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Surf Forecasts:

Castles Beach surf break

Castles Beach surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Thursday 20 Nov 2025 HST
Forecast update in hr  min  s Forecast update imminent
Castles Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles Beach sea temperature is
25.9° C
 (Which is normal for this time of year)

How big are the waves at Castles Beach today?

The current surf forecast for Castles Beach at 4AM is: 2.2m 8s primary swell from a East direction and 0.3m 16s secondary swell from a South-southeast direction (forecast issued at 01:00am November 20). An open ocean swell of 1.6m 13s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (HST) & DateWave HeightWave Period
Morning (20 Nov)7ft (2.2m)7s
Afternoon (20 Nov)8ft (2.5m)7s
Evening (20 Nov)8ft (2.5m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
20
Friday
21
Saturday
22
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.3
E
2.2
E
2.2
E
2.3
E
2.2
E
2.3
E
2.5
E
2.5
E
2.4
E
2.2
E
2.1
E
2
E
1.8
E
1.7
E
1.6
E
1.6
E
1.6
E
1.6
E
1.5
E
1.5
E
1.5
E
1.5
E
1.4
E
1.3
E
Period(s) (?)778777888888888888888888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)578537544578529585717736688596537501412377334343351360317317317317277239
Wind
(km/h)
35
E
35
E
35
E
35
E
35
E
35
ENE
35
E
35
E
35
E
35
E
35
E
30
E
30
E
25
E
20
E
25
E
25
E
25
E
25
E
20
E
20
E
20
E
20
ENE
20
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononononononononononononononononononononon
High Tide
/ height (m)
2:57AM
0.86
1:19PM
0.48
3:31AM
0.85
1:40PM
0.46
4:07AM
0.84
1:57PM
0.45
Low Tide
/ height (m)
9:39AM
0.39
7:52PM
0.05
10:20AM
0.40
8:20PM
0.05
11:06AM
0.42
Thursday
20
Friday
21
Saturday
22
Sunrise---6:43-------6:45-------6:46----
Sunset------5:47-------5:46-------5:46-
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
-------1121-------------
Temp. °C252424242525252424242525252525252424242524252525
Feels °C (?)212120202322222121212323232424242323232424252525
  • 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

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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 Castles Beach 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.

View detailed surf forecast for Castles Beach at:
surf-forecast.com

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