Surf Forecasts:
How big are the waves at Number Fours today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 6ft (1.8m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 5.5ft (1.7m), 8s period with ENE swell.
- Evening surf: Evening surf (21 Oct, local time) - 5ft (1.6m), 8s period with ENE swell.
The current surf forecast for Number Fours at 9PM is: 1.6m 8s primary swell from a East-northeast direction and 0.4m 15s secondary swell from a Southwest direction, 0.2m 6s secondary swell from a South-southeast direction (forecast issued at 01:00pm October 21). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 6ft (1.8m) | 8s |
| Afternoon (21 Oct) | 5.5ft (1.7m) | 8s |
| Evening (21 Oct) | 5ft (1.6m) | 8s |
Table - waves today at Number Fours. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 24°C on Thu night). Mainly fresh winds. | |||||||||||||||||||||
Wed 21 | Thursday 22 | Friday 23 | |||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | SSW 14 | E 7 | SSW 13 | E 8 | E 13 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 358 | 302 | 270 | 288 | 256 | 244 | 214 | 204 | 176 | 147 | 157 | 71 | 70 | 69 | 55 | 55 | 145 | 145 | 145 | 141 | 196 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | 12:44PM0.54m | 1:42AM0.45m | 1:19PM0.51m | 2:15AM0.52m | 1:54PM0.48m | ||||||||||||||||
Low Tide | 7:28PM0.07m | 7:20AM0.16m | 7:47PM0.04m | 8:13AM0.15m | 8:09PM0.02m | ||||||||||||||||
 | | |  | | | | | | | | | | |  |  | | | | | | |
 | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — |
 | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 24 | 24 |
Feels °C | 23 | 22 | 23 | 22 | 23 | 25 | 26 | 26 | 24 | 25 | 25 | 24 | 23 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | SW 14 | E 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 8 | E 13 | NE 12 | SSW 13 | SSW 16 |
| kJ | 60 | 57 | 55 | 54 | 256 | 244 | 214 | 204 | 176 | 147 | 47 | 54 | 82 | 82 | 79 | 107 | 145 | 84 | 69 | 141 | 196 |
Swell 2 Height (m) Direction Period (s) | S 12 | N 9 | N 9 | SSE 6 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | E 13 | SSW 14 | SSW 13 | E 7 | E 8 | E 7 | E 13 | NE 12 | E 13 | NE 12 | NE 11 |
| kJ | 26 | 7 | 6 | 3 | 54 | 54 | 54 | 53 | 52 | 49 | 32 | 71 | 70 | 53 | 55 | 39 | 84 | 73 | 54 | 66 | 59 |
Swell 3 Height (m) Direction Period (s) | N 9 | S 12 | SSE 6 | N 9 | S 11 | S 11 | S 11 | S 11 | SSE 11 | E 13 | SSE 6 | E 14 | NE 15 | SSW 13 | E 13 | E 13 | NE 13 | SSW 13 | SSW 16 | E 13 | E 12 |
| kJ | 16 | 11 | 3 | 6 | 10 | 10 | 9 | 9 | 12 | 31 | 6 | 35 | 33 | 69 | 55 | 55 | 60 | 65 | 80 | 80 | 72 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | — | — | ENE 7 | NE 8 | E 7 | — | — | — | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 358 | 302 | 270 | 288 | — | — | — | — | — | — | 157 | 94 | 63 | — | — | — | — | 145 | 145 | 120 | 120 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 39 | 39 | 33 | 31 | 39 | 0 | 0 | 31 | 28 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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