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Iwanai Surf Forecast
◀
6am Mon 22 Sep
1ft+ N
8kt NNW
(Knee-Waist High)
1-2ft North-east facing beaches
(Waist High)
1.0m @ 6s N (6°)
12pm Mon 22 Sep
1ft N
10kt W
(Knee High)
0.7m @ 5.1s N (355°)
6pm Mon 22 Sep
1ft NNW
7kt W
(Knee High)
0.6m @ 4.2s NNW (332°)
6am Tue 23 Sep
0.5ft NNW
2kt ESE
(Ankle High)
0.3m @ 4.2s NNW (332°)
12pm Tue 23 Sep
0.5ft N
2kt S
(Ankle High)
0.2m @ 4.3s N (349°)
0.2m @ 4s WNW (292°)
6pm Tue 23 Sep
0.5ft WNW
1kt N
(Ankle High)
0.2m @ 4.1s WNW (294°)
6am Wed 24 Sep
Flat
8kt SE
12pm Wed 24 Sep
Flat
15kt SSE
(Flat)
0.2m @ 2.3s SE (145°)
6pm Wed 24 Sep
Flat
19kt SE
(Flat)
Flat South facing beaches
(Knee High)
1.1m @ 4.1s SE (145°)
Mon
6am
Mon
12pm
Mon
6pm
Tue
6am
Tue
12pm
Tue
6pm
Wed
6am
Wed
12pm
Wed
6pm
Wave Height & Swell Direction
Swell Train Data
Wind Speed & Direction
A
NNW
8kt
A
W
10kt
A
W
7kt
A
ESE
2kt
A
S
2kt
A
N
1kt
A
SE
8kt
A
SSE
15kt
A
SE
19kt
Tide Times & Weather
11°C // 20°C
11°C // 20°C
11°C // 21°C
▶
Surf Forecast Swell Train Analysis
Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Mon
22/09
12am
2ft
N
11kt
1.4
m
6.5s
10 (N)
6am
1ft+
1-2ft
NF
NNW
8kt
1.0
m
6s
6 (N)
12pm
1ft
W
10kt
0.7
m
5.1s
355 (N)
6pm
1ft
W
7kt
0.6
m
4.2s
332 (NNW)
Mon
22/09
1ft
W
10kt
0.7
m
5.1s
355 (N)
-
Tue
23/09
12am
1ft
WNW
6kt
0.4
m
4.2s
332 (NNW)
6am
0.5ft
ESE
2kt
0.3
m
4.2s
332 (NNW)
12pm
0.5ft
S
2kt
0.2
m
4.3s
349 (N)
0.2
m
4s
292 (WNW)
6pm
0.5ft
N
1kt
0.2
m
4.1s
294 (WNW)
Tue
23/09
0.5ft
S
2kt
0.2
m
4.3s
349 (N)
0.2
m
4s
292 (WNW)
-
Wed
24/09
12am
0.5ft
SE
5kt
0.2
m
4.1s
291 (WNW)
6am
Flat
SE
8kt
12pm
Flat
SSE
15kt
0.2
m
2.3s
145 (SE)
6pm
Flat
1ft
SF
SE
19kt
1.1
m
4.1s
145 (SE)
Wed
24/09
Flat
SSE
15kt
0.2
m
2.3s
145 (SE)
- bulletin_datetime_utc => 2025-09-21 06:00:00
- location_identifier => 283
- timezone => Asia/Tokyo