Surf Forecasts:
Scar Reef surf forecast from 27 Aug 2026:
- Best quality surf: Thursday 27 Aug, 8PM (local time) - 4.5ft (1.3m), 20s period, SW swell with offshore winds.
- Most powerful swell: Friday 28 Aug, 8AM (local time) - 8ft (2.5m), 17s period, SW swell with 4,161 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 8PM (local time) - 4.5ft (1.3m), 20s period with SW 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 Thursday (Aug 27) at 8PM. The primary swell is predicted to be 1.7m and 15s period with a secondary swell of 1.3m and 20s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Scar Reef in the next 16 days are 2.5m 17s and forecast to arrive on Friday (Aug 28) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Tuesday (Sep 01) at 5PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 27th Aug) | 4.5ft (1.3m) 20s |
| Best Surf | 8PM (Thu 27th Aug) | 4.5ft (1.3m) 20s |
| Most Powerful | 8AM (Fri 28th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Scar Reef over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
We've got a solid run of surf on the cards at Scar Reef, a reef and point setup that's going to be the main event for the next couple of weeks. The water is sitting at 80°, which is spot on for this time of year, so no need for a thick wetsuit.
The action kicks off on Thursday, the 27th of August. We're looking at clean, cross-offshore winds, with a 4ft SW groundswell rolling in at a 16-second period. That's a long-period groundswell, and at a point break like this, it's going to shape up nicely. The combined energy is sitting at 1140, which is a moderate energy level, but with that period, the waves will have plenty of push. It's a solid start.
Friday, the 28th, is where things get interesting. The swell jumps to 8ft from the SW, with a 17-second period. The energy is pumping at 3907. This is serious stuff - excellent conditions for experienced surfers only. The winds stay light and cross-off, keeping it clean. If you've got the skills, this is the standout day.
The weekend holds a good 6ft to 6ft SW swell, still with that long period, and the winds are light. Saturday and Sunday both look really good, with the energy dropping but still solid. The waves will be well-formed and clean.
We cruise into the next week with a dip in size on Monday the 31st, but the periods are still long, and the energy is moderate. Then Tuesday, the 1st of September, the swell bumps back up to 7ft from the SW. This is another excellent window for experienced surfers, with the energy hitting 2646. That pattern holds through Wednesday the 2nd.
The 7th and 8th of September are looking strong again. The 7th brings a 8ft SSW swell with 14-second period, energy at 2152. Conditions are clean and light. Then we get another pulse on the 10th of September with a 7ft SSW swell, 16-second period, and energy at 2568. That's a Thursday morning standout, with light winds.
Overall, this is a consistent, high-quality run. The best bets are the Friday the 28th for the biggest swell, and the morning of the 10th of September for another powerful, clean session. Just remember, the bigger days are for the advanced crew. Get out there and enjoy it.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 22°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Tue afternoon, min 22°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 20 | SSW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 769 | 3535 | 3877 | 3197 | 2594 | 1641 | 1237 | 1002 | 721 | 700 | 730 | 989 | 1501 | 2150 | 2813 | 2324 | 2592 | 2275 | 2053 | 1532 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | off | cross-off | cross-off | off | glassy | cross-off | off | off | off | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 11:27PM1.27m | 10:37AM1.64m | 11:42PM1.36m | 11:13AM1.62m | 11:59PM1.44m | 11:49AM1.55m | 00:19AM1.52m | 12:26PM1.43m | 00:41AM1.59m | 1:06PM1.29m | 1:06AM1.63m | 1:50PM1.11m | 1:36AM1.65m | |||||||
Low Tide | 5:07PM0.20m | 4:38AM0.72m | 5:28PM0.23m | 5:13AM0.62m | 5:48PM0.29m | 5:49AM0.53m | 6:07PM0.37m | 6:27AM0.46m | 6:25PM0.46m | 7:08AM0.41m | 6:41PM0.55m | 7:54AM0.39m | 6:56PM0.64m | |||||||
 |  | | | | | | | | | | | | | | | | | | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — |
 | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 24 | 25 | 26 | 25 | 25 | 26 | 25 | 27 | 27 | 25 | 27 | 27 | 24 | 27 | 28 | 25 | 27 | 28 | 24 |
Feels °C | 26 | 26 | 26 | 26 | 28 | 26 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 26 | 29 | 29 | 28 | 28 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 |
| kJ | 510 | 3535 | 3877 | 3197 | 2594 | 1641 | 1237 | 1002 | 721 | 700 | 449 | 989 | 1501 | 2150 | 2813 | 2324 | 2592 | 2275 | 2053 | 1532 |
Swell 2 Height (m) Direction Period (s) | SW 15 | — | SE 6 | — | SE 5 | SE 5 | SE 6 | S 6 | SSE 5 | SE 6 | SW 19 | SW 12 | SSW 12 | SSW 11 | SE 6 | SE 6 | SE 5 | SE 6 | — | — |
| kJ | 523 | — | 30 | — | 20 | 10 | 15 | 2 | 19 | 38 | 730 | 330 | 239 | 135 | 40 | 50 | 22 | 32 | — | — |
Swell 3 Height (m) Direction Period (s) | SW 20 | — | — | — | — | SSW 6 | S 6 | SSW 24 | SW 21 | SSW 21 | SE 5 | SE 5 | SE 5 | — | — | — | — | — | — | — |
| kJ | 769 | — | — | — | — | 11 | 6 | 54 | 224 | 302 | 13 | 12 | 22 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | — | SE 6 | — | SE 6 | SE 6 | SE 5 | ESE 5 | ESE 6 | SE 5 | ESE 5 | SE 6 | SE 5 | ESE 6 | SE 6 | SE 5 | SE 6 | SSE 5 | SE 5 |
| kJ | 25 | 34 | — | 38 | — | 40 | 46 | 9 | 49 | 84 | 36 | 39 | 59 | 15 | 109 | 123 | 74 | 91 | 49 | 25 |
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 |
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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