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Surf Forecasts:

Scar Reef surf break

Scar Reef surfForecast / Sumbawa / Indonesia

information circle12 Day Weather and Surf, issued 7 pm Sunday 18 Jan 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
28.9° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jan 23) at 11PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 1.0m and 7s. Another secondary swell of 1.3m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Scar Reef in the next 12 days are 2.3m 17s and forecast to arrive on Thursday (Jan 22) at 2AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (WITA) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 23rd Jan)4.5ft (1.4m) 14s
Best Surf11PM (Fri 23rd Jan)4.5ft (1.4m) 14s
Most Powerful 2AM (Thu 22nd Jan)7.5ft (2.3m) 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 Heavy rain (total 99mm), heaviest during Wed afternoon. Warm (max 29°C on Mon afternoon, min 25°C on Sun night). Winds increasing (light winds from the WNW on Mon morning, fresh winds from the WSW by Wed morning).

Days 3-6 Weather Summary Heavy rain (total 34mm), heaviest during Thu afternoon. Warm (max 29°C on Sat afternoon, min 25°C on Wed night). Winds decreasing (fresh winds from the W on Thu afternoon, calm by Fri night).

Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sun
25
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
1
1
0
0
0
0
1
2
3
3
0
0
1
1
3
2
1
0
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.4
SW
1.2
SW
1.4
SW
1.6
SW
1.7
SSW
1.5
SSW
1.3
SSW
1.3
SSW
1.6
SSW
2.3
SSW
2.1
SSW
2.1
SSW
1.8
SSW
1.6
SSW
1.3
SSW
1.5
SSW
1.4
SW
1.2
SW
1.1
SW
1.2
SW
0.8
SSW
Period(s) (?)151415161414142019171616141413141313121218
Wave
Graph
(?)Metric surfscale
Energy kJ (?)77360689311781143908626134216623057225720231301943606921732471341386418
Wind
(km/h)
10
W
15
WSW
20
WSW
20
W
20
WSW
25
WSW
30
W
30
WSW
10
W
10
NW
10
WNW
30
W
25
W
15
WSW
10
WNW
0
N
5
W
15
WSW
15
WSW
10
N
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		onglassglasscrosscrosscross-
on		cross-
on
High Tide
/ height (m)
10:22PM
1.73
12:32PM
1.12
10:58PM
1.76
12:53PM
1.16
11:33PM
1.75
1:15PM
1.22
12:08AM
1.69
1:39PM
1.29
12:44AM
1.58
2:04PM
1.36
1:23AM
1.43
2:32PM
1.42
2:09AM
1.24
3:04PM
1.48
Low Tide
/ height (m)
5:56AM
0.06
4:43PM
0.86
6:23AM
0.07
5:21PM
0.82
6:48AM
0.12
6:02PM
0.79
7:12AM
0.19
6:45PM
0.76
7:34AM
0.29
7:34PM
0.73
7:55AM
0.40
8:30PM
0.70
8:14AM
0.52
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sun
25
Sunrise-6:05--6:05--6:07--6:07--6:07--6:07--6:09-
Sunset--6:39--6:39--6:39--6:39--6:40--6:40--6:40
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
rain showers
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
Rain (mm)
151275318133524711351-19212
Temp. °C272829272728272626262627262828262829282527
Feels °C (?)303130302829282629282827263030293231322631
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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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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