Surf Forecasts:
Scar Reef surf forecast from 3 Aug 2026:
- Best quality surf: Thursday 6 Aug, 2AM (local time) - 6ft (1.9m), 19s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 8 Aug, 2AM (local time) - 8ft (2.5m), 16s period, SSW swell with 3,751 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 5PM (local time) - 5.5ft (1.7m), 15s period with SSW swell.
Best Forecast Surf Conditions for Scar Reef this week:
The surf forecast for Scar Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 03) at 5PM. The primary swell is predicted to be 1.7m and 15s period with a secondary swell of 1.0m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Scar Reef in the next 16 days are 2.5m 16s and forecast to arrive on Saturday (Aug 08) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Monday (Aug 03) at 5PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Mon 3rd Aug) | 5.5ft (1.7m) 15s |
| Best Surf | 2AM (Thu 6th Aug) | 6ft (1.9m) 19s |
| Most Powerful | 2AM (Sat 8th Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Scar Reef over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s coming.
We’ve got a solid stretch of surf starting Monday the 3rd of August. Water temp is 80°, right where it should be for this time of year.
The main spot is Scar Reef, a reef and point that breaks fairly consistently. Monday morning kicks off with a clean 6ft swell from the SSW, a 15-second period, and a light cross-off breeze. The combined energy is strong at 1370. That’s a proper groundswell. Tuesday the 4th is glassy, with a 5ft to 6ft SSW swell. That’s the kind of morning you don’t miss.
By Thursday the 6th, the swell pushes to 7ft, period 17 seconds, and offshore winds lock in. Energy hits 2488. That’s excellent for experienced surfers. Friday the 7th and Saturday the 8th hold 8ft to 8ft, clean offshores, and energy over 3000. Crowds are possible here. Sunday the 9th is still strong at 7ft, offshores and clean.
Monday the 10th, the morning eases to 5ft but the period is a massive 19 seconds, with energy at 3137. By the afternoon, it’s back up to 8ft with 18 seconds. Wind picks up a little, but still clean.
The absolute standout is Thursday the 13th of August. Flat calm, glassy, no wind, and a solid 8ft SSW swell at 18 seconds. Energy is 4239. That’s a heavy, powerful groundswell with perfect conditions. Experts only at that size, but it’s a dream.
There’s a bit of a lull around the 15th and 16th, with the swell dropping to 3ft to 6ft and wind up to 12-15 mph, still offshore. Then it builds again into the 17th and 18th. Tuesday the 18th brings back the 8ft size with light wind and clean conditions.
No real gaps – surf from the 3rd all the way through. The one to circle is the 13th. That Thursday morning is the pick of the bunch.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 15 | SW 15 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1297 | 1279 | 1117 | 1072 | 1049 | 607 | 1045 | 1088 | 2493 | 2434 | 2376 | 2178 | 2975 | 3444 | 3751 | 2936 | 2697 | 2359 | 2151 | 1997 | 1716 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | glassy | glassy | off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | cross-off |
High Tide | 1:10PM1.40m | 2:02AM1.45m | 1:52PM1.23m | 2:31AM1.50m | 2:45PM1.05m | 3:06AM1.53m | 4:13PM0.87m | 3:54AM1.55m | 5:03AM1.57m | 6:28AM1.62m | |||||||||||
Low Tide | 7:31PM0.43m | 8:10AM0.64m | 7:49PM0.54m | 9:09AM0.61m | 8:04PM0.64m | 10:29AM0.57m | 8:13PM0.74m | 12:24PM0.49m | 2:10PM0.34m | 3:14PM0.19m | |||||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 28 | 24 | 27 | 27 | 25 | 26 | 26 | 24 | 27 | 27 | 24 | 27 | 27 | 24 |
Feels °C | 28 | 28 | 28 | 29 | 30 | 28 | 27 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 26 | 28 | 27 | 25 | 28 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 15 | SW 15 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
| kJ | 1297 | 1279 | 1117 | 1072 | 1049 | 607 | 1045 | 1088 | 2493 | 2434 | 2376 | 2178 | 2975 | 3444 | 3751 | 2936 | 2697 | 2359 | 2151 | 1997 | 1716 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SE 6 | SW 16 | SE 6 | SW 20 | SE 6 | SE 7 | — | SE 6 | SE 7 | — | — | SE 6 | — | — | SE 6 | — | SSW 20 |
| kJ | 73 | 84 | 71 | 47 | 51 | 527 | 18 | 428 | 24 | 54 | — | 42 | 43 | — | — | 54 | — | — | 47 | — | 160 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 24 | SSW 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 26 |
| kJ | — | — | — | — | — | 22 | 183 | — | — | — | — | — | — | — | — | — | — | — | — | — | 26 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 7 | SE 6 | ESE 6 | ESE 6 | SE 6 | SE 6 | ESE 6 | SE 5 | SE 5 | ESE 6 | SE 5 | SE 5 |
| kJ | 228 | 229 | 183 | 163 | 131 | 32 | 62 | 54 | 72 | 170 | 56 | 120 | 130 | 44 | 77 | 141 | 57 | 27 | 116 | 49 | 19 |
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 Scar Reef Surf forecast
The above surf forecast table for Scar Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Scar Reef can be found by selecting the local surf guide option on the grey menu. Our Scar Reef 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 (Scar Reef) 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 Scar Reef 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.
Scar Reef is 55 km (34 miles) from the city of Praya. If you plan a holiday in Sumbawa, look for hotels and other accommodation in Praya. Praya has rooms for a wide range of budgets as well as car hire and transport links.
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