Number Fours Surf Break

Lat Long: 21.28° N 157.83° W

Issued: 1 pm 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Number Fours sea temperature is
26.1° 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 19 Jun 2026:

  • Best quality surf: Thursday 18 Jun, 11PM (local time) - 3.5ft (1.0m), 14s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 24 Jun, 2PM (local time) - 2.5ft (0.8m), 18s period, SSW swell with 408 kJ wave energy.
  • Next surfable swell (1★+): Thursday 18 Jun, 11PM (local time) - 3.5ft (1.0m), 14s period with S 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 Thursday (Jun 18) at 11PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.5m and 5s. 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 0.8m 18s and forecast to arrive on Wednesday (Jun 24) at 2PM. 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 6s period and expected on Wednesday (Jun 24) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 18th Jun)3.5ft (1.0m) 14s
Best Surf11PM (Thu 18th Jun)3.5ft (1.0m) 14s
Most Powerful 2PM (Wed 24th Jun)2.5ft (0.8m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Sun afternoon, min 24°C on Sun night). Winds increasing (light winds from the ENE on Sun afternoon, fresh winds from the ENE by Wed morning).

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
2
1
1
2
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
S
14
0.9
S
14
0.8
S
13
0.8
S
13
0.7
S
13
0.6
S
12
0.5
S
15
0.5
S
15
0.5
S
20
0.5
S
19
0.6
S
18
0.5
S
18
0.6
S
16
0.5
S
16
0.4
S
11
1.3
ENE
6
0.5
S
19
0.7
SSW
18
0.8
SSW
18
2
ENE
7
1.6
ENE
7
Wave Graph
Metric surfscale
Energy kJ
423
320
219
219
166
99
110
106
186
184
221
150
186
131
41
117
190
318
408
352
266
Wind (km/h)
0
ENE
5
NE
10
E
10
SE
15
NE
15
E
20
ENE
20
ENE
15
ENE
15
NE
20
ENE
20
ENE
25
ENE
30
ENE
30
ENE
35
ENE
30
ENE
40
ENE
40
ENE
35
ENE
35
ENE
Wind State
glassy
glassy
cross
cross-on
cross-off
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
High Tide
7:15PM0.65m
8:27AM0.21m
7:59PM0.56m
9:48AM0.27m
8:42PM0.47m
11:01AM0.35m
9:26PM0.38m
12:01PM0.42m
10:12PM0.30m
12:49PM0.49m
11:05PM0.24m
1:30PM0.55m
00:04AM0.20m
Low Tide
2:48AM-0.02m
12:52PM0.10m
3:27AM-0.03m
2:14PM0.17m
4:03AM-0.03m
3:59PM0.22m
4:37AM-0.02m
5:57PM0.23m
5:09AM-0.02m
7:40PM0.20m
5:40AM-0.02m
8:56PM0.16m
6:13AM-0.02m
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:50
5:50
5:50
5:50
5:50
5:50
<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
7:15
 mm
Temp °C
26
26
26
26
25
25
26
26
25
26
25
25
26
24
25
25
24
25
25
24
25
Feels °C
29
30
28
29
27
27
27
26
25
26
25
24
24
22
22
22
21
22
22
21
22
Swell 1
Height (m)
Direction
Period (s)
1
S
14
0.9
S
14
0.8
S
13
0.8
S
13
0.7
E
5
0.6
E
5
0.6
S
12
0.5
S
12
0.7
S
13
0.6
S
13
0.6
S
18
0.6
NE
11
0.6
NE
10
0.6
NE
10
0.6
NE
10
0.4
SSW
15
0.5
S
19
0.7
SSW
18
0.8
SSW
18
0.7
S
16
0.7
SSW
16
Energy kJ
423
320
219
219
27
20
97
69
173
123
221
73
69
61
60
73
190
318
408
251
266
Swell 2
Height (m)
Direction
Period (s)
0.6
E
5
0.6
E
5
0.4
NE
6
0.7
E
6
0.7
S
13
0.6
S
12
0.5
S
15
0.5
S
15
0.5
S
20
0.5
S
19
0.6
S
13
0.5
S
12
0.6
S
16
0.5
S
16
0.4
N
7
0.4
N
8
0.4
SSW
16
0.3
N
8
0.3
SSE
10
0.2
N
8
0.3
SSE
9
Energy kJ
18
20
14
30
166
99
110
106
186
184
117
71
186
131
17
18
82
12
18
5
16
Swell 3
Height (m)
Direction
Period (s)
0.4
NE
9
0.4
NE
9
0.4
SSW
19
0.4
S
18
0.5
S
16
0.4
S
16
0.3
NE
8
0.4
SW
18
0.4
NE
8
0.5
NE
8
0.6
NE
11
0.5
S
18
0.5
S
12
0.4
S
12
0.4
S
11
0.4
S
11
0.3
N
8
0.3
NNE
8
0.2
NNW
8
0.1
SW
12
0.2
SSW
19
Energy kJ
28
27
115
99
139
81
9
78
23
29
76
150
69
44
41
38
12
13
7
6
37
Wind waves
Height (m)
Direction
Period (s)
0.7
E
5
0.6
E
5
0.7
E
5
0.6
E
5
0.6
E
4
0.6
E
4
0.6
E
5
0.6
E
5
1
E
5
1
E
6
1.3
ENE
6
1.5
ENE
6
1.5
ENE
6
1.5
ENE
6
2
ENE
7
1.6
ENE
7
Energy kJ
25
20
23
16
15
12
15
18
56
64
117
167
156
149
352
244
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
2
2
2
2
2
2
2
1
2
1
1
1
2
2
1
2
2
Distance (km)
0
0
1
46
0
1
1
1
1
1
1
31
1
31
39
39
31
39
127
31
31
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
1
2
2
2
2
2
2
2
2
2
2
1
1
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
2
3
2
2
2
2
2
3
2
2
3
3
3
3
1
2
3
2
2
3
3
Header Global
Rating
(10 max)
5
6
4
4
5
8
9
7
7
6
6
6
5
6
5
5
7
6
7
9
7
  • 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
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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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