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Number Fours surfForecast / HAW – Oahu / USA
12 Day Weather and Surf, issued 7 am Wednesday 03 Dec 2025 HSTForecast 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
26.1° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 04) at 8PM. The primary swell is predicted to be 1.0m and 6s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Number Fours in the next 12 days are 1.7m 8s and forecast to arrive on Friday (Dec 05) 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 1.2m 15s period and expected on Friday (Dec 05) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 4th Dec) | 3.5ft (1.0m) 6s |
| Best Surf | 11PM (Tue 9th Dec) | 3.5ft (1.0m) 8s |
| Most Powerful | 11PM (Fri 5th Dec) | 5.5ft (1.7m) 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 25°C on Wed afternoon, min 23°C on Wed morning). Winds increasing (calm on Wed morning, fresh winds from the ENE by Fri afternoon). | Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Sat afternoon, min 23°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun night, light winds from the ENE by Mon night). | ||||||||||||||||||||
Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 5 | 12 | 5 | 4 | 6 | 6 | 7 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 8 | 7 | 8 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 8 | 0 | 7 | 3 | 44 | 78 | 176 | 226 | 364 | 221 | 186 | 168 | 192 | 202 | 218 | 169 | 140 | 97 | 115 | 112 | 121 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- off | cross | cross- on | cross- off | cross- on | 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 | cross- on |
High Tide / height (m) | 2:22PM 0.23 | 3:44AM 0.82 | 3:14PM 0.20 | 4:30AM 0.84 | 4:08PM 0.17 | 5:18AM 0.83 | 5:08PM 0.16 | 6:06AM 0.80 | 6:16PM 0.16 | 6:54AM 0.74 | 7:38PM 0.18 | 7:42AM 0.67 | 9:10PM 0.22 | ||||||||
Low Tide / height (m) | 10:11AM 0.10 | 8:05PM -0.09 | 11:10AM 0.07 | 8:45PM -0.09 | 12:07PM 0.06 | 9:28PM -0.08 | 1:02PM 0.05 | 10:13PM -0.04 | 1:56PM 0.05 | 11:02PM 0.02 | 2:46PM 0.04 | 11:56PM 0.09 | 3:32PM 0.04 | 1:03AM 0.16 | |||||||
Wednesday 03 | Thursday 04 | Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | |||||||||||||||
| Sunrise | 6:52 | - | - | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - | 6:56 | - | - | 6:56 | - | - | 6:56 | - | - |
| Sunset | - | 5:47 | - | - | 5:47 | - | - | 5:47 | - | - | 5:49 | - | - | 5:49 | - | - | 5:49 | - | - | 5:49 | - |
 |  |  | | | | | |  | | | | | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 24 | 25 | 25 | 25 | 25 | 24 |
| Feels °C (?) | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 24 | 22 | 24 | 24 | 23 | 23 | 23 | 22 | 21 | 22 | 24 | 25 | 25 | 26 |
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Number Fours surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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