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Number Fours surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 pm Saturday 02 May 2026 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
25.1° C
(Which is normal for this time of year)How big are the waves at Number Fours today?
The current surf forecast for Number Fours at 4PM is: 1.5m 8s primary swell from a East-northeast direction and 0.5m 14s secondary swell from a South direction (forecast issued at 01:00pm May 02). An open ocean swell of 0.6m 14s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 May) | 5.5ft (1.7m) | 8s |
| Afternoon (02 May) | 5ft (1.5m) | 8s |
| Evening (02 May) | 4.5ft (1.4m) | 8s |
Table - waves today at Number Fours. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Sat afternoon, min 23°C on Sat night). Winds decreasing (fresh winds from the ENE on Sat afternoon, calm by Tue morning). | ||||||||||||||||||||||||
Sat 2 | Sunday 3 | Monday 4 | Tue 5 | |||||||||||||||||||||
11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
331 | 276 | 244 | 210 | 215 | 263 | 264 | 253 | 259 | 232 | 328 | 311 | 280 | 237 | 199 | 172 | 176 | 155 | 159 | 159 | 123 | 102 | 77 | 75 | |
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 | cross-off | cross-off | glassy | |
High Tide | 4:55PM0.59m | 4:25AM0.16m | 5:32PM0.59m | 5:02AM0.13m | 6:14PM0.57m | 5:45AM0.11m | ||||||||||||||||||
Low Tide | 9:26AM-0.06m | 00:14AM0.05m | 9:52AM-0.05m | 1:08AM0.06m | 10:20AM-0.03m | 2:11AM0.06m | ||||||||||||||||||
 | | |  |  | | |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — |
 | — | — | 6:55 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | 6:58 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 |
21 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 21 | 21 | 20 | 21 | 22 | 22 | 22 | 23 | 25 | 26 | |
Swell 1 Height (m) Direction Period (s) | NW 15 | NW 14 | NNW 14 | ENE 8 | S 15 | SSW 16 | SSW 16 | S 13 | S 13 | S 14 | S 14 | SSW 14 | SSW 14 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 13 | NW 12 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
 kJ | 174 | 167 | 133 | 210 | 161 | 263 | 146 | 90 | 90 | 93 | 150 | 165 | 165 | 163 | 106 | 101 | 92 | 89 | 89 | 74 | 123 | 102 | 77 | 75 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 13 | NW 13 | S 13 | NW 12 | NW 12 | NNW 12 | NNW 12 |
| kJ | 106 | 106 | 106 | 88 | 84 | 84 | 80 | 72 | 52 | 51 | 51 | 50 | 32 | 31 | 30 | 19 | 18 | 60 | 80 | 89 | 118 | 114 | 94 | 93 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 18 | S 14 | SW 16 | SW 21 | S 13 | SSW 16 | SSW 16 | SSW 16 | SW 21 | SW 20 | SSW 20 | SW 20 | SW 19 | SW 19 | NW 13 | SSW 19 | SSW 19 | SSW 18 | SSW 13 | SSW 13 | SSW 13 | SSW 12 |
| kJ | 61 | 103 | 103 | 107 | 10 | 18 | 86 | 86 | 51 | 50 | 18 | 16 | 37 | 97 | 96 | 96 | 28 | 37 | 37 | 32 | 57 | 56 | 55 | 51 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — |
| kJ | 331 | 276 | 244 | — | 215 | 253 | 264 | 253 | 259 | 232 | 328 | 311 | 280 | 237 | 199 | 172 | 176 | 155 | 159 | 159 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 31 | 39 | 31 | 31 | 1 | 2 | 1 | 2 | 31 | 31 | 126 | 39 | 32 | 31 | 1 | 1 | 1 | 31 | 31 | 1 | 1 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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