Primary tabs
Check the 16-day forecast with Swellnet Pro for $8.95/month
Withernsea Surf Forecast
◀
6am Sun 21 Sep
4ft N
29kt NNW
(Overhead)
3.1m @ 6.8s N (351°)
12pm Sun 21 Sep
3ft NNW
22kt NNW
(Head High)
2.5m @ 7.4s NNW (345°)
6pm Sun 21 Sep
3ft N
21kt NNW
(Head High)
2.5m @ 7.8s N (350°)
6am Mon 22 Sep
3-4ft N
16kt NNW
(Overhead)
2.5m @ 9.6s N (358°)
12pm Mon 22 Sep
3-4ft N
10kt NNW
(Overhead)
2.2m @ 10s N (360°)
6pm Mon 22 Sep
3ft N
9kt N
(Head High)
1.8m @ 10.5s N (1°)
6am Tue 23 Sep
2ft N
10kt NNW
(Waist-Shoulder High)
1.3m @ 10.2s N (359°)
12pm Tue 23 Sep
1-2ft N
11kt N
(Waist High)
1.3m @ 9.7s N (357°)
6pm Tue 23 Sep
1-2ft N
12kt NNE
(Waist High)
1.3m @ 9s N (359°)
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
NNW
29kt
A
NNW
22kt
A
NNW
21kt
A
NNW
16kt
A
NNW
10kt
A
N
9kt
A
NNW
10kt
A
N
11kt
A
NNE
12kt
Tide Times & Weather
7°C // 13°C
5°C // 13°C
6°C // 14°C
▶
Surf Forecast Swell Train Analysis
Date
Surf
Wind
Primary Swell
Secondary Swell
Tertiary Swell
-
Sun
21/09
12am
2-3ft
N
28kt
2.0
m
5.2s
5 (N)
0.6
m
10s
7 (N)
0.4
m
4.4s
176 (S)
6am
4ft
NNW
29kt
3.1
m
6.8s
351 (N)
12pm
3ft
NNW
22kt
2.5
m
7.4s
345 (NNW)
6pm
3ft
NNW
21kt
2.5
m
7.8s
350 (N)
Sun
21/09
3ft
NNW
22kt
2.5
m
7.4s
345 (NNW)
-
Mon
22/09
12am
3-4ft
N
18kt
2.5
m
8.7s
357 (N)
6am
3-4ft
NNW
16kt
2.5
m
9.6s
358 (N)
12pm
3-4ft
NNW
10kt
2.2
m
10s
360 (N)
6pm
3ft
N
9kt
1.8
m
10.5s
1 (N)
Mon
22/09
3-4ft
NNW
10kt
2.2
m
10s
360 (N)
-
Tue
23/09
12am
2-3ft
NW
6kt
1.5
m
10.8s
1 (N)
6am
2ft
NNW
10kt
1.3
m
10.2s
359 (N)
12pm
1-2ft
N
11kt
1.3
m
9.7s
357 (N)
6pm
1-2ft
NNE
12kt
1.3
m
9s
359 (N)
Tue
23/09
1-2ft
N
11kt
1.3
m
9.7s
357 (N)
- bulletin_datetime_utc => 2025-09-21 06:00:00
- location_identifier => 548
- timezone => Europe/London