Surf Forecasts:
Nungas surf forecast from 21 Aug 2026:
- Best quality surf: Friday 28 Aug, 5AM (local time) - 8ft (2.5m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 11AM (local time) - 10ft (3.0m), 17s period, SW swell with 4,939 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 8PM (local time) - 8ft (2.4m), 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 Friday (Aug 21) at 8PM. The primary swell is predicted to be 2.4m and 17s 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 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 1.3m 6s period and expected on Tuesday (Aug 25) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 21st Aug) | 8ft (2.4m) 17s |
| 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, Rusty here again, but this time in feet and miles per hour. We’ve got a solid run of surf shaping up for Nungas, with a real standout session that’s going to have the locals buzzing. The water temp is sitting about average for this time of year at 79°F, so no surprises there.
The first building pulse arrives Friday, August 21st. It’s a solid 8ft SSW swell, with a clean 17-second period that’s packing some serious grunt—the combined energy is a beefy 3473 (moderate to strong). The wind is a gentle cross-offshore breeze at 9 mph, so the reef and point setup at Nungas is going to be clean and organised. This is proper groundswell, and with that long period, the waves will have real shape and power, but it’s a spot that handles it well. This one’s for the experienced crew; beginners might want to sit this one out as it’s over 8ft by the 28th, hitting 10ft (SW, 17-second period, energy at 4939). That Friday the 28th morning session is the clear standout of the whole run—big, powerful, and clean. Crowds are a possibility at Nungas, so get in early.
The quality holds through the weekend and into the following week, with waves staying in the 6ft to 7ft range, with that same clean cross-offshore wind. The swell direction holds steady from the SSW to SW, which is right in the sweet spot for this break. There’s a minor dip around the 25th and 26th with sizes dropping to 5ft, but it’s still clean and rideable. The period stays solid, generally between 14 and 17 seconds, so the energy is there.
By August 31st, the swell drops right off to under 3ft, and the period stretches out to 18 seconds—very long period, but small. The conditions are still glassy with light winds at 6 mph, and the energy is low (758). It’s more of a longboard or grovel session.
Then we see another push come Tuesday, September 1st, with a 5ft to 6ft SW swell and a 16 to 17-second period. The energy jumps back up to 2682, and with light breezes, it’s clean again. This run builds into Wednesday, September 2nd with a 8ft SW swell, 18-second period, and energy hitting 3507. Another excellent window for experienced surfers, with the same clean cross-offshore wind. This second pulse is a promising long-range call, but it’s a fair way out, so keep an eye on it.
The waves ease back to 5ft to 6ft through the 4th and 5th of September, still clean, but the energy drops off gradually. The run finishes with the swell fading and the wind turning a bit more cross-shore, but overall, this is a great stretch of surf for Nungas.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 22°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Tue afternoon, min 23°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 15 | SSW 14 | SW 16 | SW 15 | SSW 14 | SSW 14 | SW 13 | SSW 16 | SSW 22 | SW 19 |
Wave Graph | ||||||||||||||||||||
3473 | 2727 | 2900 | 2472 | 2016 | 1809 | 1797 | 1488 | 2016 | 1856 | 1453 | 763 | 1449 | 1254 | 1126 | 1080 | 711 | 1373 | 807 | 2325 | |
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 | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross | cross-off |
High Tide | 3:00PM1.67m | 3:16AM2.22m | 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 | |||||||
Low Tide | 8:22PM1.18m | 10:48AM1.19m | 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 | |||||||
— | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 24 | 26 | 28 | 23 | 26 | 27 | 24 | 27 | 27 | 24 | 26 | 28 | 24 | 27 | 28 | 24 | 27 | 27 | 25 |
Feels °C | 28 | 25 | 27 | 28 | 25 | 27 | 27 | 27 | 28 | 27 | 26 | 26 | 28 | 26 | 28 | 29 | 26 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SW 15 | SSW 14 | SW 16 | SW 15 | SSW 14 | SSW 14 | SW 13 | SSW 16 | SW 15 | SW 19 |
3473 | 2727 | 2900 | 2472 | 2016 | 1809 | 1797 | 1488 | 2016 | 1856 | 1453 | 763 | 1449 | 1254 | 1126 | 1080 | 711 | 1373 | 581 | 2325 | |
Swell 2 Height (m) Direction Period (s) | — | SE 6 | — | S 26 | SSW 24 | SSW 21 | SSW 20 | SSW 18 | ESE 5 | SW 20 | S 5 | SW 17 | SSW 6 | E 6 | S 21 | SW 20 | SW 18 | E 5 | SW 12 | SW 15 |
— | 39 | — | 13 | 54 | 297 | 790 | 835 | 15 | 60 | 4 | 358 | 11 | 22 | 9 | 97 | 316 | 12 | 341 | 1059 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SSW 24 | ESE 4 | — | SSE 5 | E 5 | — | E 6 | SSW 6 | S 6 | — | S 21 | SW 20 | S 7 | SW 23 | SSW 22 | SSE 5 |
— | — | — | — | 54 | 12 | — | 17 | 7 | — | 32 | 3 | 15 | — | 9 | 97 | 53 | 135 | 807 | 26 | |
Wind waves Height (m) Direction Period (s) | — | ESE 6 | — | — | — | — | — | E 5 | — | SE 5 | ESE 6 | ESE 5 | E 5 | ESE 5 | E 5 | ESE 4 | — | — | — | — |
— | 81 | — | — | — | — | — | 23 | — | 23 | 95 | 33 | 33 | 51 | 18 | 12 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 173 | 0 | 0 | 0 | 0 | 0 | 324 | 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











