Check the 16-day forecast with Swellnet Pro for $8.95/month

Niigata South Surf Forecast

6am Sat 18 May
2-3ft W 9kt S
(Shoulder-Head High)
1.6m @ 7.4s W (278°)
12pm Sat 18 May
1-2ft W 8kt SSW
(Waist High)
1.1m @ 6.8s W (271°)
0.4m @ 6.8s NNW (344°)
6pm Sat 18 May
1ft W 8kt SW
(Knee High)
0.9m @ 6.1s W (263°)
0.3m @ 6.6s NNW (346°)
6am Sun 19 May
1ft WSW 6kt SSE
(Knee High)
0.6m @ 5.8s WSW (258°)
12pm Sun 19 May
1ft WSW 2kt SE
(Knee High)
0.5m @ 5.8s WSW (258°)
6pm Sun 19 May
0.5ft W 3kt N
(Ankle High)
0.4m @ 5.7s W (259°)
6am Mon 20 May
0.5ft WSW 6kt SSW
(Ankle High)
0.4m @ 5.5s WSW (255°)
12pm Mon 20 May
0.5ft WSW 9kt SSE
(Ankle High)
0.3m @ 4.9s WSW (247°)
6pm Mon 20 May
0.5ft WSW 6kt SW
(Ankle High)
0.4m @ 4.8s WSW (249°)

This is premium content for Swellnet Pro subscribers WHY?

Become a subscriber and receive access to ad-free 16 day surf forecasts and charts, detailed surf forecaster notes, dawn surf reports and premium, ad-free surfcams and replays.

Get Swellnet Pro
Sat 6am
Sat 12pm
Sat 6pm
Sun 6am
Sun 12pm
Sun 6pm
Mon 6am
Mon 12pm
Mon 6pm
Wave Height & Swell Direction
Swell Train Data
Wind Speed & Direction
A
S 9kt
A
SSW 8kt
A
SW 8kt
A
SSE 6kt
A
SE 2kt
A
N 3kt
A
SSW 6kt
A
SSE 9kt
A
SW 6kt
Tide Times & Weather
Sunny 12°C // 25°C
Late shower 15°C // 23°C
Rain 16°C // 19°C

Surf Forecast Swell Train Analysis

Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Sat 18/05
12am
3-4ft
SW 9kt
2.4 m
8.6s 277 (W)
6am
2-3ft
S 9kt
1.6 m
7.4s 278 (W)
12pm
1-2ft
SSW 8kt
1.1 m
6.8s 271 (W)
0.4 m
6.8s 344 (NNW)
6pm
1ft
SW 8kt
0.9 m
6.1s 263 (W)
0.3 m
6.6s 346 (NNW)
+
Sat 18/05
1-2ft
SSW 8kt
1.1 m
6.8s 271 (W)
0.4 m
6.8s 344 (NNW)
-
Sun 19/05
12am
1ft
S 7kt
0.8 m
5.8s 260 (W)
0.2 m
6.5s 348 (NNW)
6am
1ft
SSE 6kt
0.6 m
5.8s 258 (WSW)
12pm
1ft
SE 2kt
0.5 m
5.8s 258 (WSW)
6pm
0.5ft
N 3kt
0.4 m
5.7s 259 (W)
+
Sun 19/05
1ft
SE 2kt
0.5 m
5.8s 258 (WSW)
-
Mon 20/05
12am
0.5ft
WSW 5kt
0.4 m
5.6s 260 (W)
6am
0.5ft
SSW 6kt
0.4 m
5.5s 255 (WSW)
12pm
0.5ft
SSE 9kt
0.3 m
4.9s 247 (WSW)
6pm
0.5ft
SW 6kt
0.4 m
4.8s 249 (WSW)
+
Mon 20/05
0.5ft
SSE 9kt
0.3 m
4.9s 247 (WSW)
  • bulletin_datetime_utc => 2024-05-18 06:00:00
  • location_identifier => 258
  • timezone => Asia/Tokyo