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Number Fours surfForecast / HAW – Oahu / USA
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
25.1° C
(Which is slightly warmer than usual)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 Monday (Apr 27) at 5AM. The primary swell is predicted to be 0.6m and 14s period. 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 1.7m 6s and forecast to arrive on Wednesday (Apr 29) 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 1.5m 8s period and expected on Saturday (Apr 25) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 27th Apr) | 2ft (0.6m) 14s |
| Best Surf | 5AM (Mon 27th Apr) | 2ft (0.6m) 14s |
| Most Powerful | 5AM (Wed 29th Apr) | 5.5ft (1.7m) 6s |
Table - best surf conditions forecast for Number Fours over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Thu morning, min 23°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Tue afternoon. Warm (max 25°C on Sun afternoon, min 23°C on Sun morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
E 7 | ENE 7 | NNE 10 | SSW 16 | SW 16 | SSW 13 | SW 15 | SSW 16 | SSW 15 | SW 14 | SW 14 | SW 14 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | SW 12 | ENE 7 | ENE 7 | ENE 7 | |
27 | 47 | 0 | 25 | 40 | 68 | 113 | 162 | 146 | 169 | 167 | 153 | 154 | 173 | 144 | 114 | 105 | 36 | 200 | 195 | 144 | |
Wind (km/h) | |||||||||||||||||||||
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 | cross-off | |
High Tide | 10:46AM0.12m | 10:27PM0.55m | 12:06PM0.19m | 11:27PM0.51m | 12:58PM0.27m | 00:17AM0.46m | 1:38PM0.34m | 1:01AM0.41m | 2:14PM0.41m | 1:39AM0.36m | 2:46PM0.48m | 2:14AM0.31m | 3:18PM0.52m | 2:47AM0.27m | |||||||
Low Tide | 2:32PM0.07m | 6:16AM-0.02m | 4:20PM0.10m | 6:49AM-0.04m | 5:52PM0.11m | 7:15AM-0.05m | 7:05PM0.10m | 7:39AM-0.06m | 8:07PM0.09m | 8:00AM-0.07m | 9:01PM0.08m | 8:20AM-0.07m | 9:50PM0.06m | ||||||||
6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 6:52 | — | — | 6:52 | — | — | 6:53 | — | — | 6:53 | — | — | 6:53 | — | — | 6:54 | — | — | 6:54 | — | |
— | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | 3 | 1 | — | — | — | |
Temp °C | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 23 |
25 | 25 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 23 | 23 | 24 | 23 | 22 | 23 | 21 | 21 | 21 | 21 | 20 | |
Swell 1 Height (m) Direction Period (s) | NNE 11 | NNE 11 | NNE 10 | NNE 9 | NNE 9 | WNW 12 | SW 15 | SSW 16 | SSW 15 | NE 8 | SW 14 | SW 14 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | SW 12 | SW 12 | NNW 15 | NW 14 | NNW 13 |
183 | 161 | 111 | 76 | 92 | 47 | 113 | 162 | 146 | 164 | 167 | 153 | 154 | 173 | 144 | 114 | 37 | 36 | 84 | 95 | 108 | |
Swell 2 Height (m) Direction Period (s) | W 13 | W 12 | W 12 | W 13 | W 13 | SSW 13 | WNW 11 | NNW 13 | NNW 12 | SW 14 | NNW 12 | NW 11 | SSW 13 | SSW 13 | SW 13 | SSW 12 | NW 14 | NW 13 | SW 12 | SW 11 | NE 9 |
80 | 77 | 46 | 87 | 84 | 68 | 43 | 67 | 58 | 169 | 53 | 31 | 118 | 116 | 83 | 58 | 33 | 46 | 35 | 19 | 13 | |
Swell 3 Height (m) Direction Period (s) | NNW 12 | NW 12 | WNW 15 | SSW 16 | SW 16 | NW 12 | NW 14 | WNW 11 | WNW 11 | NNW 12 | W 10 | NNE 10 | NW 11 | NW 11 | NW 10 | NE 9 | NNW 10 | NNE 8 | NNE 10 | NE 10 | SSW 11 |
58 | 37 | 71 | 25 | 40 | 38 | 49 | 23 | 22 | 57 | 7 | 10 | 30 | 29 | 27 | 12 | 10 | 6 | 10 | 15 | 11 | |
Wind waves Height (m) Direction Period (s) | E 7 | ENE 7 | ENE 4 | ENE 5 | ENE 5 | NE 9 | NE 8 | NE 8 | NE 8 | — | NE 8 | NE 8 | — | — | — | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 |
27 | 47 | 26 | 28 | 17 | 193 | 260 | 260 | 221 | — | 160 | 151 | — | — | — | 73 | 105 | 126 | 200 | 195 | 144 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 28 | 1 | 1 | 2 | 31 | 1 | 1 | 31 | 1 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 33 | 33 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











