Number Fours Surf Break

Lat Long: 21.28° N 157.83° W

Issued: 1 am 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Number Fours sea temperature is
26.4° C

Normal for this time of year

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 3 Jul 2026:

  • Most powerful swell: Tuesday 7 Jul, 8PM (local time) - 8ft (2.4m), 8s period, ENE swell with 672 kJ wave energy.

Best Forecast Surf Conditions for Number Fours this week:

The most powerful waves expected at Number Fours in the next 16 days are 2.4m 8s and forecast to arrive on Tuesday (Jul 07) 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 1.7m 8s period and expected on Friday (Jul 03) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Tue 7th Jul)8ft (2.4m) 8s

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


Updates in  hr  min  s Forecast update imminent

Alright, surfers, Rusty here, and I've got a look at what's cookin' at Number Fours. It's a bit of a mixed bag, so let's get into it.

Right off the bat, the water's sitting at a balmy 80°, which is pretty much average for this time of year, so no surprises there.

We're looking at a rocky start. The first week is a real grind. From Friday, July 3rd, right through to the end of the week, the conditions are just off. We've got a persistent cross-off wind from the ENE blowing at 18 to 25 mph that's really messing with the quality. The swell is there, but it's short-period windswell – around 7 or 8 seconds – and it's just not shaping up. The combined energy is moderate, but the raw numbers don't tell the story of the chop. It’s going to be a battle out there, and the surf just isn't worth paddling out for. Honestly, a lot of this period looks more suited for kitesurfing than traditional paddle surfing, especially when you see the swell pushing up to 8 ft on the 7th with that messy energy.

There's a glimmer of hope, but it's a long wait. The one standout, the session you've been waiting for, is Tuesday, July 14th. The afternoon looks like a proper window. The wind drops right back to a light 6 mph breeze, turning it cross-off and glassy. The swell is a small 2 ft from the SW with a 14-second period. That's that long-period groundswell energy, and while the size is tiny, the quality will be there. It's a reef break, and that long period will wrap in nicely. Expect clean lines and smooth walls. The combo of that glassy wind and the clean shape is a major positive. The crowds might be around sometimes, but on a Tuesday afternoon with small waves, it shouldn't be too hectic.

After that little teaser, we're back into the mire. The rest of the second week is dominated by that same fresh cross-off wind and inconsistent, short-period swell. Nothing really stands out as worth the effort. It's a dry spell that runs for days on end.

So, to wrap it up: if you're after a surf, hold your horses. The best bet by a long shot is to pencil in the afternoon of Tuesday, July 14th. It's a promise, not a guarantee this far out, but it's the only real chance for a clean, fun session on the reef.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Fri morning, min 24°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Mon morning, min 24°C on Mon morning). Mainly fresh winds.

Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
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
1
1
1
1
0
0
0
0
0
1
0
1
0
1
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
ENE
8
1.5
ENE
8
1.6
ENE
8
1.7
ENE
8
0.7
S
20
0.8
SSW
19
0.8
SSW
18
0.8
SSW
18
2.1
ENE
7
2
ENE
7
2.1
ENE
7
2.2
ENE
7
2.1
ENE
8
2.3
ENE
7
2.2
ENE
7
1.8
ENE
7
1.9
ENE
7
2
ENE
7
1.9
ENE
7
1.8
ENE
7
1.5
ENE
7
Wave Graph
Metric surfscale
Energy kJ
253
271
310
327
377
486
418
408
462
417
475
498
469
588
512
363
379
417
358
299
209
Wind (km/h)
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
40
ENE
40
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
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
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
6:33PM0.61m
7:25AM0.23m
7:06PM0.55m
8:31AM0.28m
7:40PM0.49m
9:42AM0.35m
8:17PM0.41m
10:50AM0.43m
9:01PM0.34m
11:51AM0.52m
10:00PM0.26m
12:45PM0.61m
11:18PM0.20m
Low Tide
11:12AM0.06m
1:57AM0.03m
12:01PM0.11m
2:26AM0.02m
1:05PM0.17m
2:56AM0.01m
2:35PM0.23m
3:29AM-0.00m
4:35PM0.25m
4:06AM-0.02m
6:43PM0.23m
4:48AM-0.04m
8:17PM0.17m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:54
5:54
5:54
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:16
7:16
7:16
7:16
7:16
7:16
 mm
Temp °C
25
25
25
25
25
24
25
25
24
25
25
24
25
25
24
25
25
24
25
25
24
Feels °C
24
22
23
22
22
21
22
22
21
21
21
21
21
21
20
21
22
21
21
21
21
Swell 1
Height (m)
Direction
Period (s)
0.5
SSW
17
0.6
SSW
16
0.5
SSW
16
0.7
SSW
16
0.7
S
20
0.8
SSW
19
0.8
SSW
18
0.8
SSW
18
0.9
SSW
16
0.8
SSW
16
0.9
SSW
15
0.8
SSW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
0.7
SSW
14
0.7
SSW
13
0.6
S
13
0.6
S
12
0.5
S
12
1.5
ENE
7
Energy kJ
168
208
146
212
377
486
418
408
457
337
402
284
280
273
250
192
187
125
112
78
209
Swell 2
Height (m)
Direction
Period (s)
0.5
SW
13
0.4
SSW
12
0.4
SSW
12
0.6
S
21
0.6
SSW
16
0.4
SSW
14
0.6
SSW
14
0.4
SSW
14
0.2
SSW
13
0.2
SSE
9
0.2
SSE
9
0.1
SE
8
0.2
SSE
8
0.1
SE
8
0.1
SE
10
0.2
SSE
8
0.2
SSE
8
0.1
SE
8
0.2
SSE
8
0.2
W
15
0.5
S
12
Energy kJ
85
60
59
326
162
69
138
78
17
8
8
3
7
3
4
7
7
3
6
18
75
Swell 3
Height (m)
Direction
Period (s)
0.2
S
13
0.2
SSE
9
0.4
SSW
22
0.2
SSW
16
0.3
SSW
11
0.4
SW
15
0.2
SSE
11
0.3
E
9
0.2
SSE
10
0.2
SSW
13
0.1
W
10
0.1
SE
10
0.1
S
10
0.1
S
10
0.1
S
18
0.1
W
18
0.2
W
17
0.2
SSE
8
0.3
W
15
Energy kJ
13
8
164
25
23
54
11
15
9
17
2
4
2
2
6
6
22
6
38
Wind waves
Height (m)
Direction
Period (s)
1.5
ENE
8
1.5
ENE
8
1.6
ENE
8
1.7
ENE
8
1.6
ENE
8
1.7
ENE
7
1.7
ENE
7
1.7
ENE
7
2.1
ENE
7
2
ENE
7
2.1
ENE
7
2.2
ENE
7
2.1
ENE
8
2.3
ENE
7
2.2
ENE
7
1.8
ENE
7
1.9
ENE
7
2
ENE
7
1.9
ENE
7
1.8
ENE
7
Energy kJ
253
271
310
327
310
327
310
302
462
417
475
498
469
588
512
363
379
417
358
299
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
3
1
3
3
3
2
1
1
2
2
2
2
2
1
1
1
1
1
Distance (km)
31
39
31
31
39
31
39
42
39
126
126
31
42
39
39
39
39
32
39
46
31
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
3
2
3
3
3
2
2
2
2
2
2
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
3
2
3
3
3
3
2
2
4
2
3
4
3
2
4
1
2
4
Header Global
Rating
(10 max)
5
5
5
4
5
9
7
5
6
8
7
5
5
9
9
9
5
6
6
7
7
  • 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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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.

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