Surf Break

Lat Long: 32.34° N 64.67° W

Castle Island 48 hour detailed Surf Forecast

Issued: 8 pm 11 Oct 2026 (local time)

Forecast update in  hr  min

Today's Castle Island sea temperature is
27.6°C
2.0° 

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


How big are the waves at Castle Island today (12 Oct):

  • Morning surf: Morning surf (12 Oct, local time) - 0.5ft (0.1m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (12 Oct, local time) - 2.5ft (0.8m), 4s period with S swell.
  • Evening surf: Evening surf (12 Oct, local time) - 3ft (0.9m), 4s period with SW swell.

The current surf forecast for Castle Island at 5AM is: 0.1m 11s primary swell from a Southeast direction (forecast issued at 08:00pm October 11). An open ocean swell of 0.5m 8s is not directed at the surf break, a second open ocean swell of 1.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (ADT) & DateWave HeightWave Period
Morning (12 Oct)0.5ft (0.1m)9s
Afternoon (12 Oct)2.5ft (0.8m)4s
Evening (12 Oct)3ft (0.9m)4s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Mon afternoon. Warm (max 27°C on Mon afternoon, min 24°C on Sun night). Winds decreasing (fresh winds from the SW on Mon night, light winds from the N by Tue night).

Sun
11
Monday
12
Tuesday
13
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
8
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
9
0.5
S
4
0.8
S
4
1
S
4
0.9
SW
4
1
SW
5
1.2
WSW
5
1.5
W
6
1.6
W
7
1.5
W
10
1.6
WNW
9
1.4
WNW
8
1.3
WNW
8
Wave Graph
Metric surfscale
Energy kJ
5
3
5
5
5
3
7
20
38
27
0
0
167
264
423
383
262
206
Wind (km/h)
25
E
25
ESE
25
ESE
25
SSE
20
SSE
20
SSE
25
S
35
SSW
30
SW
30
SW
35
SW
35
SW
35
WSW
30
W
30
WNW
25
WNW
15
NW
5
N
Wind State
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
off
cross-off
High Tide
9:52PM0.81m
10:14AM0.95m
10:30PM0.78m
10:52AM0.93m
Low Tide
4:00PM0.05m
3:54AM0.05m
4:41PM0.09m
4:30AM0.08m
5:22PM0.13m
cloud
clear
clear
cloud
cloud
cloud
part cloud
clear
thunderstorm
clear
clear
clear
thunderstorm
thunderstorm
rain showers
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
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—
—
7:18
—
—
—
—
—
—
—
7:20
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
—
—
—
—
—
—
—
6:50
—
—
—
—
—
—
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6:47
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 mm
—
—
—
—
—
—
—
—
1
—
—
—
1
1
1
—
—
—
Temp °C
25
25
25
24
24
25
26
26
27
27
27
27
27
26
27
26
26
26
Feels °C
23
22
23
22
23
24
25
24
26
26
26
25
25
25
26
25
27
29
  • 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 Castle Island 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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