Asu 88.3
#974 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 score88.3 /100
Surfable days100% of the year
Clean days76% groundswell + friendly wind
Groundswell94% period 11 s+
Typical size1.4 m 4.8 ft median
Water30°C boardshorts
Best time to surf Asu
The best time to surf Asu is February, May, June. The season runs all year. In February the water sits around 30°C, so pack boardshorts, and the typical wave is 1.2 m. The nearest airport is MES (335 km) and the nearest town is Sibolga (190 km).
| Month | Surfable | Clean | Size | Water | Suit |
|---|---|---|---|---|---|
| Jan | 100% | 81% | 1.2 m | 29°C | boardies |
| Feb | 100% | 86% | 1.2 m | 30°C | boardies |
| Mar | 100% | 79% | 1.2 m | 30°C | boardies |
| Apr | 100% | 77% | 1.4 m | 30°C | boardies |
| May | 100% | 83% | 1.6 m | 30°C | boardies |
| Jun | 100% | 83% | 1.7 m | 30°C | boardies |
| Jul | 100% | 79% | 1.9 m | 30°C | boardies |
| Aug | 100% | 67% | 1.7 m | 30°C | boardies |
| Sep | 100% | 81% | 1.7 m | 30°C | boardies |
| Oct | 100% | 74% | 1.5 m | 30°C | boardies |
| Nov | 100% | 49% | 1.3 m | 29°C | boardies |
| Dec | 100% | 71% | 1.3 m | 29°C | boardies |
Why 88.3
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%
4.0
Water comfort 10%
10.0
Access 10%
0.0
The detail
Faces 0° with 58% open water around it. Friendly morning wind 81% of days. Mean peak period 13.6 s. Days over 3 m: 0%. Mellow days (0.4 to 1.2 m): 20%. Months that work: 12 of 12. Coordinates 0.867, 97.334 (OpenStreetMap).
Spots nearby
Hinako Islands🇮🇩 Indonesia · score 88.1Bawa🇮🇩 Indonesia · score 88.4Afulu🇮🇩 Indonesia · score 87.2Shark Pit🇮🇩 Indonesia · score 88.0
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