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Scar Reef surfForecast / Sumbawa / Indonesia
12 Day Weather and Surf, issued 1 am Wednesday 16 Jul 2025 WITA
Best Forecast Surf Conditions for Scar Reef this week:
The surf forecast for Scar Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 16) at 8AM. The primary swell is predicted to be 1.4m and 13s period with a secondary swell of 0.2m and 22s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Scar Reef in the next 12 days are 3.0m 19s and forecast to arrive on Saturday (Jul 19) 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 1.1m 5s period and expected on Wednesday (Jul 16) at 8PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 16th Jul) | 4.5ft (1.4m) 13s |
| Best Surf | 2AM (Sat 19th Jul) | 10ft (3.0m) 19s |
| Most Powerful | 2AM (Sat 19th Jul) | 10ft (3.0m) 19s |
Table - best surf conditions forecast for Scar Reef over the next 12 days.
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 13 | 13 | 20 | 19 | 18 | 19 | 17 | 17 | 16 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 14 | 13 | 12 | 12 | 11 | 19 | 18 | 14 | 16 | 16 | 15 | 15 | 15 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 734 | 877 | 1349 | 1933 | 2768 | 5535 | 5444 | 5454 | 6092 | 5330 | 5029 | 4136 | 4447 | 3681 | 3336 | 2329 | 1860 | 1479 | 1106 | 781 | 695 | 641 | 1181 | 1179 | 832 | 776 | 651 | 907 | 1611 | 2273 | 2510 | 2285 | 1887 | 2025 | 2273 | 2508 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | cross- off | cross- 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- off | off | cross- off | off | cross- off | cross- off | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | off |
High Tide / height (m) | 1:50PM 1.39 | 3:15AM 1.40 | 2:48PM 1.20 | 3:53AM 1.47 | 4:11PM 1.00 | 4:39AM 1.54 | 6:24PM 0.87 | 5:35AM 1.60 | 6:39AM 1.65 | 7:44AM 1.71 | 11:20PM 1.00 | 8:45AM 1.78 | 11:42PM 1.05 | 9:39AM 1.82 | 12:07AM 1.10 | 10:29AM 1.83 | 12:33AM 1.15 | 11:14AM 1.80 | 12:59AM 1.21 | 11:55AM 1.71 | 1:25AM 1.27 | |||||||||||||||
Low Tide / height (m) | 8:03AM 0.79 | 8:28PM 0.42 | 9:13AM 0.74 | 8:53PM 0.55 | 10:40AM 0.67 | 9:17PM 0.68 | 12:24PM 0.55 | 9:39PM 0.79 | 2:00PM 0.38 | 3:07PM 0.22 | 3:59PM 0.09 | 1:37AM 0.97 | 4:43PM 0.01 | 3:02AM 0.93 | 5:23PM -0.02 | 4:04AM 0.86 | 5:58PM 0.01 | 4:56AM 0.80 | 6:30PM 0.07 | 5:45AM 0.75 | 6:58PM 0.17 | |||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||||||||||||
| Sunrise | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - |
| Sunset | - | 6:07 | - | - | 6:07 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:08 | - | - | 6:09 | - | - | 6:09 | - | - | 6:09 | - | - | 6:09 | - |
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Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 27 | 28 | 25 | 27 | 28 | 25 | 26 | 27 | 25 | 26 | 27 | 24 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 25 | 27 | 28 | 26 | 27 | 28 | 26 |
| Feels °C (?) | 27 | 27 | 26 | 29 | 28 | 26 | 28 | 27 | 26 | 27 | 26 | 25 | 28 | 27 | 25 | 28 | 26 | 26 | 27 | 28 | 26 | 29 | 27 | 27 | 28 | 28 | 27 | 30 | 28 | 27 | 30 | 29 | 29 | 29 | 29 | 29 |
Short Range Forecast: Mostly dry. Warm (max 28°C on Wed afternoon, min 22°C on Thu night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Sat afternoon, min 22°C on Sun night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Tue morning). Wind will be generally light. | Long Range Forecast: Some drizzle, heaviest during Sun night. Warm (max 28°C on Sat afternoon, min 24°C on Fri morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Sumbawa
Offshore wind has become very light (light winds from the SSE at SumbawaBesarBrangbiji 85 km from Scar Reef). Surf should be turning clean at Scar Reef. 1.4m 13s groundswell from the SSW with a 1.4m 13s groundswell from the SSW and a 1.1m 5s windswell from the SE. Swells combining to make to make bigger set waves.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Scar Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 12 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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