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Iwanai Surf Forecast
◀
6am Sun 21 Sep
5ft NNE
32kt NNE
(1.5x Overhead)
6ft North-east facing beaches
(2x Overhead)
3.4m @ 7s NNE (14°)
12pm Sun 21 Sep
4ft NNE
21kt N
(Overhead)
3-5ft North-east facing beaches
(Well Overhead)
2.7m @ 7.3s NNE (13°)
6pm Sun 21 Sep
2-3ft N
17kt N
(Shoulder-Head High)
3ft North-east facing beaches
(Head High)
1.8m @ 7s N (8°)
6am Mon 22 Sep
1ft+ N
7kt NW
(Knee-Waist High)
0.9m @ 5.3s N (359°)
12pm Mon 22 Sep
1ft N
11kt W
(Knee High)
0.6m @ 5.1s N (353°)
6pm Mon 22 Sep
1ft NNW
8kt WNW
(Knee High)
0.6m @ 4.7s NNW (332°)
6am Tue 23 Sep
0.5ft NNW
1kt SE
(Ankle High)
0.3m @ 4s NNW (338°)
12pm Tue 23 Sep
0.5ft N
2kt SSW
(Ankle High)
0.2m @ 4.2s N (351°)
6pm Tue 23 Sep
0.5ft WNW
0kt ENE
(Ankle High)
0.2m @ 3.8s WNW (287°)
Sun
6am
Sun
12pm
Sun
6pm
Mon
6am
Mon
12pm
Mon
6pm
Tue
6am
Tue
12pm
Tue
6pm
Wave Height & Swell Direction
Swell Train Data
Wind Speed & Direction
A
NNE
32kt
A
N
21kt
A
N
17kt
A
NW
7kt
A
W
11kt
A
WNW
8kt
A
SE
1kt
A
SSW
2kt
A
ENE
0kt
Tide Times & Weather
13°C // 16°C
11°C // 20°C
11°C // 21°C
▶
Surf Forecast Swell Train Analysis
Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Sun
21/09
12am
2-3ft
3-4ft
NF
NNE
34kt
2.3
m
5.3s
24 (NNE)
0.2
m
4.2s
252 (WSW)
0.2
m
7s
138 (SE)
6am
5ft
6ft
NF
NNE
32kt
3.4
m
7s
14 (NNE)
12pm
4ft
3-5ft
NF
N
21kt
2.7
m
7.3s
13 (NNE)
6pm
2-3ft
3ft
NF
N
17kt
1.8
m
7s
8 (N)
Sun
21/09
4ft
3-5ft
NF
N
21kt
2.7
m
7.3s
13 (NNE)
-
Mon
22/09
12am
2ft
N
11kt
1.3
m
6.1s
5 (N)
6am
1ft+
NW
7kt
0.9
m
5.3s
359 (N)
12pm
1ft
W
11kt
0.6
m
5.1s
353 (N)
6pm
1ft
WNW
8kt
0.6
m
4.7s
332 (NNW)
Mon
22/09
1ft
W
11kt
0.6
m
5.1s
353 (N)
-
Tue
23/09
12am
1ft
WSW
6kt
0.4
m
4.1s
337 (NNW)
6am
0.5ft
SE
1kt
0.3
m
4s
338 (NNW)
12pm
0.5ft
SSW
2kt
0.2
m
4.2s
351 (N)
6pm
0.5ft
ENE
0kt
0.2
m
3.8s
287 (WNW)
Tue
23/09
0.5ft
SSW
2kt
0.2
m
4.2s
351 (N)
- bulletin_datetime_utc => 2025-09-20 06:00:00
- location_identifier => 283
- timezone => Asia/Tokyo