Surf Forecasts:
Nungas surf forecast from 22 Aug 2026:
- Best quality surf: Friday 28 Aug, 5AM (local time) - 8ft (2.5m), 18s period, SW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 11AM (local time) - 10ft (3.0m), 17s period, SW swell with 4,660 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 8PM (local time) - 7ft (2.2m), 16s period with SW swell.
Best Forecast Surf Conditions for Nungas this week:
The surf forecast for Nungas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 8PM. The primary swell is predicted to be 2.2m and 16s period with a secondary swell of 0.1m and 25s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nungas in the next 16 days are 3.0m 17s and forecast to arrive on Friday (Aug 28) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Tuesday (Aug 25) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 22nd Aug) | 7ft (2.2m) 16s |
| Best Surf | 5AM (Fri 28th Aug) | 8ft (2.5m) 18s |
| Most Powerful | 11AM (Fri 28th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Nungas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s on the menu at Nungas.
We’ve got a solid run of swell coming, starting this Saturday the 22nd of August. The water temp is sitting at 79°F, which is pretty much average for the time of year – no weirdness there.
This weekend is all about the groundswell. Saturday afternoon fires up with a strong 8ft SSW swell, period around 16 seconds, and light cross-off winds from the ESE at 9 mph. The combined energy is pumping at 2563 (moderate to strong), and it’s clean. That’s excellent for experienced surfers, but at that size, it’s expert territory. Nungas is a reef and point, so that long-period swell will wrap in nicely.
Sunday the 23rd keeps the pace. Morning has 7ft SSW swell, 15-second period, with SE winds at 6 mph. Energy is 2260, and it’s clean. Afternoon picks up energy at 2587, with SSE winds. This is the standout window for the weekend – consistent, clean, and powerful. Still 7ft, so bring your experience. Crowds are possible, so get in early.
Monday the 24th holds 7ft to 7ft, SSW direction, period 15-16 seconds. Winds stay light and cross-off. Energy drops a little through the day, from 2016 to 2013. The morning gets a “marginal” tide tag, so pick your session.
Tuesday the 25th sees the swell back off. Morning is 5ft, but the afternoon bumps to 6ft SW with a 16-second period and energy at 1591. That’s fun, more manageable size, but still has that long-period power. Winds are clean.
Wednesday the 26th and Thursday the 27th are still in the game, with 5ft to 6ft SSW/SW swell, periods around 14 seconds, and light cross-off breezes. Energy in the 1000-1100 range – moderate. Good, clean, but not the standouts of the weekend.
Now, Friday the 28th of August – this is the one to circle. Morning brings a 10ft SW swell, 17-second period, and combined energy of 4660 (very strong). The wind is light from the SE at 6 mph, and it’s clean. That is a serious groundswell pulse. For Nungas, a reef and point, that long period and big size will produce some freight-train lines. Strictly for experts. The afternoon drops to 8ft, but the wind goes more cross-shore, so the morning is the call.
Saturday the 29th and Sunday the 30th keep the swell in the 5ft to 7ft range, with light winds. Energy is moderate to strong. Good, but the standouts are the weekend just gone and Friday the 28th.
The first week of September sees another pulse. Tuesday the 1st of September has 7ft SW swell, 17-second period, and energy at 2328. Winds are 9 mph cross-off – clean. That’s a strong option for the long-range planners. Wednesday the 2nd of September is even bigger, with 8ft SW swell and energy at 3243. Light winds again. This is promising but less certain that far out, but it’s got the look of another stand-out day.
The rest of the first week of September runs 4ft to 6ft, with clean conditions. It’s consistent, but the real juice is in those first two weekends and the big Friday pulse. There’s no gap – it’s a solid 16-day run of surf.
For the absolute best, I’d say Saturday the 22nd and Friday the 28th of August are the top-tier windows. Saturday the 22nd has the clean 8ft SSW groundswell and light cross-off wind. Friday the 28th has the biggest, most powerful swell of the whole period at 10ft, but you need to be experienced. The long-period groundswell barrels at Nungas will be something special.
