Surf Forecasts:
Nungas surf forecast from 13 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, 5AM (local time) - 10ft (3.0m), 17s period, SW swell with 4,715 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 5PM (local time) - 6.5ft (2.0m), 16s 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 Thursday (Aug 13) at 5PM. The primary swell is predicted to be 2.0m and 16s period. 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 5AM. Winds are predicted to be 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 Wednesday (Aug 19) at 5AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Thu 13th Aug) | 6.5ft (2.0m) 16s |
| Best Surf | 5PM (Wed 19th Aug) | 8ft (2.5m) 18s |
| Most Powerful | 5AM (Thu 20th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Nungas over the next 16 days.
The Lowdown
G’day, it’s Rusty here with a look at what’s on the cards at Nungas for the next couple of weeks.
We’ve got a solid run of surf ahead, kicking off Thursday, August 13th, and running all the way through, with only a little dip around Monday, August 17th. The water’s sitting at 80° – right on the money for this time of year, no standout anomaly.
The real highlight of the whole stretch is Wednesday, August 19th. We’re looking at a building 8ft to 8ft SSW groundswell, with a period of 18–19 seconds – that’s properly long, which suits a reef and point setup like Nungas beautifully. The energy’s pumping hard at 3790 to 4130 (strong). Winds are cross-off from the SSE and ESE at 9 mph, keeping the surface clean. This is top-tier, experienced surfer territory – too meaty for beginners at over 8ft. Thursday, August 20th pushes up to 10ft, but that’s more a push than a clean one; still great for experts, but the quality dips a touch.
From Thursday, August 13th, through the weekend of the 15th and 16th, we’re on a steady 6ft to 7ft SSW swell with a 15–17 second period. Winds are light and cross-off – very clean. Combined energy is strong (1949–2389). This is comfortable for intermediate to strong surfers, and a joy to be out there.
There’s a small lull on Monday, August 17th, with 5ft to 5ft swell, still clean but less punchy – a good day for a rest or a longboard if you’re keen.
Looking into the second week, Saturday, August 22nd, picks right back up with a 8ft to 8ft SW swell and cross-off breeze, strong energy (3142–3137). That’s another standout window for experienced crew. Then from Sunday, August 23rd onward, we hold 6ft to 8ft swells, mainly SW, with light to moderate cross-off winds. It’s consistent but not as pristine as that first week.
One thing to note – this break can get crowded sometimes, so get in early if you want a clean peak to yourself.
Overall, the first week and a half is very rewarding, but the absolute best is Wednesday, August 19th. Don’t sleep on it.
Rusty out.
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 23°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sun afternoon, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 16 | SW 16 | SW 16 | SW 19 | SSW 18 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2122 | 2136 | 2033 | 1788 | 1258 | 1087 | 2196 | 2377 | 2110 | 1899 | 1788 | 1356 | 1057 | 934 | 607 | 786 | 1523 | 1737 | 3778 | 4130 | 4554 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | 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 |
High Tide | 10:21AM3.00m | 11:08PM2.67m | 11:03AM3.06m | 11:39PM2.86m | 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 | |||||||
Low Tide | 4:55PM0.11m | 4:58AM0.54m | 5:27PM0.07m | 5:38AM0.39m | 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 | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — |
 | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 24 | 27 | 28 | 24 | 28 | 28 | 25 | 27 | 28 | 24 | 27 | 28 | 25 | 27 | 28 | 25 | 27 | 28 | 25 |
Feels °C | 28 | 28 | 26 | 29 | 29 | 27 | 30 | 30 | 28 | 28 | 30 | 27 | 28 | 30 | 28 | 28 | 30 | 28 | 28 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 16 | SW 16 | SW 16 | SW 19 | SSW 18 | SW 17 |
| kJ | 2122 | 2136 | 2033 | 1788 | 1258 | 1087 | 2196 | 2377 | 2110 | 1899 | 1788 | 1356 | 1057 | 934 | 607 | 786 | 1523 | 1737 | 3778 | 4130 | 4554 |
Swell 2 Height (m) Direction Period (s) | — | — | SSE 9 | SSE 7 | SSW 21 | SSW 19 | SSE 5 | SSE 6 | — | — | — | — | SSE 5 | SSW 24 | SSW 18 | SW 13 | SW 21 | SW 20 | SSE 6 | — | — |
| kJ | — | — | 50 | 43 | 305 | 774 | 15 | 12 | — | — | — | — | 11 | 57 | 214 | 400 | 865 | 881 | 12 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | SSW 24 | SW 22 | SE 7 | SE 4 | — | — | — | — | — | — | — | SSW 20 | SW 23 | SW 21 | — | SSE 6 | — | — | — |
| kJ | — | — | 54 | 118 | 22 | 9 | — | — | — | — | — | — | — | 38 | 264 | 664 | — | 22 | — | — | — |
Wind waves Height (m) Direction Period (s) | E 4 | E 5 | — | — | — | — | — | — | — | — | — | E 4 | ESE 4 | ESE 4 | E 4 | ESE 5 | ESE 5 | E 5 | ESE 5 | — | — |
| kJ | 13 | 11 | — | — | — | — | — | — | — | — | — | 10 | 16 | 18 | 14 | 25 | 15 | 47 | 37 | — | — |
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 | 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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