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Surf Forecasts:

Scar Reef surf break

Scar Reef surfForecast / Sumbawa / Indonesia

information circle12 Day Weather and Surf, issued 7 am Saturday 30 Aug 2025 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
27.0° C
 (Which is slightly warmer than usual)

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 Saturday (Aug 30) at 11AM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.1m and 21s. Another secondary swell of 0.8m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Scar Reef in the next 12 days are 2.4m 17s and forecast to arrive on Saturday (Sep 06) 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 1.7m 7s period and expected on Wednesday (Sep 03) at 8AM.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+)11AM (Sat 30th Aug)3.5ft (1.0m) 11s
Best Surf 8PM (Fri 5th Sep)6ft (1.8m) 14s
Most Powerful 2AM (Sat 6th Sep)8ft (2.4m) 17s

Table - best surf conditions forecast for Scar Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Mon night. Warm (max 27°C on Sat morning, min 23°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Tue afternoon, min 23°C on Thu night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
1
2
2
2
3
3
3
3
3
2
2
2
2
2
3
3
3
3
4
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
SSW
1
SSW
0.9
SSW
0.5
SW
0.6
SW
0.7
SW
0.9
SW
1.2
SW
1.5
SW
1.5
SW
1.6
SW
1.3
SW
1.4
SW
1.3
SW
1.1
SW
1.2
SW
0.9
SSW
1.3
SSW
1.9
SSW
1.3
SSW
2.4
SSW
Period(s) (?)111110181817201818161615151514131917161917
Wave
Graph
(?)Metric surfscale
Energy (?)3192393724355635371088121014081360130885385469160066910401541174321723473
Wind
(km/h)
15
S
15
SSE
10
ESE
10
S
10
SSE
10
E
5
SSW
5
SSE
5
ESE
10
S
10
ESE
10
ESE
10
SSE
15
ESE
10
ESE
10
SSE
15
SE
15
SE
15
S
20
SSE
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		glasscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		offoffcross-
off		cross-
off		off
High Tide
/ height (m)
2:47PM
0.89
2:20AM
1.45
2:57AM
1.39
4:08AM
1.34
6:12AM
1.35
7:38AM
1.43
11:00PM
1.12
8:36AM
1.54
10:52PM
1.19
Low Tide
/ height (m)
9:12AM
0.56
7:04PM
0.74
10:29AM
0.59
1:08PM
0.56
2:36PM
0.45
3:16PM
0.34
3:46PM
0.25
2:41AM
1.01
4:12PM
0.19
3:27AM
0.89
Saturday
30
Sunday
31
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Sunrise6:16--6:15--6:15--6:13--6:13--6:13--6:13--
Sunset-6:10--6:10--6:10--6:10--6:10--6:10--6:09-
clear
part cloud
clear
clear
clear
clear
clear
clear
rain showers
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
--------1------------
Temp. °C272725262725272726282926282826282825272825
Feels °C (?)282626272727302929303028302928292825272625
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Sumbawa

  1. weather stationWind Update Offshore wind has become cross-off at Scar Reef (light winds from the E at Bali International Airport 174 km from Scar Reef). 0.9m 11s groundswell from the SSW with a 0.9m 6s windswell from the SSE and a 0.3m 19s long period groundswell from the SW. 3 swells combining to make bigger set waves.

    1 hour 19 minutes ago Scar Reef
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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.

View detailed surf forecast for Scar Reef at:
surf-forecast.com

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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