Surf Forecasts:
Bawa surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 20 Aug, 4AM (local time) - 8ft (2.5m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 1AM (local time) - 8ft (2.5m), 19s period, SSW swell with 4,720 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 4PM (local time) - 5.5ft (1.7m), 16s period with S 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 Friday (Aug 14) at 4PM. The primary swell is predicted to be 1.7m and 16s period with a secondary swell of 1.1m and 11s. 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 2.5m 19s and forecast to arrive on Wednesday (Aug 19) at 1AM. 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+) | 4PM (Fri 14th Aug) | 5.5ft (1.7m) 16s |
| Best Surf | 4AM (Thu 20th Aug) | 8ft (2.5m) 17s |
| Most Powerful | 1AM (Wed 19th Aug) | 8ft (2.5m) 19s |
Table - best surf conditions forecast for Bawa over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk in feet and miles an hour for those who think that way.
Bawa’s a reef and point, and it’s got good exposure. The first day or so is flat, but we get into it proper on Friday, August 14th.
Best session of the whole run is that Friday morning. Swell is 6ft from the south, with a 17-second period – that’s long-period groundswell with proper push. Water temp is 30°C, about normal for the time of year. The energy reading is 2198 (moderate to strong). The wind is glassy – dead calm – so it will be absolute perfection. This one is for the experienced crew; a touch heavy for the learners.
Saturday, August 15th, morning is another cracker. 5ft south swell, 14-second interval, and again, glass. Energy is 1673 (moderate). Clean, lined-up waves.
Sunday the 16th holds the clean run with 5ft and glassy conditions. A little smaller but still sweet.
Then the wind turns ugly. From Monday the 17th, it’s cross-onshore or onshore through the week. The swell builds, though. Tuesday the 18th brings a 5ft SSW swell with a very long 21-second period. Energy jumps to 3121 (strong) in the afternoon, but the onshore breeze at 9 mph will have it chopped up.
Midweek, Wednesday and Thursday, the swell hits 8ft – big, expert-only territory. Energy is over 4700 (very strong), but the wind is 12-13 mph onshore. It’s a washing machine. Probably more for the kite surfers than us.
The good stuff returns on Saturday, August 22nd. The swell is 8ft, and the wind goes glassy in the afternoon. Energy is 2710 (strong). That afternoon is the second real standout. Then Sunday the 23rd stays clean with 6ft and glassy winds all day. A nice way to finish the good run.
Everything after that, from Monday the 24th, fades to small and messy with onshore flow. Not worth the effort.
So circle Friday morning, August 14th, and Saturday afternoon, August 22nd. Those are the ones.
Rusty, signing off.
Short Range ForecastHeavy rain (total 86mm), heaviest during Fri morning. Warm (max 28°C on Sat afternoon, min 24°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sun night. Warm (max 28°C on Sun afternoon, min 27°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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) | S 15 | S 19 | S 17 | S 16 | S 15 | S 14 | S 14 | S 13 | S 14 | S 14 | SW 14 | SW 14 | SW 14 | SSW 18 | SSW 17 | SSW 20 | SSW 19 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1123 | 1526 | 1643 | 1438 | 1571 | 1026 | 840 | 577 | 700 | 604 | 305 | 305 | 301 | 721 | 1238 | 1625 | 4720 | 3759 | 4423 | 4513 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | cross-off | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 6:41PM0.61m | 6:54AM0.88m | 7:20PM0.67m | 7:30AM0.84m | 7:57PM0.70m | 8:04AM0.77m | 8:33PM0.72m | 8:35AM0.68m | 9:10PM0.70m | 9:04AM0.59m | 9:48PM0.67m | 9:29AM0.50m | 10:30PM0.62m | |||||||
Low Tide | 00:23AM0.03m | 1:22PM0.01m | 1:07AM0.04m | 1:49PM0.02m | 1:48AM0.07m | 2:15PM0.03m | 2:28AM0.11m | 2:39PM0.05m | 3:07AM0.17m | 3:03PM0.08m | 3:49AM0.22m | 3:27PM0.11m | ||||||||
 |  | |  |  |  |  |  |  | |  | | | | | | | | | | |
 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — |
 | 6:38 | — | — | 6:38 | — | — | 6:38 | — | — | 6:38 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — |
mm | 4 | 24 | 51 | 7 | — | — | — | — | — | — | 2 | 1 | — | 1 | — | — | 5 | 1 | 1 | 4 |
Temp °C | 27 | 26 | 24 | 24 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 32 | 29 | 28 | 26 | 31 | 31 | 30 | 32 | 31 | 31 | 32 | 30 | 29 | 31 | 30 | 29 | 32 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 19 | S 17 | S 16 | S 15 | S 14 | S 14 | S 13 | S 14 | S 14 | SW 14 | SW 14 | SW 14 | SSW 18 | SSW 17 | SSW 16 | SSW 19 | SSW 18 | SSW 18 | SSW 17 |
| kJ | 1123 | 1526 | 1643 | 1438 | 1571 | 1026 | 840 | 577 | 700 | 604 | 305 | 305 | 301 | 721 | 1238 | 1466 | 4720 | 3759 | 4423 | 4513 |
Swell 2 Height (m) Direction Period (s) | S 20 | S 11 | S 11 | S 11 | SW 16 | SW 17 | SW 17 | SW 15 | SW 15 | SW 15 | S 10 | S 12 | S 12 | SW 13 | SSW 21 | SSW 20 | W 8 | W 8 | W 9 | W 8 |
| kJ | 373 | 465 | 434 | 269 | 153 | 405 | 330 | 326 | 276 | 262 | 120 | 220 | 171 | 215 | 1176 | 1625 | 43 | 29 | 56 | 34 |
Swell 3 Height (m) Direction Period (s) | S 18 | SW 15 | SW 15 | SW 15 | WNW 11 | S 18 | S 18 | S 18 | WNW 8 | WNW 9 | S 13 | WNW 8 | WNW 8 | S 11 | SSW 13 | WNW 8 | SSE 9 | S 8 | WSW 20 | — |
| kJ | 227 | 223 | 188 | 75 | 44 | 242 | 161 | 219 | 38 | 59 | 160 | 53 | 80 | 146 | 277 | 35 | 43 | 34 | 75 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSE 3 | — | — | — | S 9 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | 39 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 15 | 15 | 0 | 37 | 0 | 50 | 0 | 0 | 138 | 0 | 15 | 15 | 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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