Surf Forecasts:
Nungas surf forecast from 15 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 5PM (local time) - 8ft (2.5m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 17s period, SW swell with 4,800 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 11AM (local time) - 6ft (1.9m), 17s period with SSW 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 15) at 11AM. The primary swell is predicted to be 1.9m and 17s period with a secondary swell of 0.5m and 5s. 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 Thursday (Aug 20) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Aug 22) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sat 15th Aug) | 6ft (1.9m) 17s |
| Best Surf | 5PM (Wed 19th Aug) | 8ft (2.5m) 18s |
| Most Powerful | 2AM (Thu 20th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Nungas over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid run of surf lining up at Nungas, a reef and point setup that’s fairly consistent and pretty exposed to the swell. The water’s sitting at about 80°F, which is about average for this time of year. The whole 16-day window is filled with surf, so no gaps to worry about.
The pattern kicks off from Saturday the 15th of August and doesn’t let up. The first few days bring a strong groundswell from the SSW – around 6ft to 7ft with a 17-second period, carrying a lot of energy. The wind’s a gentle cross-off from the ESE to SSE, keeping things clean. This is a big, powerful swell for the more experienced crew – it’s over 5ft, so beginners might want to sit this one out. The real standout, though, is Wednesday the 19th of August. We see a jump in swell height to 8ft from a slightly more SW direction, with an 18-second period and strong energy. The wind stays light and cross-off. That’s the pick of the early window for seasoned surfers.
Through the rest of the first week and into the second, the swell dips a little but stays rideable. By Tuesday the 25th of August we’re still seeing 6ft SSW swell with 16-second period and good energy, and cross-off winds keep it clean. The long-period nature of these swells means they’ll set up nicely on the reef and point at Nungas, with longer lulls between sets making the paddle out a bit easier.
Looking further out to the weekend of the 29th and 30th of August, there’s a promising pulse of SW swell building again – up to 7ft with a 17-second period and energy climbing back up. Winds stay light, so it’s shaping up as another strong day for experienced surfers, though it’s a week and a half away so keep an eye on it.
The direction is mostly SSW to SW, which lines up nicely with the optimum swell direction. Crowds can be a thing here sometimes, so it’s worth getting out early, especially on the bigger days. This is a solid outlook for Nungas.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Tue morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SW 16 | SSW 16 | SW 19 | SSW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2196 | 2377 | 2110 | 1982 | 1788 | 1356 | 1057 | 934 | 690 | 726 | 1693 | 1787 | 3819 | 4177 | 4800 | 4420 | 3808 | 2905 | 2130 | 1450 | 2468 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 11:42AM3.02m | 00:10AM2.97m | 12:17PM2.90m | 00:40AM3.00m | 12:51PM2.71m | 1:09AM2.95m | 1:23PM2.47m | 1:38AM2.82m | 1:54PM2.20m | 2:06AM2.64m | 2:24PM1.94m | 2:36AM2.43m | 3:00PM1.67m | 3:16AM2.22m | |||||||
Low Tide | 5:58PM0.11m | 6:16AM0.33m | 6:27PM0.21m | 6:52AM0.36m | 6:54PM0.37m | 7:27AM0.45m | 7:19PM0.55m | 8:02AM0.61m | 7:43PM0.75m | 8:39AM0.81m | 8:04PM0.96m | 9:26AM1.02m | 8:22PM1.18m | ||||||||
 |  |  | | | | | |  | | | | | | | | | | | | | |
 | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 24 | 27 | 28 | 24 | 28 | 28 | 24 | 28 | 28 | 25 | 27 | 28 | 25 | 27 | 28 | 24 | 27 | 28 | 24 |
Feels °C | 28 | 29 | 27 | 28 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 28 | 29 | 30 | 27 | 28 | 29 | 26 | 28 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SW 16 | SSW 16 | SW 19 | SSW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 |
| kJ | 2196 | 2377 | 2110 | 1982 | 1788 | 1356 | 1057 | 934 | 690 | 726 | 1693 | 1787 | 3819 | 4177 | 4800 | 4420 | 3808 | 2905 | 2130 | 1450 | 2468 |
Swell 2 Height (m) Direction Period (s) | SSE 5 | — | — | — | — | — | SSE 5 | SSW 20 | SSW 18 | SW 13 | SW 21 | SW 20 | — | — | — | — | — | SE 6 | E 5 | SW 14 | SSE 6 |
| kJ | 17 | — | — | — | — | — | 5 | 38 | 214 | 444 | 756 | 881 | — | — | — | — | — | 43 | 11 | 865 | 51 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 24 | SW 23 | SW 21 | SE 6 | — | — | — | — | — | — | — | SSE 6 | — | — |
| kJ | — | — | — | — | — | — | — | 57 | 264 | 658 | 9 | — | — | — | — | — | — | — | 13 | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 5 | — | — | — | ESE 5 | E 4 | ESE 4 | ESE 4 | ESE 5 | E 4 | E 4 | ESE 5 | E 5 | ESE 6 | — | — | ESE 5 | ESE 5 | ESE 4 | ESE 5 |
| kJ | — | 23 | — | — | — | 14 | 18 | 14 | 12 | 28 | 18 | 9 | 22 | 27 | 45 | — | — | 62 | 31 | 11 | 75 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 117 | 0 | 0 | 0 | 173 | 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
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