Number Fours Surf Break

Lat Long: 21.28° N 157.83° W

Number Fours Surf Forecast and Surf Report

Issued: 1 pm 24 Jul 2026 (local time)

Forecast update in  hr  min

Today's Number Fours sea temperature is
26.7° C
0.4° 

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


Number Fours surf forecast from 25 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 2AM (local time) - 10ft (3.0m), 12s period, ENE swell with offshore winds.
  • Most powerful swell: Tuesday 28 Jul, 8PM (local time) - 10ft (3.0m), 13s period, ENE swell with 2,951 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 2AM (local time) - 10ft (3.0m), 12s period with ENE swell.

Best Forecast Surf Conditions for Number Fours this week:

The surf forecast for Number Fours over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 2AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.6m and 14s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Number Fours in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Jul 28) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Saturday (Jul 25) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 29th Jul)10ft (3.0m) 12s
Best Surf 2AM (Wed 29th Jul)10ft (3.0m) 12s
Most Powerful 8PM (Tue 28th Jul)10ft (3.0m) 13s

Table - best surf conditions forecast for Number Fours over the next 16 days.


The Lowdown

Alright, mates, Rusty here. Let’s break down what’s cookin’ for Number Fours over the next couple of weeks.

We’re starting off a bit slow. The first few days are looking pretty average – there’s swell, but it’s short-period, lumpy ENE windswell, and the wind is blowin’ hard. Not really worth gettin’ wet for. Then, we get a bit of a window.

The real standout is shaping up for Wednesday, July 29th. The morning will be the pick of the whole run. We’ve got a solid 8 ft of ENE groundswell (period 11 seconds) comin’ in, and the wind is only a light 5 km/h from the NNE. That’s a cross-off breeze, keeping the face clean. The combined energy is strong (1651), and it’s got real grunt. This is going to be proper, powerful surf. It’s a bit much for the beginners – over 8 ft means it’s a serious wave, but for the experienced crew, it’ll be firing. The water temp is sittin’ at 80°, which is about average for this time of year. The afternoon of that same day, the wind goes glassy, completely off the dial, and the swell drops to 6 ft (720 energy). It’ll be a bit more user-friendly, but that morning session is the one to chase.

Before that, we have a little run from Thursday, July 24th through Tuesday, July 28th. It’s a mixed bag. You’ll see wave heights from 3 ft to 8 ft, but the wind is a persistent, fresh ENE breeze, keepin’ it all a bit clean but strong. The swell periods are mostly short, under 10 seconds, so the waves will be a bit weak and crumbly. There’s a small window of long-period SSW energy on the 25th and 26th, but it’s only 3 ft – not enough grunt to get excited about. The energy values are mostly in the moderate to strong range (693 to 1673), but the wind just isn't cooperating to make it truly magical.

After the 29th, things get a bit dicey again. From the 31st of July through the 1st of August, the wind kicks back up to 40 km/h, and the swell gets messy. The forecaster is calling it poor surf, and I’d agree – that’s a kite-surfing wind, not a paddle-surfing wind. The beach setup would be more fun on a kite board.

Then we get a bit of a lull. The 2nd and 3rd of August offer some long-period (15-16 second) swell, but it’s only about 3 ft high (1100 energy). That’s a lot of water moving but not a lot of wave face. It’s a classic groundswell situation where the long period might make it break too straight for the beach, but it could be fun on a point or reef if you can find the right bank. The 5th of August has a small window of gentler cross-shore wind, but the swell is still just 5 ft of short-period stuff.

From the 6th of August onward, we’re back into the wind. It’s a steady 35-40 km/h from the ENE, with swell bumping up to 8 ft again, but the wind is a disaster. The energy is high (over 1000), but it’ll be a choppy, blown-out mess. Not worth the effort.

So, in summary: Wednesday, July 29th morning is your absolute standout. Get on it. The rest of the window is a wait-and-see game, with a couple of promising but not perfect days. The run from the 31st of July onward is a write-off until the wind backs off. Stay patient, and keep an eye on the charts.

Rusty

Short Range Forecast

Mostly dry. Warm (max 26°C on Sat afternoon, min 24°C on Fri night). Mainly strong winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Tue afternoon, min 25°C on Mon night). Winds decreasing (fresh winds from the NE on Mon afternoon, calm by Wed afternoon).

Fri
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
2
1
2
2
2
2
2
2
3
3
2
4
4
3
2
3
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
ENE
7
2.1
ENE
7
1.9
ENE
8
0.9
SSW
18
0.9
SSW
18
0.9
SSW
16
1.1
E
14
1.3
E
15
1.4
E
14
1.5
E
13
2.4
ENE
13
2.1
E
13
2.5
E
13
3
ENE
12
2.5
ENE
11
1.7
ENE
10
1.5
ENE
9
1.6
ENE
8
1.5
ENE
8
1.6
E
8
Wave Graph
Metric surfscale
Energy kJ
428
456
419
578
547
469
499
706
764
780
2088
1520
2364
2413
1439
528
307
314
246
292
Wind (km/h)
40
ENE
35
ENE
30
ENE
35
ENE
30
ENE
30
ENE
35
ENE
30
ENE
25
ENE
30
NE
20
NE
25
NE
25
NE
15
NNE
10
NNE
5
NNW
5
ENE
15
ENE
15
ENE
20
ENE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
High Tide
00:59AM0.18m
2:22PM0.66m
1:51AM0.19m
2:56PM0.68m
2:32AM0.21m
3:29PM0.70m
3:10AM0.23m
3:59PM0.70m
3:49AM0.25m
4:29PM0.70m
4:28AM0.28m
4:58PM0.68m
Low Tide
9:41PM0.14m
6:23AM0.04m
10:05PM0.12m
7:08AM0.02m
10:27PM0.11m
7:51AM0.01m
10:49PM0.10m
8:31AM0.01m
11:11PM0.09m
9:09AM0.01m
11:34PM0.08m
9:48AM0.03m
11:58PM0.07m
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:13
7:13
7:13
7:12
7:12
7:10
7:10
 mm
Temp °C
25
25
25
26
24
25
25
25
25
26
25
26
27
26
26
27
26
27
27
26
Feels °C
21
22
22
23
20
22
22
23
23
24
24
26
27
27
29
31
30
30
28
27
  • 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 
submit an eyeball surf report

Quick surf report for Number Fours:

join our community of surf reporters

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.


Information about the Number Fours Surf forecast

The above surf forecast table for Number Fours provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Number Fours can be found by selecting the local surf guide option on the grey menu. Our Number Fours 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 (Number Fours) 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 Number Fours 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.

Number Fours is 5 km (3 miles) from Honolulu. If you plan a vacation in Oahu, look for hotels and other accommodation in Honolulu. Honolulu has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest