Surf Break

Lat Long: 21.28° N 157.83° W

Number Fours Surf Forecast and Surf Report

Issued: 7 pm 01 Oct 2026 (local time)

Forecast update in  hr  min

Today's Number Fours sea temperature is
27.0°C
0.1° 

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 2 Oct 2026:

  • Best quality surf: Friday 2 Oct, 8AM (local time) - 2.5ft (0.7m), 7s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Thursday 8 Oct, 11PM (local time) - 2.5ft (0.8m), 18s period, SSW swell with 413 kJ wave energy.
  • Next surfable swell (1★+): Friday 2 Oct, 8AM (local time) - 2.5ft (0.7m), 7s 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 Friday (Oct 02) at 8AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.8m and 6s. 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 Thursday (Oct 08) at 11PM. 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 Sunday (Oct 04) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 2nd Oct)2.5ft (0.7m) 7s
Best Surf 8AM (Fri 2nd Oct)2.5ft (0.7m) 7s
Most Powerful11PM (Thu 8th Oct)2.5ft (0.8m) 18s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Thu night. Warm (max 26°C on Thu night, min 25°C on Thu night). Winds increasing (light winds from the ESE on Fri afternoon, fresh winds from the NE by Sun afternoon).

Days 5-7 Weather Summary

Some drizzle, heaviest during Tue morning. Warm (max 26°C on Mon afternoon, min 24°C on Mon night). Winds decreasing (fresh winds from the ENE on Sun night, light winds from the E by Tue night).

Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
Wednesday
7
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
E
7
0.7
E
7
0.6
SSW
13
0.6
SSW
12
0.6
SSW
12
0.8
ENE
8
0.6
S
12
0.4
SSW
20
0.5
S
19
0.7
SSW
18
0.8
SSW
17
0.8
SSW
17
0.8
SSW
16
0.8
SSW
16
0.8
SSW
15
0.9
SSW
15
0.9
SSW
14
0.8
SSW
14
0.7
S
13
Wave Graph
Metric surfscale
Energy kJ
54
45
133
119
115
92
99
128
184
333
399
367
341
324
296
360
297
265
171
Wind (km/h)
15
E
10
E
10
E
20
ENE
20
ENE
25
NE
30
ENE
35
NE
35
NE
30
ENE
35
ENE
30
ENE
30
ENE
20
ENE
20
ENE
10
E
10
ESE
15
ESE
15
ENE
Wind State
cross
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
cross
cross
cross-off
High Tide
9:13AM0.67m
9:28PM0.18m
10:28AM0.67m
11:31PM0.21m
11:34AM0.67m
00:38AM0.28m
12:28PM0.66m
1:25AM0.35m
1:14PM0.63m
2:05AM0.43m
1:53PM0.59m
2:42AM0.50m
Low Tide
00:41AM0.08m
5:54PM0.15m
1:55AM0.12m
6:41PM0.11m
3:40AM0.15m
7:14PM0.09m
5:16AM0.15m
7:41PM0.06m
6:32AM0.14m
8:06PM0.05m
7:35AM0.13m
8:28PM0.03m
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
6:22
—
—
6:22
—
—
6:22
—
—
6:22
—
—
6:22
—
—
6:24
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:19
—
6:17
—
—
6:16
—
—
6:15
—
—
6:15
—
—
6:14
—
—
6:13
—
 mm
3
—
—
—
—
—
—
—
—
—
—
—
—
1
—
—
—
—
—
Temp °C
26
26
26
26
26
26
25
25
26
25
25
26
25
26
26
25
26
26
25
Feels °C
28
28
28
27
25
25
24
22
23
22
22
23
23
25
24
25
27
27
26
  • 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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