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Number Threes Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Number Threes surfForecast / HAW – Oahu / USA
16 Day Weather and Surf, issued 1 pm Saturday 18 Apr 2026 HSTForecast 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
24.7° 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 Sunday (Apr 19) at 5PM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.7m and 6s. 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 0.6m 16s and forecast to arrive on Saturday (Apr 25) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 14s period and expected on Wednesday (Apr 22) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 19th Apr) | 1.5ft (0.4m) 16s |
| Best Surf | 5PM (Sun 19th Apr) | 1.5ft (0.4m) 16s |
| Most Powerful | 5PM (Sat 25th Apr) | 2ft (0.6m) 16s |
Table - best surf conditions forecast for Number Threes over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Some drizzle, heaviest during Mon afternoon. Warm (max 25°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Some drizzle, heaviest during Wed afternoon. Warm (max 25°C on Tue afternoon, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 16 | 6 | 6 | 14 | 7 | 7 | 7 | 15 | 13 | 13 | 7 | 7 | 7 | 10 | 7 | 16 | 13 | 15 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 98 | 73 | 46 | 65 | 46 | 51 | 103 | 36 | 26 | 27 | 0 | 0 | 0 | 38 | 38 | 36 | 0 | 9 | 40 | 70 | 115 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross- off | cross | glass | glass | glass | glass | glass | glass | cross- on | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | ||
High Tide / height (m) | 5:19PM 0.66 | 4:56AM 0.19 | 6:11PM 0.66 | 5:45AM 0.13 | 7:09PM 0.65 | 6:54AM 0.09 | 8:13PM 0.62 | 8:44AM 0.08 | 9:21PM 0.59 | 10:46AM 0.12 | 10:27PM 0.55 | 12:06PM 0.19 | 11:27PM 0.51 | 12:58PM 0.27 | |||||||||
Low Tide / height (m) | 12:26AM 0.03 | 10:35AM -0.11 | 1:42AM 0.04 | 11:13AM -0.08 | 3:11AM 0.03 | 11:58AM -0.04 | 4:34AM 0.02 | 12:59PM 0.01 | 5:34AM -0.01 | 2:32PM 0.07 | 6:16AM -0.02 | 4:20PM 0.10 | 6:49AM -0.04 | ||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||
| Sunrise | - | - | 6:09 | - | - | 6:07 | - | - | 6:07 | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:03 | ||
| Sunset | 6:51 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | ||
 |  | | | |  |  | | | |  | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | 1 | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | ||
| Temp. °C | 25 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 25 | 24 | 24 | 25 | 23 | 24 | 25 | 24 | 24 | ||
| Feels °C (?) | 29 | 23 | 24 | 25 | 25 | 28 | 27 | 28 | 27 | 28 | 29 | 27 | 28 | 26 | 25 | 26 | 23 | 24 | 24 | 23 | 23 | ||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Number Threes 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 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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