
Surf Forecasts:
Nungas surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 5PM (local time) - 5.5ft (1.7m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 8AM (local time) - 8ft (2.4m), 19s period, SSW swell with 3,943 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 5PM (local time) - 5.5ft (1.7m), 14s 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 Wednesday (Aug 12) at 5PM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 1.2m and 17s. 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 2.4m 19s and forecast to arrive on Wednesday (Aug 19) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Aug 17) at 5PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 12th Aug) | 5.5ft (1.7m) 14s |
| Best Surf | 5PM (Wed 12th Aug) | 5.5ft (1.7m) 14s |
| Most Powerful | 8AM (Wed 19th Aug) | 8ft (2.4m) 19s |
Table - best surf conditions forecast for Nungas over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s chew through what’s coming up.
We’ve got surf from the get-go, no waiting around. The whole 16-day stretch is active and clean, so you can plan on getting wet pretty much any day.
Water temp is sitting around 80°F, which is right on the money for this time of year – nothing out of the ordinary.
The spot is Nungas, a reef and point break that’s beginner-friendly. It breaks fairly consistently and is open to the swell. The swell direction is SSW, and that’s what this place loves.
Kicking off Wednesday the 12th, we’re looking at a 7ft SSW swell with a 14-second period. Winds are cross-off from the ESE and SSE at around 9-10 mph, keeping the surface glassy. The combined energy is big – up there in the strong range. It’s excellent for experienced surfers, but at over 5ft, beginners might want to sit this one out.
Thursday the 13th sees the swell holding around 6ft to 7ft with the period stretching out to 17 seconds. That’s proper groundswell, and on a point break that’s a treat. The energy stays strong.
Friday and Saturday repeat the formula: clean, cross-off wind, 6ft to 7ft waves, long periods. It’s a surfer’s paradise if you’ve got the skills.
The standout moment? I’m calling it for Monday the 24th of August. We’ve got a 8ft SSW swell with a 17-second period, and the wind is cross-off from the ESE at 9 mph. The energy number is a massive 4323 – that’s very strong. The point will handle that long period like a dream, and it’ll be big, powerful, and clean. Only for the experienced crew.
Before that, things ramp up again mid-week. Wednesday the 19th pushes to 8ft SW, and by Thursday the 20th we’re looking at 10ft SW swells. That’s expert-only territory. The wind stays cross-off but picks up to a moderate breeze. At that size, the setup here might actually be more fun for kite surfing than paddle surfing.
From the 21st onward, we settle into a nice groove. Swells range from 6ft to 8ft, mostly SSW with periods of 14-17 seconds. Winds stay light and cross-off, making for clean conditions all the way through the 27th. The second week is solid, just a bit more relaxed in size.
Bottom line: surf is on for the whole 16 days. The top pick is the 24th for the big, long-period groundswell. Beginners should look at the smaller days around the 17th and 18th.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed morning, min 23°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 14 | SSW 14 | SSW 16 | 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 | SSW 16 | SW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||
1600 | 1189 | 768 | 1907 | 2241 | 2219 | 1788 | 1258 | 1087 | 2196 | 2377 | 2110 | 1982 | 1788 | 1356 | 1072 | 934 | 607 | 897 | 1672 | 2084 | |
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 | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 9:33AM2.85m | 10:34PM2.43m | 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 | |||||||
Low Tide | 4:19PM0.23m | 4:14AM0.76m | 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 | ||||||||
6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | |
— | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 24 | 26 | 27 | 23 | 27 | 27 | 24 | 27 | 28 | 24 | 27 | 28 | 24 | 27 | 28 | 24 | 28 | 28 | 24 |
Feels °C | 28 | 27 | 26 | 28 | 29 | 25 | 29 | 28 | 27 | 29 | 30 | 27 | 29 | 30 | 27 | 29 | 30 | 27 | 30 | 30 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | 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 | SSW 16 | SW 16 | SSW 16 |
1600 | 1189 | 643 | 1907 | 2241 | 2219 | 1788 | 1258 | 1087 | 2196 | 2377 | 2110 | 1982 | 1788 | 1356 | 1072 | 934 | 607 | 897 | 1672 | 2084 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SSW 17 | SSW 16 | — | — | SSW 24 | SSE 7 | SSE 7 | SSW 19 | SSE 5 | — | — | — | — | — | — | SSW 20 | SW 18 | SW 13 | SW 21 | SW 20 |
895 | 771 | 768 | — | — | 54 | 43 | 35 | 774 | 13 | — | — | — | — | — | — | 38 | 327 | 509 | 856 | 881 | |
Swell 3 Height (m) Direction Period (s) | — | — | E 5 | — | — | SSW 24 | SW 22 | SSW 21 | — | — | — | — | — | — | — | — | SSW 24 | SW 24 | SW 21 | — | — |
— | — | 11 | — | — | 54 | 118 | 305 | — | — | — | — | — | — | — | — | 56 | 141 | 742 | — | — | |
Wind waves Height (m) Direction Period (s) | SSE 5 | — | — | E 5 | — | — | — | — | SSE 4 | — | SSE 6 | — | — | — | E 4 | ESE 4 | E 4 | E 4 | ESE 5 | E 4 | — |
15 | — | — | 7 | — | — | — | — | 9 | — | 18 | — | — | — | 10 | 14 | 21 | 6 | 22 | 16 | — | |
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











