Number Fours surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Thursday 26 Feb 2026 HST
Forecast update in hr  min  s Forecast update imminent
Number Fours surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Number Fours sea temperature is
24.4° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Number Fours this week:

The surf forecast for Number Fours over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Feb 27) at 5AM. The primary swell is predicted to be 0.4m and 15s 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 12 days are 2.2m 8s and forecast to arrive on Thursday (Mar 05) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 12s period and expected on Thursday (Feb 26) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 27th Feb)1.5ft (0.4m) 15s
Best Surf 2AM (Thu 5th Mar)7ft (2.2m) 8s
Most Powerful 5AM (Thu 5th Mar)7ft (2.2m) 8s

Table - best surf conditions forecast for Number Fours over the next 12 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 23°C on Sat afternoon, min 21°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Mon night. Warm (max 24°C on Tue afternoon, min 21°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the ENE by Tue morning).

Friday
27
Saturday
28
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thu
05
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.8
ENE
0.4
SW
0.7
E
0.4
SW
0.4
SW
0.5
E
0.6
E
0.6
E
0.6
E
0.6
E
0.6
E
0.7
E
0.3
SSE
1
ENE
1.4
ENE
1.6
E
2.1
E
1.7
ENE
2.2
E
1.9
ENE
1.8
ENE
Period(s) (?)616615145556677966777888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4063315453122021262931511774165250432319596485437
Wind
(km/h)
15
ENE
10
ESE
5
ESE
15
ENE
10
E
20
ENE
5
ENE
0
NE
5
NNE
10
N
10
NE
25
ENE
30
ENE
35
ENE
30
ENE
25
ENE
30
E
25
ENE
15
ENE
25
ESE
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscrosscross-
off
crosscross-
off
glassglassoffoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
crosscross-
off
High Tide
/ height (m)
1:34AM
0.67
1:50PM
0.19
2:18AM
0.67
2:36PM
0.24
2:57AM
0.66
3:16PM
0.30
3:31AM
0.63
3:55PM
0.35
4:03AM
0.58
4:32PM
0.39
4:33AM
0.52
5:10PM
0.43
5:01AM
0.45
5:49PM
0.45
Low Tide
/ height (m)
9:04AM
0.02
6:54PM
-0.01
9:29AM
0.01
7:52PM
-0.02
9:53AM
-0.01
8:42PM
-0.02
10:16AM
-0.02
9:30PM
-0.00
10:38AM
-0.02
10:16PM
0.02
11:00AM
-0.02
11:02PM
0.06
11:22AM
-0.02
Friday
27
Saturday
28
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thu
05
Sunrise-6:52--6:52--6:52--6:50--6:50--6:48--6:48-
Sunset--6:34--6:35--6:35--6:36--6:36--6:36--6:37
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
------------2--------
Temp. °C212222222223222323232323232324232324232324
Feels °C (?)192222222222222625242322202022201924222123
  • 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 12 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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