Reef
left
Level 7/10

Asu

Hinako Islands, Indonesia
🪸Sharp reef🏝️Remote🚶Difficult access

Asu is Indonesia's best-kept secret left—a pristine, barreling wave off a speck of an island in the Hinako group that few surfers ever reach. The journey here is an adventure in itself: flights, boat transfers, and basic island living, but the reward is potentially perfect waves with a handful of other surfers at most. The left reels along a coral-strewn reef, offering long, makeable barrels when the Indian Ocean delivers. Asu represents the ultimate surf trip ethos: go further, score better, embrace the simple life.

10-Day Forecast
Today
21
49
Fair
2.0m
@15s
19km/h
Mon
22
76
Good
1.9m
@14s
4km/h
Tue
23
65
Good
1.8m
@14s
8km/h
Wed
24
69
Good
1.6m
@15s
6km/h
Thu
25
70
Good
1.5m
@15s
7km/h
Fri
26
78
Good
1.2m
@16s
9km/h
Sat
27
69
Good
1.5m
@17s
8km/h
Sun
28
78
Good
2.1m
@17s
5km/h
Mon
29
85
Firing
2.4m
@16s
10km/h
Tue
30
68
Good
2.5m
@15s
9km/h

Today's Conditions

Find Flights
Swell
2.0m
SSW(209°)
Score: 16/25
Period
15s
Long period groundswell
Score: 25/25
Wind
19km/h
WNW(303°)
Score: 0/25
Weather
27°C
1.9mm97%
Windswell Component
0.3mWNW@2s
Secondary Swell
0.8mSSE
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 20 km/h NW|PM: 21 km/h NW
Similar wind — morning has better tide for this spot
High tide at 10am (0.8m)

Location & Conditions

Loading map...
0°45°90°135°180°225°270°315°NESW
Swell
Wind
View in OpenStreetMap
Showing forecast for today

Tide Times

3:30 am
Low tide - 0.35m
10:06 am
High tide - 0.78m
4:50 pm
Low tide - 0.25m
Times shown in spot-local time.

Strike Score Breakdown

49
Fair
Components
Swell Direction15/25
Swell Size16/25
Swell Period25/25
Wind0/25
Raw Score56/100
Adjustments
🌊 Tide+3
⚠️ Weak Component-10
Adjusted Score49/100
Confidence
Multiplier×1.00
Final Score49
🌊 Mostly in the tide window👥 Semester Break
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Spot Details

Swell Requirements

Optimal direction
SW (225°)
Direction range
200° - 250°
Size range
1m - 3m
Ideal size
2.5m
Height multiplier
0.97×
Ideal period
14s+

Wind Requirements

Optimal direction
SE (135°)
Offshore range
90° - 180°

Tide Requirements

Optimal tide
mid to high
Optimal range
0.5m - 1.5m

Water temp

28°C

Wetsuit

Boardshorts / Rashguard

Difficulty

7/10

Crowd level

2/10

👥 Semester Break (Jun 20Jul 12) — expect extra crowds

Access: Boat from Nias or Sibolga.

Best Season

Peak: Apr-Oct

April-October. Indian Ocean swells.

Getting There

Airport
GNS
Drive time
0 min
Boat required
$180
Data quality
verified

Strike Log

Community Discussion