Number Threes Surf Break

Lat Long: 21.28° N 157.83° W

Number Threes Surf Forecast and Surf Report

Issued: 1 pm 16 Jul 2026 (local time)

Forecast update in  hr  min

Today's Number Threes sea temperature is
26.4° C
0.2° 

Number Threes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Number Threes surf forecast from 17 Jul 2026:

  • Most powerful swell: Wednesday 22 Jul, 11PM (local time) - 2.5ft (0.7m), 22s period, SSW swell with 489 kJ wave energy.

Best Forecast Surf Conditions for Number Threes this week:

The most powerful waves expected at Number Threes in the next 16 days are 0.7m 22s and forecast to arrive on Wednesday (Jul 22) 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 1.0m 7s period and expected on Saturday (Jul 18) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Wed 22nd Jul)2.5ft (0.7m) 22s

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


The Lowdown

Alright folks, it’s Rusty here. Let’s get into it. It’s a bit of a slow start, but there’s a wild card brewing way out there if you’ve got the patience. The water is sitting at 26°, which is pretty much bang on average for this time of year, so no surprises there.

The first real chance to wet a line comes around Monday the 20th of July at Number Threes (reef). It’s not going to be epic, but we’ll see a pulse of S swell pushing in around 3 ft, mixing with a long period of 16 seconds. That longer period means the waves will have some shape and energy, but they might be a bit fat and straight for a beach setup. The wind is cross-off from the ENE, so the face will be clean. The combined energy is moderate (593). It’s a marginal call, but it’s the first window.

Tuesday the 21st and Wednesday the 22nd are pretty similar, with S swell around 3 ft and a 14-second period, still cross-off winds. The energy is moderate (376 on Tuesday, 660 on Wednesday). It’s gonna be a mushy, inconsistent few days. Nothing to get too excited about, but you won’t be fighting for a wave.

Now, from Thursday the 24th of July into the weekend, the energy starts to ramp up. We’re looking at moderate to strong combined energy (1052 on Friday afternoon, 1421 on Saturday morning). The swell is still mostly SSW, but the period is dropping from 20 seconds down to 17 seconds. Winds are still a solid cross-off from the ENE, so the conditions will be clean. The waves are still small, around 3 ft to 4 ft, so it’s not a big swell, but the energy is climbing.

The real standout is the stretch from Sunday the 26th of July through Tuesday the 28th of July. This is where the swell gets serious. Sunday morning sees 6 ft from the E with a 17-second period, and the combined energy is strong (2673). The wind is a fresh ENE cross-off, so it’s clean. Monday the 27th is the big one – we’re talking 10 ft ENE swell in the morning, ramping to 12 ft in the afternoon, with a 15-second period. The energy is very strong (4895) and it’s a real groundswell. But heads up, at 10 ft plus, this is expert territory only. The wind is a moderate cross-off from the NE, so it’s not a total mess. Tuesday the 28th keeps the party going with 13 ft ENE swell in the morning, a 13-second period, and energy is a beast (5291). Same deal – this is for experienced surfers only. The break is a reef, so it’s got a better chance of handling that long-period swell than a beach break. The wind is a lighter NE cross-off, so it’s still clean.

After that, things drop off fast. Wednesday the 29th of July has a tiny 2 ft S swell, but the wind goes glassy and light in the afternoon. It’s a tiny clean-up day. Thursday the 30th has a bit more size at 5 ft ENE, but the wind is a messy cross-on in the morning, cleaning up by the afternoon. By Friday the 31st, it’s back to the small stuff.

So, the best of the entire forecast is Monday the 27th and Tuesday the 28th of July. That’s a proper, powerful swell hitting Number Threes. It’s going to be big, clean, and for experts only. If you’re not in that league, the Sunday the 26th is a slightly smaller, still strong option. Keep in mind, this is a long-range forecast, so it’s promising but not set in stone.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Thu night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Mon morning, min 24°C on Sun night). Mainly fresh winds.

Thu
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
PM
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
0
1
1
1
2
2
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)
0.6
SSW
17
0.7
SW
14
1.3
ENE
7
0.6
SSW
16
0.6
SSW
14
1.7
ENE
7
1.7
ENE
7
1.6
ENE
8
1.7
ENE
7
1.4
ENE
8
1.4
ENE
8
1.2
ENE
8
0.8
S
16
0.9
S
15
0.9
S
14
0.9
S
14
0.9
S
13
0.7
E
13
0.6
SSW
23
0.6
SSW
22
Wave Graph
Metric surfscale
Energy kJ
195
211
134
196
145
247
302
314
285
243
232
165
321
339
329
302
273
165
426
363
Wind (km/h)
25
ENE
25
ENE
25
ENE
35
ENE
25
ENE
40
ENE
35
ENE
30
NE
25
ENE
30
NE
20
NE
25
ENE
25
NE
20
ENE
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
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
High Tide
5:59PM0.69m
6:41AM0.30m
6:36PM0.61m
7:44AM0.34m
7:11PM0.52m
8:53AM0.38m
7:45PM0.43m
10:04AM0.43m
8:19PM0.34m
11:13AM0.49m
8:56PM0.27m
12:12PM0.54m
10:06PM0.22m
Low Tide
1:08AM0.01m
11:44AM0.08m
1:42AM0.01m
12:46PM0.16m
2:15AM0.02m
2:03PM0.22m
2:48AM0.03m
3:52PM0.27m
3:23AM0.04m
6:20PM0.26m
4:02AM0.05m
8:25PM0.21m
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
5:58
6:00
6:00
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:14
7:14
 mm
Temp °C
26
25
25
26
25
25
25
25
25
25
25
26
26
25
25
26
25
25
26
25
Feels °C
25
25
24
25
24
23
22
23
23
22
23
24
24
24
25
24
23
23
23
23
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  • 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 Threes Surf forecast

The above surf forecast table for Number Threes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Number Threes can be found by selecting the local surf guide option on the grey menu. Our Number Threes 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 Threes) 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 Threes 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 Threes 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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