Surf Break

Lat Long: 21.28° N 157.83° W

Number Fours Surf Forecast and Surf Report

Issued: 7 am 05 Oct 2026 (local time)

Forecast update in  hr  min

Today's Number Fours sea temperature is
27.2°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 5 Oct 2026:

  • Best quality surf: Saturday 10 Oct, 11AM (local time) - 2.5ft (0.8m), 20s period, S swell with glassy winds.
  • Most powerful swell: Sunday 11 Oct, 5AM (local time) - 3.5ft (1.0m), 18s period, S swell with 620 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 6 Oct, 11PM (local time) - 3ft (0.9m), 15s period with SSW 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 Tuesday (Oct 06) at 11PM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 0.6m 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 1.0m 18s and forecast to arrive on Sunday (Oct 11) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 11s period and expected on Saturday (Oct 10) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 6th Oct)3ft (0.9m) 15s
Best Surf11AM (Sat 10th Oct)2.5ft (0.8m) 20s
Most Powerful 5AM (Sun 11th Oct)3.5ft (1.0m) 18s

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


Short Range Forecast

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

Days 4-6 Weather Summary

Moderate rain (total 19mm), heaviest on Thu night. Warm (max 27°C on Thu afternoon, min 24°C on Sat night). Wind will be generally light.

Monday
5
Tuesday
6
Wednesday
7
Thursday
8
Friday
9
Saturday
10
Sunday
11
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
0
0
0
2
0
0
0
0
0
2
3
3
3
2
3
2
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
17
0.8
SSW
17
0.8
SSW
16
0.8
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
14
0.8
SSW
14
0.8
SSW
14
0.6
S
18
0.6
S
18
0.7
S
18
0.9
SSW
17
0.9
S
16
0.8
SSW
16
0.8
S
20
0.8
S
19
0.9
S
18
0.7
S
18
0.7
S
16
0.7
S
16
Wave Graph
Metric surfscale
Energy kJ
399
367
341
324
318
355
297
265
247
243
230
300
487
422
329
485
472
504
294
249
246
Wind (km/h)
30
ENE
30
NE
20
ENE
20
ENE
20
ENE
10
SE
15
SSW
15
SW
5
SSW
15
S
15
S
15
S
20
SSW
15
SW
5
WNW
5
E
5
NNE
10
NNE
5
NE
10
NNE
10
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
glassy
on
on
on
on
cross-on
glassy
glassy
glassy
off
cross-off
cross-off
cross-off
High Tide
12:28PM0.66m
1:25AM0.35m
1:14PM0.63m
2:05AM0.43m
1:53PM0.59m
2:42AM0.50m
2:29PM0.54m
3:17AM0.56m
3:02PM0.48m
3:52AM0.61m
3:33PM0.42m
4:26AM0.64m
4:04PM0.37m
Low Tide
7:41PM0.06m
6:32AM0.14m
8:06PM0.05m
7:35AM0.13m
8:28PM0.03m
8:30AM0.13m
8:50PM0.02m
9:21AM0.13m
9:11PM0.02m
10:11AM0.14m
9:33PM0.02m
11:01AM0.15m
9:54PM0.04m
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
rain showers
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
—
—
6:22
—
—
6:24
—
—
6:24
—
—
6:24
—
—
6:24
—
—
6:24
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:15
—
—
6:14
—
—
6:13
—
—
6:12
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—
6:12
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—
6:10
—
—
6:09
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 mm
—
—
—
—
—
—
—
—
—
1
1
9
4
1
1
—
2
—
—
—
—
Temp °C
25
26
25
26
26
25
25
26
25
26
27
26
27
27
26
25
26
25
25
25
24
Feels °C
23
24
23
26
26
25
27
26
27
27
28
29
27
27
28
29
30
28
27
27
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
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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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