSW 16 | WNW 7 | WNW 8 |
| kJ | 117 | 117 | 109 | 144 | 280 | 11 | 10 | 9 | 347 | 195 | 125 | 113 | 81 | 13 | 72 | 60 | 13 | 52 | 10 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 6 | SSE 8 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 32 | 90 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 138 | 15 | 15 | 15 | 15 | 0 | 15 | 15 | 15 | 15 | 0 | 0 | 63 | 15 | 15 | 15 | 15 | 15 | 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.
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