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Castles Beach ratings
Quality on a good day: 2.5
Consistency of Surf: 2.0
Difficulty Level: 3.0
Wind and Kite Surfing: 4.0
Crowds: 3.5

Overall: 3.1

See all 18 ratings

Based on 3 votes. Vote


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Castles Beach Surf Forecast / HAW – Oahu / USA

12 Day Weather and Surf, issued 7 am Tuesday 18 May 2021 HST
Forecast update in  hr  min  s 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 24.8 °C (Statistics for 18 May 1981-2005 - mean: 25.1 max: 26.2 min: 23.6 °C)
Icon breakBreak
Icon legend buoysLive Wave Height (m)
Icon legend windLive Wind Speed (km/h)
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 24.8 °C (Statistics for 18 May 1981-2005 - mean: 25.1 max: 26.2 min: 23.6 °C)

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Oahu

  1. weather stationWind Update Offshore wind reported 5 km from Waikiki (light winds from the ENE at BUOY-OOUH1 5 km from Waikiki).

    Waikiki
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1 h 16 min ago

Moderate
26 km/h
ENE
Onshore
Please reload the page to see if there are any updates.


Best Forecast Surf Conditions for Castles Beach this week:

The surf forecast for Castles Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 23) at 8PM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 1.2m and 8s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Castles Beach in the next 12 days are 2.1m 7s and forecast to arrive on Tuesday (May 18) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 12s period and expected on Sunday (May 23) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 23rd May)5ft (1.5m) 8s
Best Surf 8PM (Sun 23rd May)5ft (1.5m) 8s
Most Powerful 2PM (Tue 18th May)7ft (2.1m) 7s

Table - best surf conditions forecast for Castles Beach over the next 12 days.

Updates in  hr  min  s Update imminent
Rating
(10 max)
Swell
Height Map
Wave Height (m) & direction (?)
Period(s) (?)
Wave
Graph
(?)Metric surfscale
Energy (?)
Wind
(km/h)
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
High Tide
/ height (m)
Low Tide
/ height (m)
Summary
Rain (mm)
High °C
Low °C
Chill °C (?)
Sunrise
Sunset
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
000000000000000000110000000000000000
T hawaiiunitedstates.htsgw.metric.12.cc23
T hawaiiunitedstates.htsgw.metric.36.cc23
T hawaiiunitedstates.htsgw.metric.60.cc23
T hawaiiunitedstates.htsgw.metric.84.cc23
T hawaiiunitedstates.htsgw.metric.108.cc23
T hawaiiunitedstates.htsgw.metric.132.cc23
T hawaiiunitedstates.htsgw.metric.156.cc23
T hawaiiunitedstates.htsgw.metric.180.cc23
T hawaiiunitedstates.htsgw.metric.204.cc23
T hawaiiunitedstates.htsgw.metric.228.cc23
T hawaiiunitedstates.htsgw.metric.252.cc23
T hawaiiunitedstates.htsgw.metric.276.cc23
2
ENE
2
ENE
1.8
ENE
1.7
ENE
1.6
ENE
1.8
ENE
1.6
ENE
1.5
ENE
1.5
ENE
1.4
ENE
1.4
ENE
1.4
ENE
1.5
E
1.3
ENE
0.8
ESE
0.7
NE
0.8
E
1.4
E
1.4
E
1.3
E
1.3
E
1.4
E
1.5
E
1.4
E
1.3
E
1.3
E
0.9
E
1.2
E
1
E
1.1
E
1.1
E
1.1
E
1.2
E
1.2
E
1.1
E
1
E
777777777777778788899998888888888888
394394353305273293240212198214188197214181774786264283258270299328266224224104177117138135137164163137120
35
E
30
ENE
30
E
30
E
30
ENE
30
E
25
E
25
ENE
25
E
20
E
30
ENE
25
E
25
E
25
ENE
20
ENE
20
E
20
E
20
E
20
E
20
ENE
25
E
25
ENE
25
ENE
25
E
30
ENE
30
ENE
30
E
30
ENE
30
ENE
30
E
30
ENE
25
ENE
25
E
25
ENE
25
ENE
20
E
ononononononononononcross-
on
onononcross-
on
onononononononcross-
on
onononononononononononcross-
on
on
8:30PM
0.74
8:26AM
0.35
9:25PM
0.73
10:41AM
0.42
10:13PM
0.72
11:43AM
0.53
10:56PM
0.70
12:30PM
0.64
11:35PM
0.66
1:14PM
0.76
12:12AM
0.62
1:57PM
0.85
12:48AM
0.58
2:41PM
0.92
1:23AM
0.54
3:27PM
0.95
1:57AM
0.50
4:13PM
0.95
2:29AM
0.46
5:03PM
0.92
3:01AM
0.43
5:54PM
0.88
3:32AM
0.40
11:32AM
0.24
5:20AM 1:03PM
0.33 0.30
5:13AM
0.28
3:05PM
0.34
5:29AM
0.22
4:43PM
0.36
5:51AM
0.15
6:01PM
0.36
6:18AM
0.08
7:08PM
0.36
6:48AM
0.02
8:09PM
0.36
7:20AM
-0.02
9:07PM
0.37
7:54AM
-0.04
10:06PM
0.38
8:31AM
-0.04
11:09PM
0.39
9:09AM
-0.01
12:22AM
0.40
9:48AM
0.05
1:54AM
0.39

Note: the tide data above is for Kailua which is 2 km away. Surf properties and timing are calculated for Castles Beach.New forecast is published every 6 hours at www.surf-forecast.com. See detailed tide info and graph
Offshore winds at Castles Beach blow from the W

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
clear
partially cloudy
partially cloudy
thunderstorm
thunderstorm
partially cloudy
clear
partially cloudy
partially cloudy
clear
clear
clear
clear
clear
partially cloudy
clear
clear
clear
clear
partially cloudy
clear
clear
clear
rain shwrsclearclearclearclearclearclearclearclearclearclearrain shwrsrain shwrsclearsome cloudssome cloudsrisk thund- derrisk thund- dersome cloudsclearsome cloudssome cloudsclearclearclearclearclearsome cloudsclearclearclearclearsome cloudsclearclearclear
1----------11---12------------------
232324242423232423242423242423242424242424232323232423232423242423242424
232323232323232423232323232323242424242423232323232423232423232423232423
232324242423232423242423242423242424242424232323232423232423242423242424
5:50--5:50--5:50--5:50--5:50--5:48--5:48--5:48--5:48--5:48--5:48--5:48--
-7:02--7:04--7:04--7:04--7:05--7:05--7:06--7:06--7:07--7:07--7:07--7:07-

Short Range Forecast: Some drizzle, heaviest during Tue morning. Warm (max 24°C on Tue night, min 23°C on Tue morning). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Warm (max 24°C on Fri morning, min 23°C on Fri morning). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 24°C on Mon morning, min 23°C on Mon night). Mainly fresh winds.

Long Range Forecast: Mostly dry. Warm (max 24°C on Thu afternoon, min 23°C on Thu morning). Mainly fresh winds.

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.


Information about the Castles Beach Surf forecast

The above surf forecast table for Castles Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Castles Beach can be found by selecting the local surf guide option on the grey menu. Our Castles Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Castles Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Castles Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Castles is 2 km (1 miles) from Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.