Rockstar 86.9
#1169 of 5753 surf spots in the world · 🇮🇩 Indonesia · Sumatera Utara · near Sibolga
Works almost every day, clean mornings are the norm, no off season.
Works all yearWarm waterRemoteIntermediate
Surf score86.9 /100
Surfable days100% of the year
Clean days85% groundswell + friendly wind
Groundswell88% period 11 s+
Typical size1.1 m 3.7 ft median
Water30°C boardshorts
Best time to surf Rockstar
The best time to surf Rockstar is April, July, August. The season runs all year. In August the water sits around 30°C, so pack boardshorts, and the typical wave is 1.3 m. The nearest airport is PDG (309 km) and the nearest town is Sibolga (164 km).
| Month | Surfable | Clean | Size | Water | Suit |
|---|---|---|---|---|---|
| Jan | 99% | 74% | 1.0 m | 30°C | boardies |
| Feb | 100% | 76% | 0.9 m | 30°C | boardies |
| Mar | 100% | 78% | 0.9 m | 30°C | boardies |
| Apr | 100% | 95% | 1.1 m | 30°C | boardies |
| May | 100% | 88% | 1.2 m | 30°C | boardies |
| Jun | 100% | 92% | 1.3 m | 30°C | boardies |
| Jul | 100% | 95% | 1.5 m | 30°C | boardies |
| Aug | 100% | 99% | 1.3 m | 30°C | boardies |
| Sep | 100% | 84% | 1.3 m | 30°C | boardies |
| Oct | 100% | 92% | 1.2 m | 30°C | boardies |
| Nov | 100% | 75% | 1.0 m | 29°C | boardies |
| Dec | 100% | 72% | 1.0 m | 29°C | boardies |
Why 86.9
Seven parts, each normalised 0 to 1 and weighted; the sum is scaled so the best spot in the world is 100.
Consistency 26%
26.0
Clean days 24%
24.0
Groundswell 12%
12.0
Season spread 10%
10.0
Wave size 8%
2.7
Water comfort 10%
10.0
Access 10%
0.0
The detail
Faces 125° with 72% open water around it. Friendly morning wind 96% of days. Mean peak period 13.6 s. Days over 3 m: 0%. Mellow days (0.4 to 1.2 m): 58%. Months that work: 12 of 12. Coordinates 0.601, 97.880 (OpenStreetMap).
Spots nearby
Kiddies Corner🇮🇩 Indonesia · score 88.1Lagundri🇮🇩 Indonesia · score 88.2Shark Pit🇮🇩 Indonesia · score 88.0Bawa🇮🇩 Indonesia · score 88.4
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