Scar Reef surf break

Scar Reef surfForecast / Sumbawa / Indonesia

information circle16 Day Weather and Surf, issued 1 am Tuesday 21 Apr 2026 WITA
Forecast update in hr  min  s Forecast update imminent
Scar Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Scar Reef sea temperature is
29.1° C
(Which is normal for this time of year)

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 Tuesday (Apr 21) at 8AM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 1.0m and 12s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Scar Reef in the next 16 days are 1.9m 17s and forecast to arrive on Wednesday (Apr 22) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Apr 22) at 5PM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 21st Apr)3.5ft (1.1m) 15s
Best Surf 8PM (Wed 22nd Apr)6ft (1.9m) 17s
Most Powerful 8PM (Wed 22nd Apr)6ft (1.9m) 17s

Table - best surf conditions forecast for Scar Reef over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 14mm), heaviest on Tue morning. Warm (max 29°C on Wed morning, min 26°C on Tue morning). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Sun afternoon. Warm (max 29°C on Fri afternoon, min 26°C on Fri morning). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
1
3
2
3
3
3
3
3
3
2
2
3
3
2
3
2
2
2
2
Swell
Height Map
Wave Height (m) & direction (?)
1.3
SSW
1.2
SSW
1.4
SSW
1.4
SSW
1.3
SSW
1.8
SSW
2
SSW
1.9
SSW
1.9
SSW
1.8
SSW
1.7
SSW
1.4
SSW
1.2
SSW
1.5
SSW
1.7
SSW
1.7
SSW
1.6
SSW
1.4
SSW
1.3
SSW
1.2
SSW
1.3
SSW
Period(s) (?)141413131716161414131313121517161514141316
Wave
Graph
(?)Metric surfscale
Energy kJ (?)701545669649969154719571525148411271002649384974171414411132731626465859
Wind
(km/h)
10
N
10
NNE
10
NE
5
NW
5
NE
5
ENE
5
NW
5
ESE
5
NE
5
WSW
5
E
5
ENE
5
WNW
5
E
5
ENE
5
SW
5
E
5
ESE
5
SW
5
SSE
5
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscrossglasscrosscross-
off
glassglassglassglassglassglassglassglassglasscrossglasscross-
off
glassoffcross-
off
High Tide
/ height (m)
12:27PM
1.88
2:56AM
0.94
1:08PM
1.77
4:57AM
0.90
1:56PM
1.62
3:08PM
1.44
8:35AM
1.10
5:13PM
1.30
8:29AM
1.22
7:07PM
1.25
8:47AM
1.34
8:24PM
1.26
Low Tide
/ height (m)
8:09PM
0.08
6:07AM
0.84
9:11PM
0.20
6:07AM
0.90
10:30PM
0.31
12:01AM
0.39
10:44AM
1.09
1:14AM
0.44
1:53PM
0.95
2:03AM
0.48
2:52PM
0.75
2:40AM
0.53
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Sunrise6:15--6:15--6:15--6:15--6:15--6:15--6:15--
Sunset-6:07--6:07--6:07--6:06--6:06--6:05--6:05-
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
part cloud
clear
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
Rain (mm)
452-1--2-----1--42-21
Temp. °C282827292928292927282928292928282827282927
Feels °C (?)323231333332333431323432343433323131323331
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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