Reef
right
Level 7/10

Asu

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

Asu is Indonesia's best-kept secret right—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 right 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.

3-Day Forecast
Tue
17
78
Good
1.6m
@16s
7km/h
Wed
18
66
Good
1.4m
@15s
12km/h
Thu
19
70
Good
1.3m
@15s
6km/h
+7
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Today's Conditions

Swell
1.6m
SW(215°)
Score: 12/25
Period
16s
Long period groundswell
Score: 25/25
Wind
7km/h
SE(128°)
Score: 20/25
Weather
28°C
0.5mm65%
Secondary Swell
0.8mSSE
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning

Location & Conditions

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

Tide Times

4:55 am
High tide - 0.70m
10:30 am
Low tide - 0.24m
4:55 pm
High tide - 0.91m
Times shown in spot-local time.

Strike Score Breakdown

78
Good
Components
Swell Direction21/25
Swell Size12/25
Swell Period25/25
Wind20/25
Raw Score78/100
Confidence
Multiplier×1.00
Final Score78

Spot Details

Swell Requirements

Optimal direction
SW (220°)
Direction range
190° - 250°
Size range
1m - 3m
Ideal size
2.5m
Height multiplier
0.97×
Ideal period
14s+

Wind Requirements

Optimal direction
S (180°)
Offshore range
140° - 220°
Best window
morning

Tide Requirements

Optimal tide
mid
Optimal range
0.5m - 1.5m

Water temp

28°C

Wetsuit

Boardshorts / Rashguard

Difficulty

7/10

Crowd level

2/10

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
community

Strike Log

Community Discussion