Keep your eyes on the long-range Tuesday and Wednesday of the first week of September, too – that could be a late-charging stand-out.
This is Rusty, signing off. Go get some.
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 22°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 22°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 15 | SSW 14 | SW 16 | SW 15 | SW 14 | SSW 14 | SSW 13 | SW 13 | SW 21 | SW 19 | SW 17 | SW 16 | SW 16 |
Wave Graph | ||||||||||||||||||||
2550 | 1857 | 1963 | 1797 | 1546 | 2016 | 1856 | 1472 | 763 | 1591 | 1237 | 1016 | 1080 | 888 | 689 | 658 | 2475 | 4660 | 3855 | 2954 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross |
High Tide | 4:44PM1.45m | 4:45AM2.03m | 10:07PM1.61m | 7:24AM2.06m | 9:45PM1.82m | 8:37AM2.25m | 10:01PM2.03m | 9:21AM2.46m | 10:20PM2.25m | 9:55AM2.64m | 10:40PM2.46m | 10:26AM2.78m | 11:01PM2.66m | |||||||
Low Tide | 8:25PM1.38m | 2:10PM1.14m | 11:41PM1.60m | 3:08PM0.93m | 2:37AM1.45m | 3:38PM0.72m | 3:22AM1.23m | 4:03PM0.54m | 3:55AM1.00m | 4:26PM0.39m | 4:25AM0.79m | 4:49PM0.29m | 4:55AM0.59m | |||||||
— | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | |
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 23 | 26 | 27 | 24 | 26 | 27 | 24 | 26 | 27 | 24 | 27 | 27 | 24 | 27 | 27 | 24 | 27 | 27 | 24 |
Feels °C | 28 | 25 | 27 | 27 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 29 | 28 | 27 | 28 | 27 | 26 | 28 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 15 | SSW 14 | SW 16 | SW 15 | SW 14 | SSW 14 | SSW 13 | SW 13 | SW 15 | SW 19 | SW 17 | SW 16 | SW 16 |
2550 | 1857 | 1963 | 1797 | 1546 | 2016 | 1856 | 1472 | 763 | 1591 | 1237 | 1016 | 1080 | 888 | 689 | 574 | 2475 | 4660 | 3855 | 2954 | |
Swell 2 Height (m) Direction Period (s) | S 26 | SSW 24 | SSW 21 | SSW 20 | SSW 18 | ESE 4 | SW 20 | ESE 6 | SW 17 | E 5 | E 5 | S 7 | E 4 | SW 24 | SW 16 | SW 12 | SSW 14 | — | — | — |
13 | 54 | 297 | 790 | 835 | 12 | 60 | 71 | 358 | 12 | 29 | 23 | 9 | 22 | 165 | 336 | 1028 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SE 5 | — | SW 20 | E 6 | SSE 5 | — | — | — | — | SW 24 | SSW 16 | SW 21 | — | — | — | — |
— | — | — | — | 28 | — | 97 | 31 | 8 | — | — | — | — | 22 | 104 | 658 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 4 | ESE 5 | — | — | — | — | SE 5 | E 6 | E 5 | — | ESE 5 | E 5 | E 5 | ESE 4 | ESE 5 | S 7 | — | — | — | — |
17 | 13 | — | — | — | — | 23 | 80 | 19 | — | 49 | 36 | 15 | 5 | 7 | 27 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Sumbawa | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
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Information about the Nungas Surf forecast
The above surf forecast table for Nungas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nungas can be found by selecting the local surf guide option on the grey menu. Our Nungas 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 (Nungas) 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 Nungas 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 Sumbawa? If you are looking for accommodation near Nungas, camping, hotels and holiday cottages in Sumbawa, consider staying in Bima which is 52 km (32 miles) away. Alternatively, find information about places to stay and car hire in Raba which is 56 km (35 miles) away











