
Surf Forecasts:
Nungas surf forecast from 11 Sep 2026:
- Best quality surf: Saturday 12 Sep, 8AM (local time) - 5ft (1.6m), 15s period, SW swell with offshore winds.
- Most powerful swell: Sunday 13 Sep, 5PM (local time) - 7.5ft (2.3m), 18s period, SW swell with 3,297 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 8AM (local time) - 5ft (1.6m), 15s 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 (Sep 12) at 8AM. The primary swell is predicted to be 1.6m and 15s period with a secondary swell of 0.5m and 22s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nungas in the next 16 days are 2.3m 18s and forecast to arrive on Sunday (Sep 13) at 5PM. 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 Monday (Sep 14) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 12th Sep) | 5ft (1.6m) 15s |
| Best Surf | 8AM (Sat 12th Sep) | 5ft (1.6m) 15s |
| Most Powerful | 5PM (Sun 13th Sep) | 7.5ft (2.3m) 18s |
Table - best surf conditions forecast for Nungas over the next 16 days.
The Lowdown
Right. Let’s talk about Nungas.
We’ve got a stretch of solid, consistent SW groundswell running from 12 September through to the end of the month. This is a reef-and-point setup, fairly exposed to the swell, and the direction is bang on the optimum from the southwest. The water temp is sitting at about 80°F, which is dead average for this time of year – no surprises there.
The whole run is characterised by cross-off winds, mainly from the SE and SSE, keeping things clean. It's not glassy offshore, but it's steady cross-off, and that’s good news. The swell hangs around the 5ft to 8ft range for most of the period, with periods between 14 and 18 seconds – that’s proper long-period groundswell, so expect power, shape, and those longer lulls between sets. This sort of swell loves a point and reef setup like Nungas; it won't just close out.
The standout is the weekend of 20 and 21 September. On Sunday the 20th, we’ve got 8ft from the SW at 16 seconds, light SE breezes in the morning, combined wave energy hitting 2580 (strong). The afternoon holds solid at 8ft with 2653 energy. Monday the 21st follows up with 7ft at 15 seconds, still light winds. This is the pick of the whole forecast – powerful, clean, and consistent for experienced surfers. If you want the best of the best, that’s your window.
The earlier weekend, 12/13 September, has its moments too – Saturday the 12th sees 5ft at 15 seconds, with energy readings of 1688 (moderate). It’s good, but the later pulse is stronger and more lined up. The midweek from 14-17 September is still surfable, with chest to head-high sets, but the quality drops a notch with moderate breezes and some marginal tide windows. Still, it’s far from flat.
Toward the end of the month, around 23-24 September, the swell swings more SSW with periods of 15-16 seconds, energy around 1214 – still solid, just a slight shift in direction. The last few days of the month see the size back off to 5ft, but consistent and clean under light winds.
The whole period is remarkably consistent. No real gaps – just waves day after day. If you’re a beginner, be mindful: anything over about 5ft here is pushing it, and by the 20th with 8ft, only experienced surfers should be out.
Crowds are possible at Nungas, as it’s a spot that gets attention, especially on the weekends. On the standout days, expect company.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sat morning, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 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) | SW 15 | SW 14 | SW 20 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||||
1124 | 1006 | 1350 | 1871 | 3297 | 2220 | 1919 | 1764 | 1581 | 1520 | 1730 | 1493 | 1343 | 1340 | 1576 | 1554 | 1533 | 1285 | 1089 | 920 | 451 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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-off | off | cross-off | cross-off | glassy |
High Tide | 10:50AM2.94m | 11:08PM3.05m | 11:23AM2.91m | 11:35PM3.12m | 11:54AM2.80m | 00:01AM3.11m | 12:24PM2.64m | 00:27AM3.02m | 12:51PM2.43m | 00:52AM2.87m | 1:18PM2.20m | 1:17AM2.67m | 1:43PM1.96m | 1:42AM2.44m | |||||||
Low Tide | 4:58PM0.22m | 5:19AM0.19m | 5:26PM0.25m | 5:51AM0.14m | 5:51PM0.33m | 6:22AM0.18m | 6:16PM0.45m | 6:52AM0.30m | 6:39PM0.61m | 7:22AM0.48m | 7:01PM0.79m | 7:54AM0.70m | 7:20PM0.98m | ||||||||
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:01 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 26 | 29 | 29 | 25 | 28 | 29 | 25 | 28 | 28 | 25 | 28 | 29 | 25 | 28 | 29 | 25 | 29 | 29 | 26 |
Feels °C | 31 | 30 | 29 | 31 | 28 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 30 | 30 | 28 | 30 | 29 | 29 | 32 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 15 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 13 |
1124 | 1006 | 869 | 1871 | 3297 | 2220 | 1919 | 1764 | 1581 | 1520 | 1730 | 1493 | 1343 | 1340 | 1576 | 1554 | 1533 | 1285 | 1089 | 920 | 451 | |
Swell 2 Height (m) Direction Period (s) | SW 22 | SW 21 | SW 20 | SSW 14 | SSW 14 | SSE 7 | S 5 | — | SE 6 | SSE 5 | — | SE 5 | S 5 | SSW 21 | SSE 7 | S 5 | ESE 7 | — | SSE 5 | SW 21 | SW 16 |
553 | 647 | 1350 | 691 | 789 | 76 | 14 | — | 39 | 9 | — | 28 | 14 | 45 | 25 | 14 | 4 | — | 5 | 18 | 406 | |
Swell 3 Height (m) Direction Period (s) | SSE 5 | SSE 6 | SE 6 | SE 5 | — | E 6 | — | — | — | — | — | SW 24 | SSW 22 | — | SSW 6 | ENE 5 | — | — | SW 22 | — | SW 20 |
11 | 4 | 33 | 18 | — | 40 | — | — | — | — | — | 22 | 45 | — | 3 | 7 | — | — | 18 | — | 98 | |
Wind waves Height (m) Direction Period (s) | ESE 5 | E 4 | — | — | — | ESE 6 | E 5 | ESE 6 | ESE 6 | ESE 5 | — | SE 5 | E 5 | SE 4 | E 6 | E 5 | ESE 5 | E 6 | E 5 | E 4 | — |
28 | 30 | — | — | — | 106 | 25 | 65 | 47 | 8 | — | 21 | 11 | 16 | 64 | 17 | 15 | 85 | 16 | 8 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 117 | 0 | 0 | 0 | 0 | 117 | 0 | 0 | 0 | 173 | 0 | 0 | 117 | 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










