Primary tabs
Check the 16-day forecast with Swellnet Pro for $8.95/month
Niigata South Surf Forecast
◀
6am Fri 04 Apr
1-2ft NNW
11kt NW
(Waist High)
1.1m @ 5.2s NNW (335°)
12pm Fri 04 Apr
2ft NNW
7kt NW
(Waist-Shoulder High)
1.2m @ 5.4s NNW (337°)
6pm Fri 04 Apr
2ft NNW
9kt NW
(Waist-Shoulder High)
1.2m @ 5.8s NNW (342°)
6am Sat 05 Apr
1-2ft N
3kt SE
(Waist High)
1.0m @ 6.5s N (355°)
12pm Sat 05 Apr
1ft+ N
4kt E
(Knee-Waist High)
0.9m @ 6.4s N (359°)
6pm Sat 05 Apr
1ft N
8kt NE
(Knee High)
0.7m @ 6.3s N (1°)
6am Sun 06 Apr
0.5ft N
5kt S
(Ankle High)
0.3m @ 5.8s N (3°)
12pm Sun 06 Apr
0.5ft SW
10kt SSE
(Ankle High)
0.4m @ 5.4s SW (224°)
0.2m @ 5.6s N (2°)
0.4m @ 3.3s SSW (200°)
6pm Sun 06 Apr
1ft SW
5kt WSW
(Knee High)
0.6m @ 5.6s SW (232°)
Fri
6am
Fri
12pm
Fri
6pm
Sat
6am
Sat
12pm
Sat
6pm
Sun
6am
Sun
12pm
Sun
6pm
Wave Height & Swell Direction
Swell Train Data
Wind Speed & Direction
A
NW
11kt
A
NW
7kt
A
NW
9kt
A
SE
3kt
A
E
4kt
A
NE
8kt
A
S
5kt
A
SSE
10kt
A
WSW
5kt
Tide Times & Weather
6°C // 9°C
3°C // 12°C
10°C // 15°C
▶
Surf Forecast Swell Train Analysis
Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Fri
04/04
12am
1ft+
NW
12kt
0.9
m
4.7s
342 (NNW)
6am
1-2ft
NW
11kt
1.1
m
5.2s
335 (NNW)
12pm
2ft
NW
7kt
1.2
m
5.4s
337 (NNW)
6pm
2ft
NW
9kt
1.2
m
5.8s
342 (NNW)
Fri
04/04
2ft
NW
7kt
1.2
m
5.4s
337 (NNW)
-
Sat
05/04
12am
2ft
WNW
4kt
1.2
m
6.3s
349 (N)
6am
1-2ft
SE
3kt
1.0
m
6.5s
355 (N)
12pm
1ft+
E
4kt
0.9
m
6.4s
359 (N)
6pm
1ft
NE
8kt
0.7
m
6.3s
1 (N)
Sat
05/04
1ft+
E
4kt
0.9
m
6.4s
359 (N)
-
Sun
06/04
12am
1ft
ESE
6kt
0.5
m
6.2s
2 (N)
6am
0.5ft
S
5kt
0.3
m
5.8s
3 (N)
12pm
0.5ft
SSE
10kt
0.4
m
5.4s
224 (SW)
0.2
m
5.6s
2 (N)
0.4
m
3.3s
200 (SSW)
6pm
1ft
WSW
5kt
0.6
m
5.6s
232 (SW)
Sun
06/04
0.5ft
SSE
10kt
0.4
m
5.4s
224 (SW)
0.2
m
5.6s
2 (N)
0.4
m
3.3s
200 (SSW)
- bulletin_datetime_utc => 2025-04-03 06:00:00
- location_identifier => 258
- timezone => Asia/Tokyo