Number Threes surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 1 am Tuesday 31 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Number Threes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Number Threes sea temperature is
24.2° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Number Threes this week:

The surf forecast for Number Threes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Apr 06) at 5AM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 1.0m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Number Threes in the next 16 days are 1.5m 8s and forecast to arrive on Friday (Apr 03) 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 2.5m 11s period and expected on Tuesday (Mar 31) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 6th Apr)3.5ft (1.0m) 7s
Best Surf 5AM (Mon 6th Apr)3.5ft (1.0m) 7s
Most Powerful 8AM (Fri 3rd Apr)5ft (1.5m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 23°C on Thu afternoon, min 21°C on Tue morning). Mainly strong winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Fri afternoon, min 21°C on Fri morning). Mainly fresh winds.

Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
2
1
Swell
Height Map
Wave Height (m) & direction (?)
0.3
SSW
0.3
S
0.3
S
0.3
S
0.3
S
0.2
S
0.3
S
0.3
S
0.3
S
1.5
ENE
0.3
SW
0.2
SSW
0.3
SW
0.4
SW
0.4
SW
1.3
ENE
1
ENE
0.5
SSW
0.4
SSW
0.5
SSW
0.4
SSW
Period(s) (?)121212111117111413816201518187716151616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)28252523222321363227140383781801601081498714791
Wind
(km/h)
35
ENE
40
ENE
25
ENE
30
ENE
35
ENE
25
ENE
30
ENE
30
ENE
25
NE
25
ENE
30
NE
25
NE
30
ENE
30
NE
25
ENE
30
ENE
30
ENE
15
ENE
10
ESE
10
E
5
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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
crosscross-
off
cross-
off
High Tide
/ height (m)
3:37PM
0.45
3:26AM
0.41
4:10PM
0.49
3:55AM
0.36
4:43PM
0.52
4:24AM
0.30
5:18PM
0.53
4:52AM
0.25
5:56PM
0.53
5:21AM
0.20
6:39PM
0.52
5:50AM
0.16
7:31PM
0.51
Low Tide
/ height (m)
9:19AM
-0.05
9:36PM
0.04
9:38AM
-0.05
10:22PM
0.05
9:58AM
-0.05
11:09PM
0.06
10:19AM
-0.04
12:00AM
0.08
10:40AM
-0.03
12:57AM
0.09
11:04AM
-0.01
2:10AM
0.11
11:29AM
0.01
3:54AM
0.12
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Sunrise6:24--6:24--6:22--6:22--6:20--6:20--6:20--
Sunset-6:45--6:45--6:45--6:45--6:46--6:46--6:46-
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
Rain (mm)
---------------------
Temp. °C222222222222222322222321222322232323242424
Feels °C (?)161617181817171918181918202019202021252526
  • Map Icons:
  • Break
  • 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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