Surf Forecasts:
Nungas surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 2AM (local time) - 4.5ft (1.3m), 20s 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★+): Sunday 13 Sep, 2AM (local time) - 4.5ft (1.3m), 20s 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 Sunday (Sep 13) at 2AM. The primary swell is predicted to be 1.3m and 20s period with a secondary swell of 1.4m and 14s. 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+) | 2AM (Sun 13th Sep) | 4.5ft (1.3m) 20s |
| Best Surf | 2AM (Sun 13th Sep) | 4.5ft (1.3m) 20s |
| 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
Alright, Rusty here. Let’s break it down for you in feet and miles.
We’ve got just one spot firing, and it’s looking like a solid run.
Nungas (reef and point) is the place. The pattern is consistent, with good groundswell from the SW and clean conditions more often than not. Water temp is about what you’d expect for this time of year.
Starting Sunday (13th September) we see a 6ft SW groundswell with a very long 18-second period. Combined energy is 2603 (moderate/strong). It’s clean with a cross-off breeze. Monday is similar, 6ft and 16 seconds. Both days are marginal on tide, so watch the water level.
Tuesday morning (15th September) is the first real standout: 6ft SW, 15 seconds, clean, and excellent for experienced surfers. Thursday offers 6ft to 7ft SSW.
But the big one is Friday 25th September afternoon. 8ft of SSW groundswell, 18-second period, combined energy 4041 (very strong). Clean with a gentle cross-off. That’s the biggest and best of the run, and it’s built for the reef. Saturday (26th) and Sunday (27th) keep up the quality. Sunday morning has near-glass with only a slight air, making for silky conditions.
This reef and point loves that long-period groundswell—won’t break straight like a beachie. Crowds are “sometimes”, so expect some company on the best days.
Overall, consistent swell all the way through. If you’re picking one, make it Friday 25th afternoon or the glassy Sunday 27th morning.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 29°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Thu afternoon, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 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 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 1350 | 1871 | 3297 | 2220 | 1787 | 1764 | 1456 | 1520 | 1581 | 1493 | 1254 | 1220 | 1446 | 1554 | 1724 | 1303 | 1105 | 920 | 411 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | glassy |
High Tide | 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 | 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 | — | — | 6:00 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — |
 | 6:02 | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:01 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 28 | 29 | 25 | 28 | 29 | 25 | 28 | 27 | 25 | 28 | 28 | 25 | 28 | 29 | 25 | 29 | 29 | 26 |
Feels °C | 28 | 29 | 28 | 28 | 29 | 30 | 28 | 30 | 27 | 28 | 30 | 29 | 29 | 30 | 29 | 29 | 32 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 14 | 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 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 13 |
| kJ | 857 | 1871 | 3297 | 2220 | 1787 | 1764 | 1456 | 1520 | 1581 | 1493 | 1254 | 1220 | 1446 | 1554 | 1724 | 1303 | 1105 | 920 | 388 |
Swell 2 Height (m) Direction Period (s) | SW 20 | SSW 14 | SSW 14 | SSE 6 | S 5 | E 6 | SSE 6 | SSE 5 | SSE 5 | SSE 5 | S 5 | SSW 21 | SSW 6 | SSE 5 | ESE 7 | — | SW 22 | SW 21 | SW 16 |
| kJ | 1350 | 732 | 691 | 74 | 13 | 62 | 23 | 9 | 14 | 23 | 8 | 45 | 7 | 9 | 15 | — | 18 | 18 | 411 |
Swell 3 Height (m) Direction Period (s) | — | — | — | ENE 6 | — | — | — | — | — | SW 24 | SSW 22 | SSW 21 | SE 6 | E 5 | — | — | SW 22 | — | SSW 7 |
| kJ | — | — | — | 42 | — | — | — | — | — | 22 | 45 | 45 | 39 | 10 | — | — | 18 | — | 18 |
Wind waves Height (m) Direction Period (s) | — | E 5 | — | ESE 6 | E 5 | — | E 6 | E 5 | — | E 6 | E 5 | SSE 5 | ESE 6 | E 5 | — | ESE 6 | ESE 5 | E 4 | ESE 6 |
| kJ | — | 15 | — | 106 | 29 | — | 40 | 12 | — | 6 | 11 | 20 | 87 | 11 | — | 55 | 19 | 8 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 117 | 0 | 0 | 117 | 0 | 0 | 0 | 0 | 0 | 173 | 0 | 0 | 173 | 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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