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Surf Forecasts:

Number Fours surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 7 pm Thursday 22 Jan 2026 HST
Forecast update in hr  min  s Forecast update imminent
Number Fours surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Number Fours sea temperature is
24.8° C
 (Which is slightly warmer than usual)

How big are the waves at Number Fours today?

The current surf forecast for Number Fours at 1AM is: 0.7m 8s primary swell from a East direction and 0.7m 7s secondary swell from a East-northeast direction (forecast issued at 07:00pm January 22). An open ocean swell of 0.8m 12s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (HST) & DateWave HeightWave Period
Morning (23 Jan)2.5ft (0.8m)8s
Afternoon (23 Jan)2ft (0.6m)8s
Evening (23 Jan)2ft (0.6m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
22
Friday
23
Saturday
24
Sunday
25
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM
Rating
(10 max)
0
1
0
1
1
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 (?)
0.8
ENE
0.7
ENE
0.7
E
0.7
E
0.7
E
0.7
ENE
0.9
ENE
0.6
E
0.6
E
0.6
E
0.5
E
0.5
E
0.6
E
0.9
ENE
0.8
ENE
0.8
ENE
0.5
E
0.5
E
0.5
E
0.6
E
0.6
E
0.6
E
0.5
E
0.5
E
Period(s) (?)788888888888888888877777
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7358555757628744454531314410779772828284040392626
Wind
(km/h)
20
NE
15
NE
15
E
5
WNW
10
NNE
20
NE
20
NE
20
ENE
20
ENE
20
NE
20
NE
20
ENE
20
ENE
15
E
10
ESE
10
S
10
S
5
SSE
5
S
5
W
5
W
5
NW
5
W
5
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		crosscross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crossonononglassglasscrossglassglasscross-
on
High Tide
/ height (m)
7:15PM
0.34
6:47AM
0.50
8:21PM
0.38
7:20AM
0.42
9:37PM
0.45
7:55AM
0.33
Low Tide
/ height (m)
12:25AM
0.14
1:45PM
0.01
1:40AM
0.20
2:19PM
-0.00
3:34AM
0.25
Thursday
22
Friday
23
Saturday
24
Sunday
25
Sunrise-----7:09-------7:09-------7:09--
Sunset6:14-------6:15-------6:15-------
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
rain showers
clear
clear
clear
clear
clear
part cloud
clear
clear
Rain (mm)
-------------131--------
Temp. °C232323222222232323232323232324242424232323222424
Feels °C (?)222322212120212121222222222325242525252525242625
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 Number Fours 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 Number Fours at:
surf-forecast.com

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