Reef
right
Level 8/10

Scar Reef

Sumbawa, Indonesia
🪸Sharp reef⚠️Shallow🏝️Remote

Scar Reef lives up to its name with a wave that has left its mark on countless surfers—a perfect, mechanical right-hand barrel breaking over razor-sharp reef in Sumbawa. The wave peels with metronome consistency, offering flawless tube-riding opportunities, but the tradeoff is a bottom that sits terrifyingly close to the surface. Most surfers wear booties here, and even then, reef encounters are considered when, not if. The remoteness adds to both the appeal and the consequence; scoring Scar Reef uncrowded is the dream, but medical facilities are hours away.

Scar Reef surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Today4
66
Good
1.5m@10s
4km/h
Thu5
54
Fair
1.4m@10s
6km/h
Fri6
67
Good
1.2m@15s
6km/h
Sat7
55
Fair
1.4m@11s
5km/h
Sun8
61
Fair
1.4m@10s
3km/h
Mon9
61
Fair
1.2m@10s
4km/h
Tue10
56
Fair
1.1m@8s
2km/h
Wed11
73
Good
1.1m@14s
4km/h
Thu12
64
Fair
1.8m@11s
2km/h
Fri13
62
Fair
1.6m@11s
1km/h
5+ days out, less certain

Today's Conditions

Find Flights
Best session: MorningAM 1 km/h · PM 5 km/h · Tide at 11am (0.8m)
Swell
1.5m
SSW(204°)
Score: 16/25
Period
10s
Mid-period swell
Score: 6/25
Wind
4km/h
SSW(208°)
Score: 22/25
Weather
31°C
0.1mm29%
First light 5:13amSunrise 5:43amSunset 6:09pmLast light 6:39pm
Windswell
0.1m@1s
Secondary
0.1m
Confidence
100%

Location & Conditions

Loading map...
Swell1.5m @10s SSW in window
Wind4 km/h SSW glassy
SwellWind: Offshore Cross Onshore
Showing forecast for today · all day

Hourly Forecast, Tide & Strike Windows

Strike window: 7:00am–3:58pm · through lowIdeal tide: 0.5–1.5m
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
°C
26°
32°
34°
33°
30°
25°
31°
32°
32°
29°
25°
31°
31°
31°
29°
25°
30°
32°
31°
30°
26°
30°
32°
32°
29°
27°
31°
33°
31°
29°
28°
30°
31°
31°
28°
27°
29°
31°
31°
28°
28°
30°
32°
32°
29°
27°
30°
32°
32°
29°
2m1.0
sec
10s
10s
10s
9s
10s
10s
10s
9s
10s
10s
17s
17s
15s
13s
12s
11s
11s
11s
11s
11s
10s
10s
10s
10s
10s
11s
11s
8s
9s
9s
9s
9s
8s
8s
8s
14s
14s
13s
13s
15s
12s
11s
11s
11s
11s
11s
11s
11s
11s
11s
swell
windkm/h
1g9
2g18
6g28
4g20
7g14
4g10
6g21
7g33
4g22
9g19
0g5
4g16
11g35
5g25
5g17
2g9
5g17
9g30
7g30
2g19
2g13
5g19
7g34
1g26
2g12
5g16
1g19
4g27
6g25
5g22
1g12
2g14
3g22
3g26
4g22
2g10
2g14
7g23
7g29
2g29
1g8
1g13
3g28
2g35
2g31
3g12
2g16
1g27
0g30
3g20
tidem
4:50am1.7m
11:45am0.8m
6:25pm1.8m
12:48am0.9m
6:36am1.7m
12:47pm0.7m
7:18pm2.1m
1:48am0.7m
7:43am1.8m
1:39pm0.7m
7:55pm2.3m
2:33am0.4m
8:36am1.9m
2:18pm0.7m
8:30pm2.4m
3:10am0.2m
9:16am2.0m
2:53pm0.6m
9:02pm2.5m
3:43am0.1m
9:53am2.0m
3:27pm0.6m
9:34pm2.6m
4:15am0.0m
10:25am2.0m
3:56pm0.6m
10:02pm2.6m
4:45am0.0m
10:57am2.0m
4:24pm0.7m
5:15am0.0m
11:27am2.0m
4:51pm0.7m
5:44am0.1m
Ideal tideStrike windowDanger tideNight

Tide times today

4:50 am
High · 1.69m
11:45 am
Low · 0.78m
6:25 pm
High · 1.84m
Times shown in spot-local time.

Strike Score Breakdown

66
Good
Components
Swell Direction22/25
Swell Size16/25
Swell Period6/25
Wind22/25
Raw Score66/100
Adjustments
🌊 Tide+3
💨 Gusty Wind-3
Adjusted Score66/100
Confidence
Multiplier×1.00
Final Score66
🌊 Mostly in the tide window

Plan Your Strike

Return flights to LOP, departing today with a 5-day trip window.

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Swell Requirements

Optimal direction
SSW (200°)
Direction range
180° - 230°
Size range
1m - 3.5m
Ideal size
2.1m - 2.9m
Height multiplier
1.03×
Ideal period
14s+

Wind Requirements

Optimal direction
E (90°)
Offshore range
50° - 130°

Tide Requirements

Optimal tide
mid
Optimal range
0.5m - 1.5m
Danger below
0.2m

Water temp

27°C

Wetsuit

Boardshorts / Rashguard

Difficulty

8/10

Crowd level

2/10

Access: Boat from Lombok or Sumbawa.

Frequently Asked Questions

What kind of wave is Scar Reef?

Scar Reef is a reef break in Sumbawa, Indonesia, that mostly breaks right.

What swell works best at Scar Reef?

Scar Reef picks up swell from the S round to the SW, and it's best when it's coming straight out of the SSW. It starts working at around 1m and handles up to about 3.5m, with the sweet spot around 2.1 to 2.9m. Period matters too: aim for 14s or longer, as anything under 10s tends to be weak. These are the numbers our scoring uses, so treat them as a guide rather than a promise.

What wind is offshore at Scar Reef?

An E wind is dead offshore at Scar Reef, and anything from the NE round to the SE keeps it clean. The morning is typically the best window, roughly 6am to 11am. Light winds from other directions can still be fine; strong offshores can make it hard to get into waves.

What tide is best at Scar Reef?

Scar Reef is at its best around mid tide, roughly 0.5m to 1.5m on the local chart. Below 0.2m it gets dangerously shallow.

When is the best time of year to surf Scar Reef?

The most reliable run of swell at Scar Reef comes Apr to Oct. April-October dry season.

How cold is the water at Scar Reef?

The water at Scar Reef averages around 27°C, so boardshorts or a rashguard will do. It shifts a few degrees through the year, so check the season before you pack.

Is Scar Reef good for beginners?

Not really. It's rated 8/10 for difficulty and suits experienced surfers. The lineup is usually quiet (crowd 2/10). Very shallow reef. Name says it all - expect cuts.

How do I get to Scar Reef?

The nearest airport on our list is LOP. From there you need a boat to reach the break (we estimate around $150 USD, but confirm with an operator). Boat from Lombok or Sumbawa.

What other surf spots are near Scar Reef?

The closest breaks we track are Super Suck (9.2 km), Yo-Yo's (9.3 km) and Tropicals (9.4 km), handy when Scar Reef isn't working.

Best Season

Peak: Apr-Oct

April-October dry season.

Getting There

Airport
LOP
Drive time
0 min
Boat required
$150
Data quality
community

Strike Log

Community Discussion