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Surf Forecasts:
Scar Reef surfForecast / Sumbawa / Indonesia
48hr Weather and Surf, issued 7 am Thursday 21 Aug 2025 WITA
How big are the waves at Scar Reef today?
The current surf forecast for Scar Reef at 12PM is: 1.6m 15s primary swell from a Southwest direction and 0.4m 13s secondary swell from a Southwest direction (forecast issued at 07:00am August 21). An open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (WITA) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 5ft (1.6m) | 16s |
| Afternoon (21 Aug) | 5ft (1.6m) | 15s |
| Evening (21 Aug) | 5ft (1.6m) | 15s |
Table - waves today at Scar Reef. (Swell directed towards the surf break)
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
| 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 1300 | 1269 | 1163 | 1059 | 1140 | 1140 | 1195 | 1308 | 1430 | 1565 | 1773 | 2058 | 2206 | 2472 | 2403 | 2620 | 3005 | 2997 | 2883 | 2650 | 2513 | 2299 | 2268 | 2070 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | cross- off | cross- off | off | cross- off | cross- off | off | cross- off | glass | cross- off | cross- off | off | cross- off | cross- off | off | cross- off | glass | glass | cross- off | glass | glass | glass | glass |
High Tide / height (m) | 8:52AM 1.66 | 11:14PM 1.14 | 9:44AM 1.70 | 11:31PM 1.22 | 10:29AM 1.71 | 11:49PM 1.30 | ||||||||||||||||||
Low Tide / height (m) | 2:29AM 0.98 | 4:32PM 0.10 | 3:34AM 0.86 | 5:03PM 0.11 | 4:22AM 0.75 | 5:30PM 0.15 | ||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
| Sunrise | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:12 | - | - | - | - | - | - | - | 6:10 | - | - | - | - | - | - | - | 6:10 | - | - | - |
 |  | | | | | | | | | |  | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 25 | 27 | 28 | 27 | 25 | 24 | 24 | 23 | 24 | 27 | 27 | 27 | 25 | 24 | 23 | 23 | 24 | 26 | 26 | 27 | 26 | 25 | 24 |
| Feels °C (?) | 25 | 28 | 28 | 28 | 28 | 27 | 26 | 27 | 26 | 27 | 29 | 27 | 28 | 27 | 26 | 25 | 25 | 27 | 29 | 28 | 30 | 29 | 28 | 27 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Sumbawa
The wind is still offshore at Scar Reef (light winds from the SE at SumbawaBesarBrangbiji 85 km from Scar Reef). 1.3m 15s groundswell from the SW to make surfable waves.
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