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Biak Islands Surf Forecast

Basic // Advanced
◀
6am Thu 18 Sep
1ft E 4kt E
(Knee High)
0.5m @ 5.1s E (85°)
0.2m @ 7.6s NNE (29°)
0.2m @ 7.5s ENE (61°)
12pm Thu 18 Sep
1ft E 4kt E
(Knee High)
0.5m @ 5.4s E (85°)
0.2m @ 10.7s NNE (29°)
0.2m @ 7.4s NNE (29°)
6pm Thu 18 Sep
0.5ft E 4kt ENE
(Ankle High)
0.4m @ 5.6s E (85°)
0.2m @ 7.4s NNE (30°)
0.2m @ 7.2s ENE (62°)
6am Fri 19 Sep
1ft E 8kt ENE
(Knee High)
0.5m @ 6.2s E (80°)
0.2m @ 9.8s NNE (30°)
0.2m @ 6.8s NNE (30°)
12pm Fri 19 Sep
1ft ENE 5kt ENE
(Knee High)
0.6m @ 6.3s ENE (75°)
0.2m @ 9.8s NNE (31°)
6pm Fri 19 Sep
1ft ENE 1kt E
(Knee High)
0.6m @ 6.5s ENE (77°)
0.2m @ 9.5s NE (36°)
6am Sat 20 Sep
1ft ENE 6kt S
(Knee High)
0.5m @ 6.7s ENE (78°)
0.2m @ 9.2s NE (39°)
0.2m @ 10.9s ENE (68°)
12pm Sat 20 Sep
1ft ENE 8kt SSW
(Knee High)
0.5m @ 6.8s ENE (78°)
0.2m @ 9.1s NE (40°)
6pm Sat 20 Sep
1ft ENE 4kt SW
(Knee High)
0.5m @ 7.4s ENE (73°)

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Thu 6am
Thu 12pm
Thu 6pm
Fri 6am
Fri 12pm
Fri 6pm
Sat 6am
Sat 12pm
Sat 6pm
Wave Height & Swell Direction
Swell Train Data
Wind Speed & Direction
A
E 4kt
A
E 4kt
A
ENE 4kt
A
ENE 8kt
A
ENE 5kt
A
E 1kt
A
S 6kt
A
SSW 8kt
A
SW 4kt
Tide Times & Weather
Possible thunderstorm 26°C // 28°C
Possible thunderstorm 25°C // 27°C
Rain 25°C // 28°C
▶

Surf Forecast Swell Train Analysis

Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Thu 18/09
12am
1ft
E 3kt
0.5 m
4.9s 84 (E)
0.3 m
7.6s 29 (NNE)
0.2 m
7.7s 60 (ENE)
6am
1ft
E 4kt
0.5 m
5.1s 85 (E)
0.2 m
7.6s 29 (NNE)
0.2 m
7.5s 61 (ENE)
12pm
1ft
E 4kt
0.5 m
5.4s 85 (E)
0.2 m
10.7s 29 (NNE)
0.2 m
7.4s 29 (NNE)
6pm
0.5ft
ENE 4kt
0.4 m
5.6s 85 (E)
0.2 m
7.4s 30 (NNE)
0.2 m
7.2s 62 (ENE)
+
Thu 18/09
1ft
E 4kt
0.5 m
5.4s 85 (E)
0.2 m
10.7s 29 (NNE)
0.2 m
7.4s 29 (NNE)
-
Fri 19/09
12am
1ft
E 2kt
0.4 m
5.7s 84 (E)
0.3 m
7.5s 74 (ENE)
0.2 m
7.2s 30 (NNE)
6am
1ft
ENE 8kt
0.5 m
6.2s 80 (E)
0.2 m
9.8s 30 (NNE)
0.2 m
6.8s 30 (NNE)
12pm
1ft
ENE 5kt
0.6 m
6.3s 75 (ENE)
0.2 m
9.8s 31 (NNE)
6pm
1ft
E 1kt
0.6 m
6.5s 77 (ENE)
0.2 m
9.5s 36 (NE)
+
Fri 19/09
1ft
ENE 5kt
0.6 m
6.3s 75 (ENE)
0.2 m
9.8s 31 (NNE)
-
Sat 20/09
12am
1ft
E 4kt
0.5 m
6.6s 79 (E)
0.2 m
9.3s 37 (NE)
6am
1ft
S 6kt
0.5 m
6.7s 78 (ENE)
0.2 m
9.2s 39 (NE)
0.2 m
10.9s 68 (ENE)
12pm
1ft
SSW 8kt
0.5 m
6.8s 78 (ENE)
0.2 m
9.1s 40 (NE)
6pm
1ft
SW 4kt
0.5 m
7.4s 73 (ENE)
+
Sat 20/09
1ft
SSW 8kt
0.5 m
6.8s 78 (ENE)
0.2 m
9.1s 40 (NE)
  • bulletin_datetime_utc => 2025-09-17 06:00:00
  • location_identifier => 352
  • timezone => Asia/Jakarta