Number Fours Surf Break

Lat Long: 21.28° N 157.83° W

Number Fours Surf Forecast and Surf Report

Issued: 7 am 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Number Fours sea temperature is
26.3° C
0.2° 

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 15 Jul 2026:

  • Best quality surf: Wednesday 15 Jul, 5AM (local time) - 2.5ft (0.7m), 17s period, SW swell with cross-offshore winds.
  • Most powerful swell: Sunday 19 Jul, 8AM (local time) - 5.5ft (1.7m), 8s period, ENE swell with 345 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 15 Jul, 5AM (local time) - 2.5ft (0.7m), 17s period with SW 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 15) at 5AM. The primary swell is predicted to be 0.7m and 17s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Number Fours in the next 16 days are 1.7m 8s and forecast to arrive on Sunday (Jul 19) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Tuesday (Jul 14) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 15th Jul)2.5ft (0.7m) 17s
Best Surf 5AM (Wed 15th Jul)2.5ft (0.7m) 17s
Most Powerful 8AM (Sun 19th Jul)5.5ft (1.7m) 8s

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


The Lowdown

Alright, this is Rusty comin' at ya from the shoreline. Let's have a look at what's on the table for Number Fours over the next couple of weeks.

First off, I gotta be straight with you – the next few days are looking pretty flat out there. The water is a warm 79°, which is pretty average for this time of year, so no surprises there. But the surf? It's a bit of a tough stretch. For the first week, going into late July, the swell is tiny and the energy is just not there. You'll see a few waves around 2 feet but the wind is gonna be a problem. We've got a persistent cross-offshore breeze from the ENE, but it's fresh, gusting up to 22 mph, which will mess up what little shape there is. It's going to be a lot of waiting for a small, bumpy wave. Not the kind of thing that gets you out of bed.

Honestly, the first standout worth mentioning doesn't show up until around the 23rd of July. That morning, Number Fours gets a little pulse of SSW groundswell. We're looking at a small 2 feet wave, but the period is a juicy 21 seconds – that's a very long period groundswell. The energy is moderate, with a reading of 645. The wind is still a cross-offshore breeze, but it's a lighter 12 mph, keeping things reasonably clean. This is a reef break, so that long period swell will wrap in nicely, giving you a proper, lined-up wave. It's a small wave, but it'll have way more push and shape than anything before it. It's an intermediate spot, but with these tiny waves, even a beginner could have a go.

The real highlight, and the best bet of the whole outlook, looks like the 26th and 27th of July. The swell is from the east, and it's picking up to around 4 feet. The period is a solid 16 seconds, so it's a proper groundswell with some grunt to it. The energy reading jumps up to strong territory, around 900, so there's plenty of push. The wind is still cross-offshore from the ENE, but it's a manageable 15 to 19 mph. It's a bit breezy, but at this spot, that cross-off wind will keep the faces clean. This is the best run of surf. The wave size is still very manageable for intermediates, and you'll get some long, peeling walls. The crowd factor is "sometimes" here, so you might have a few friends out, but it's not a circus.

If you're looking to get wet, hold out for those last few days of July. The Saturday and Sunday the 20th and 21st are marginal, but the real promise is the 23rd, and then the 26th and 27th are the ones to circle on the calendar. It's a long wait, but it looks like a decent little run of clean, well-shaped surf.

Stay patient, and I'll see you out there.

Rusty

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed afternoon. Warm (max 26°C on Tue afternoon, min 24°C on Tue morning). Winds increasing (light winds from the ENE on Tue night, fresh winds from the ENE by Thu afternoon).

Days 4-6 Weather Summary

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

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
14
0.8
SSW
14
0.7
SW
13
0.7
SW
13
0.7
SW
14
0.8
SSW
16
0.6
SSW
16
0.6
SSW
17
0.7
SSW
14
0.5
SW
16
0.6
SSW
16
1.4
ENE
7
1.4
ENE
7
0.6
SSW
14
1.5
E
7
1.6
ENE
8
1.5
ENE
8
1.4
ENE
8
1.3
ENE
7
0.8
S
16
0.8
S
15
Wave Graph
Metric surfscale
Energy kJ
239
232
170
162
203
314
175
195
183
125
196
180
175
160
231
316
277
243
172
321
271
Wind (km/h)
20
ENE
25
NE
15
ENE
15
E
15
E
15
ENE
20
E
35
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
35
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
ENE
Wind State
cross-off
cross-off
cross-off
cross
cross
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
cross-off
cross-off
cross-off
High Tide
4:39PM0.80m
4:45AM0.22m
5:20PM0.76m
5:41AM0.26m
5:59PM0.69m
6:41AM0.30m
6:36PM0.61m
7:44AM0.34m
7:11PM0.52m
8:53AM0.38m
7:45PM0.43m
10:04AM0.43m
8:19PM0.34m
Low Tide
9:06AM-0.08m
11:59PM0.01m
9:57AM-0.04m
00:34AM0.01m
10:49AM0.01m
1:08AM0.01m
11:44AM0.08m
1:42AM0.01m
12:46PM0.16m
2:15AM0.02m
2:03PM0.22m
2:48AM0.03m
3:52PM0.27m
3:23AM0.04m
clear
clear
clear
clear
rain showers
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:58
5:58
5:58
5:58
5:58
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:15
7:15
 mm
1
2
Temp °C
25
26
25
25
26
25
26
26
25
25
26
25
25
26
25
25
25
24
25
25
25
Feels °C
24
24
25
25
27
25
26
24
23
23
24
23
23
23
23
22
22
22
24
23
25
  • 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