Castletown Surf Break

Lat Long: 54.07° N 4.65° W

Castletown 48 hour detailed Surf Forecast

Issued: 6 pm 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Castletown sea temperature is
15.7°C
0.9° 

Castletown surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Castletown today (17 Sep):

  • Afternoon surf: Afternoon surf (17 Sep, local time) - 2.5ft (0.8m), 4s period with WSW swell.
  • Evening surf: Evening surf (17 Sep, local time) - 3.5ft (1.1m), 4s period with SW swell.

The current surf forecast for Castletown at 12AM is: 1.6m 5s primary swell from a Southwest direction (forecast issued at 06:00pm September 16). An open ocean swell of 0.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (17 Sep)--
Afternoon (17 Sep)2.5ft (0.8m)4s
Evening (17 Sep)3.5ft (1.1m)4s

Table - waves today at Castletown. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 9mm), mostly falling on Wed night. Very mild (max 16°C on Fri afternoon, min 13°C on Wed night). Mainly strong winds.

Wed
16
Thursday
17
Friday
18
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
WSW
4
0.9
SW
4
1.1
SW
5
1.7
SW
5
1.4
W
6
0.9
SSW
6
1.8
WSW
6
1.9
WSW
6
1.6
WSW
6
1.6
W
5
1.7
W
6
1.6
W
6
1.6
W
6
1.4
WSW
5
1.4
WSW
5
1.6
SW
6
2.1
SSW
6
2.2
SW
7
2
SW
7
Wave Graph
Metric surfscale
Energy kJ
18
26
54
166
117
55
200
229
167
143
0
152
154
113
98
165
359
424
352
Wind (km/h)
25
WSW
30
WSW
35
SW
40
SW
35
WNW
35
W
40
W
45
W
40
W
35
W
40
W
35
W
40
W
30
WSW
35
SW
35
SSW
40
SW
40
WSW
45
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
3:12PM4.65m
3:32AM4.59m
3:51PM4.42m
4:16AM4.24m
4:38PM4.16m
Low Tide
9:19PM1.00m
9:40AM1.21m
10:01PM1.33m
10:23AM1.58m
cloud
cloud
part cloud
light rain
rain showers
clear
clear
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
cloud
light rain
light rain
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:32
7:30
7:28
 mm
3
1
1
3
Temp °C
14
15
15
14
14
13
13
14
14
15
14
13
13
13
14
13
14
16
16
Feels °C
9
9
8
7
7
6
5
5
6
8
6
6
5
7
7
6
7
10
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castletown surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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