Primary tabs
Check the 16-day forecast with Swellnet Pro for $8.95/month
Chiba South Surf Forecast
◀
6am Sat 19 Apr
1-2ft SW
7kt SW
(Waist High)
1.0m @ 5.6s SW (224°)
0.3m @ 9.5s ESE (106°)
12pm Sat 19 Apr
1ft+ SW
9kt SSW
(Knee-Waist High)
0.8m @ 5.6s SW (219°)
0.4m @ 9.4s ESE (106°)
6pm Sat 19 Apr
1ft SW
8kt SSW
(Knee High)
0.7m @ 5.3s SW (217°)
0.4m @ 9.4s ESE (106°)
6am Sun 20 Apr
1ft SSW
12kt SW
(Knee High)
0.7m @ 4.3s SSW (213°)
0.4m @ 9.3s ESE (107°)
12pm Sun 20 Apr
1ft SW
13kt SW
(Knee High)
0.8m @ 4.3s SW (216°)
0.4m @ 9.2s ESE (108°)
6pm Sun 20 Apr
1ft SW
12kt SW
(Knee High)
0.8m @ 4.5s SW (218°)
0.4m @ 9s ESE (108°)
6am Mon 21 Apr
1ft SW
12kt NE
(Knee High)
0.5m @ 5.1s SW (234°)
0.4m @ 8.9s ESE (110°)
0.4m @ 3.9s NE (37°)
12pm Mon 21 Apr
0.5ft ESE
13kt E
(Ankle High)
1ft+ North-east facing beaches
(Knee-Waist High)
0.5m @ 8.7s ESE (111°)
0.2m @ 5.1s SW (219°)
0.8m @ 5.2s NE (49°)
6pm Mon 21 Apr
0.5ft ESE
6kt ESE
(Ankle High)
1ft+ North-east facing beaches
(Knee-Waist High)
0.5m @ 8.4s ESE (112°)
0.8m @ 5.8s NE (53°)
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
SW
7kt
A
SSW
9kt
A
SSW
8kt
A
SW
12kt
A
SW
13kt
A
SW
12kt
A
NE
12kt
A
E
13kt
A
ESE
6kt
Tide Times & Weather
15°C // 26°C
17°C // 23°C
15°C // 24°C
▶
Surf Forecast Swell Train Analysis
Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Sat
19/04
12am
1-2ft
WSW
12kt
1.1
m
5.6s
223 (SW)
0.3
m
9.6s
106 (ESE)
6am
1-2ft
SW
7kt
1.0
m
5.6s
224 (SW)
0.3
m
9.5s
106 (ESE)
12pm
1ft+
SSW
9kt
0.8
m
5.6s
219 (SW)
0.4
m
9.4s
106 (ESE)
6pm
1ft
SSW
8kt
0.7
m
5.3s
217 (SW)
0.4
m
9.4s
106 (ESE)
Sat
19/04
1ft+
SSW
9kt
0.8
m
5.6s
219 (SW)
0.4
m
9.4s
106 (ESE)
-
Sun
20/04
12am
1ft
SW
11kt
0.7
m
5s
214 (SW)
0.4
m
9.4s
107 (ESE)
6am
1ft
SW
12kt
0.7
m
4.3s
213 (SSW)
0.4
m
9.3s
107 (ESE)
12pm
1ft
SW
13kt
0.8
m
4.3s
216 (SW)
0.4
m
9.2s
108 (ESE)
6pm
1ft
SW
12kt
0.8
m
4.5s
218 (SW)
0.4
m
9s
108 (ESE)
Sun
20/04
1ft
SW
13kt
0.8
m
4.3s
216 (SW)
0.4
m
9.2s
108 (ESE)
-
Mon
21/04
12am
1ft
WSW
11kt
0.8
m
4.7s
228 (SW)
0.4
m
9s
110 (ESE)
6am
1ft
NE
12kt
0.5
m
5.1s
234 (SW)
0.4
m
8.9s
110 (ESE)
0.4
m
3.9s
37 (NE)
12pm
0.5ft
1ft+
NF
E
13kt
0.5
m
8.7s
111 (ESE)
0.2
m
5.1s
219 (SW)
0.8
m
5.2s
49 (NE)
6pm
0.5ft
1ft+
NF
ESE
6kt
0.5
m
8.4s
112 (ESE)
0.8
m
5.8s
53 (NE)
Mon
21/04
0.5ft
1ft+
NF
E
13kt
0.5
m
8.7s
111 (ESE)
0.2
m
5.1s
219 (SW)
0.8
m
5.2s
49 (NE)
- bulletin_datetime_utc => 2025-04-19 00:00:00
- location_identifier => 242
- timezone => Asia/Tokyo