Surf Break

Lat Long: 21.28° N 157.83° W

Number Fours Surf Forecast and Surf Report

Issued: 7 am 14 Oct 2026 (local time)

Forecast update in  hr  min

Today's Number Fours sea temperature is
27.1°C
0.3° 

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 14 Oct 2026:

  • Most powerful swell: Monday 19 Oct, 8AM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,026 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 3.0m 8s and forecast to arrive on Monday (Oct 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 1.5m 6s period and expected on Thursday (Oct 15) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Mon 19th Oct)10ft (3.0m) 8s

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


Short Range Forecast

Some drizzle, heaviest during Wed night. Warm (max 26°C on Wed afternoon, min 24°C on Wed morning). Winds increasing (light winds from the NE on Wed morning, strong winds from the ENE by Fri night).

Days 4-6 Weather Summary

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

Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
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
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
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)
0.6
S
12
0.6
S
12
0.5
S
20
0.5
S
19
0.5
S
18
0.6
S
17
1.7
ENE
6
1.8
ENE
6
2.2
ENE
7
1.7
ENE
7
1.7
ENE
7
2
ENE
7
2.1
ENE
7
2.1
ENE
7
2.5
ENE
8
3
ENE
8
2.3
ENE
8
2
ENE
8
1.9
ENE
8
1.8
ENE
8
1.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
100
98
186
181
157
197
212
269
445
262
273
350
443
469
886
1026
669
462
385
368
385
Wind (km/h)
15
ENE
20
NE
25
ENE
35
ENE
35
ENE
30
ENE
35
ENE
40
ENE
40
ENE
30
ENE
35
ENE
30
ENE
40
ENE
35
ENE
35
ENE
40
ENE
40
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
5:40PM0.23m
7:15AM0.62m
6:30PM0.20m
8:15AM0.59m
8:33PM0.18m
9:23AM0.58m
11:02PM0.21m
10:27AM0.57m
00:02AM0.25m
11:21AM0.56m
00:39AM0.31m
12:05PM0.55m
1:10AM0.37m
Low Tide
2:10PM0.19m
11:06PM0.10m
3:50PM0.19m
11:35PM0.13m
5:23PM0.17m
00:18AM0.16m
6:07PM0.15m
1:50AM0.19m
6:32PM0.13m
3:48AM0.21m
6:52PM0.11m
5:16AM0.20m
7:10PM0.09m
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
—
—
6:26
—
—
6:26
—
—
6:26
—
—
6:28
—
—
6:28
—
—
6:28
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:07
—
—
6:07
—
—
6:06
—
—
6:05
—
—
6:04
—
—
6:02
—
—
6:02
—
 mm
—
—
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
—
1
Temp °C
25
26
25
26
26
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Feels °C
26
26
25
23
23
22
22
21
22
22
22
22
21
21
21
20
20
21
22
21
21
  • 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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