Aligator Rock surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 7 am Thursday 18 Dec 2025 HST
Forecast update in hr  min  s Forecast update imminent
Aligator Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aligator Rock sea temperature is
25.6° C
(Which is slightly warmer than usual)
Nearby Cam: 3km away, Pipeline Cam powered by EXPLORE.org


How big are the waves at Aligator Rock today?

The current surf forecast for Aligator Rock at 1PM is: 2.2m 13s primary swell from a North-northwest direction (forecast issued at 07:00am December 18). An open ocean swell of 0.6m 8s is not directed at the surf break, a second open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (18 Dec)7ft (2.1m)14s
Afternoon (18 Dec)7ft (2.2m)13s
Evening (18 Dec)6.5ft (2.0m)12s

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

Updates in  hr  min  s Forecast update imminent
Thursday
18
Friday
19
Saturday
20
Sun
21
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
2
3
2
1
1
3
3
3
3
4
2
2
3
3
3
3
3
3
4
4
4
4
4
4
Swell
Height Map
Wave Height (m) & direction (?)
1.3
NNW
2.1
NW
1.7
NNW
2.2
NNW
2
NNW
2
NNW
2
NNW
1.8
NNW
1.8
NNW
2
NNW
1.8
NNW
1.9
NNW
1.9
NNW
1.8
NNW
1.8
NNW
1.8
N
1.8
N
1.7
N
1.7
N
1.6
N
2
N
2
N
1.9
N
1.8
N
Period(s) (?)151413131312121212121111111111111111111113131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6561549105815971259116411089449281066866874858821821819819720695617134913051036885
Wind
(km/h)
15
SSW
10
SSW
15
SSW
20
SW
15
SW
10
SSW
10
SSW
10
SSW
5
S
10
S
5
S
5
SW
5
SW
0
E
5
E
5
SSE
5
SE
5
SE
5
ESE
5
NE
10
NE
15
E
15
E
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscross-
on
cross-
on
cross-
on
crosscross-
on
crosscrosscross-
off
crosscross-
on
glassglassglassglassglassglassglassglasscross-
off
offoffoff
High Tide
/ height (m)
2:20AM
0.52
1:47PM
0.14
2:53AM
0.53
2:25PM
0.13
3:26AM
0.53
3:03PM
0.12
Low Tide
/ height (m)
8:45AM
0.07
6:08PM
-0.02
9:20AM
0.06
6:41PM
-0.03
9:55AM
0.05
7:15PM
-0.03
Thursday
18
Friday
19
Saturday
20
Sun
21
Sunrise-7:03-------7:03-------7:05------
Sunset----5:52-------5:52-------5:53---
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
cloud
thunderstorm
clear
cloud
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
cloud
clear
clear
thunderstorm
thunderstorm
thunderstorm
part cloud
cloud
Rain (mm)
11-11-1----111-----211--
Temp. °C232325262624242323232526252424242324252525242323
Feels °C (?)242425262626262526252728282827272627282827252424
  • 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

Latest Updates

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 Aligator Rock 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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